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[ "I like this feature! I think the first question we should decide on is how to convert all datasets into the same format. In T5, the authors decided to format every dataset into a text-to-text format. If the dataset had \"multiple\" inputs like MNLI, the inputs were concatenated. So in MNLI the input:\r\n\r\n> - **Hypothesis**: The St. Louis Cardinals have always won.\r\n> \r\n> - **Premise**: yeah well losing is i mean i’m i’m originally from Saint Louis and Saint Louis Cardinals when they were there were uh a mostly a losing team but \r\n\r\nwas flattened to a single input:\r\n\r\n> mnli hypothesis: The St. Louis Cardinals have always won. premise:\r\n> yeah well losing is i mean i’m i’m originally from Saint Louis and Saint Louis Cardinals\r\n> when they were there were uh a mostly a losing team but.\r\n\r\nThis flattening is actually a very simple operation in `nlp` already. You would just need to do the following:\r\n\r\n```python \r\ndef flatten_inputs(example):\r\n return {\"input\": \"mnli hypothesis: \" + example['hypothesis'] + \" premise: \" + example['premise']}\r\n\r\nt5_ready_mnli_ds = mnli_ds.map(flatten_inputs, remove_columns=[<all columns except output>])\r\n```\r\n\r\nSo I guess converting the datasets into the same format can be left to the user for now. \r\nThen the question is how we can merge the datasets. I would probably be in favor of a simple \r\n\r\n```python \r\ndataset.add()\r\n```\r\n\r\nfunction that checks if the dataset is of the same format and if yes merges the two datasets. Finally, how should the sampling be implemented? **Examples-proportional mixing** corresponds to just merging the datasets and shuffling. For the other two sampling approaches we would need some higher-level features, maybe even a `dataset.sample()` function for merged datasets. \r\n\r\nWhat are your thoughts on this @thomwolf @lhoestq @ghomasHudson @enzoampil ?", "I agree that we should leave the flattening of the dataset to the user for now. Especially because although the T5 framing seems obvious, there are slight variations on how the T5 authors do it in comparison to other approaches such as gpt-3 and decaNLP.\r\n\r\nIn terms of sampling, Examples-proportional mixing does seem the simplest to implement so would probably be a good starting point.\r\n\r\nTemperature-scaled mixing would probably most useful, offering flexibility as it can simulate the other 2 methods by setting the temperature parameter. There is a [relevant part of the T5 repo](https://github.com/google-research/text-to-text-transfer-transformer/blob/03c94165a7d52e4f7230e5944a0541d8c5710788/t5/data/utils.py#L889-L1118) which should help with implementation.\r\n\r\nAccording to the T5 authors, equal-mixing performs worst. Among the other two methods, tuning the K value (the artificial dataset size limit) has a large impact.\r\n", "I agree with going with temperature-scaled mixing for its flexibility!\r\n\r\nFor the function that combines the datasets, I also find `dataset.add()` okay while also considering that users may want it to be easy to combine a list of say 10 data sources in one go.\r\n\r\n`dataset.sample()` should also be good. By the looks of it, we're planning to have as main parameters: `temperature`, and `K`.\r\n\r\nOn converting the datasets to the same format, I agree that we can leave these to the users for now. But, I do imagine it'd be an awesome feature for the future to have this automatically handled, based on a chosen *approach* to formatting :smile: \r\n\r\nE.g. T5, GPT-3, decaNLP, original raw formatting, or a contributed way of formatting in text-to-text. ", "This is an interesting discussion indeed and it would be nice to make multi-task easier.\r\n\r\nProbably the best would be to have a new type of dataset especially designed for that in order to easily combine and sample from the multiple datasets.\r\n\r\nThis way we could probably handle the combination of datasets with differing schemas as well (unlike T5).", "@thomwolf Are you suggesting making a wrapper class which can take existing datasets as arguments and do all the required sampling/combining, to present the same interface as a normal dataset?\r\n\r\nThat doesn't seem too complicated to implement.\r\n", "I guess we're looking at the end user writing something like:\r\n``` python\r\nds = nlp.load_dataset('multitask-t5',datasets=[\"squad\",\"cnn_dm\",...], k=1000, t=2.0)\r\n```\r\nUsing the t5 method of combining here (or this could be a function passed in as an arg) \r\n\r\nPassing kwargs to each 'sub-dataset' might become tricky.", "From thinking upon @thomwolf 's suggestion, I've started experimenting:\r\n```python\r\nclass MultitaskDataset(DatasetBuilder):\r\n def __init__(self, *args, **kwargs):\r\n super(MultitaskDataset, self).__init__(*args, **kwargs)\r\n self._datasets = kwargs.get(\"datasets\")\r\n\r\n def _info(self):\r\n return nlp.DatasetInfo(\r\n description=_DESCRIPTION,\r\n features=nlp.Features({\r\n \"source\": nlp.Value(\"string\"),\r\n \"target\": nlp.Sequence(nlp.Value(\"string\"))\r\n })\r\n )\r\n\r\n def _get_common_splits(self):\r\n '''Finds the common splits present in all self._datasets'''\r\n min_set = None\r\n for dataset in self._datasets:\r\n if min_set != None:\r\n min_set.intersection(set(dataset.keys()))\r\n else:\r\n min_set = set(dataset.keys())\r\n return min_set\r\n\r\n....\r\n\r\n# Maybe this?:\r\nsquad = nlp.load_dataset(\"squad\")\r\ncnn_dm = nlp.load_dataset(\"cnn_dailymail\",\"3.0.0\")\r\nmultitask_dataset = nlp.load_dataset(\r\n 'multitask_dataset',\r\n datasets=[squad,cnn_dailymail], \r\n k=1000, \r\n t=2.0\r\n)\r\n\r\n```\r\n\r\nDoes anyone know what methods of `MultitaskDataset` I would need to implement? Maybe `as_dataset` and `download_and_prepare`? Most of these should be just calling the methods of the sub-datasets. \r\n\r\nI'm assuming DatasetBuilder is better than the more specific `GeneratorBasedBuilder`, `BeamBasedBuilder`, etc....\r\n\r\nOne of the other problems is that the dataset size is unknown till you construct it (as you can pick the sub-datasets). Am hoping not to need to make changes to `nlp.load_dataset` just for this class.\r\n\r\nI'd appreciate it if anyone more familiar with nlp's internal workings could tell me if I'm on the right track!", "I think I would probably go for a `MultiDataset` wrapper around a list of `Dataset`.\r\n\r\nI'm not sure we need to give it `k` and `t` parameters at creation, it can maybe be something along the lines of:\r\n```python\r\nsquad = nlp.load_dataset(\"squad\")\r\ncnn_dm = nlp.load_dataset(\"cnn_dailymail\",\"3.0.0\")\r\n\r\nmultitask_dataset = nlp.MultiDataset(squad, cnn_dm)\r\n\r\nbatch = multitask_dataset.sample(10, temperature=2.0, k=1000)\r\n```\r\n\r\nThe first proof-of-concept for multi-task datasets could definitely require that the provided datasets have the same name/type for columns (if needed you easily rename/cast a column prior to instantiating the `MultiDataset`).\r\n\r\nIt's good to think about it for some time though and don't overfit too much on the T5 examples (in particular for the ways/kwargs for sampling among datasets).", "The problem with changing `k` and `t` per sampling is that you'd have to somehow remember which examples you'd already returned while re-weighting the remaining examples based on the new `k` and `t`values. It seems possible but complicated (I can't really see a reason why you'd want to change the weighting of datasets after you constructed the multidataset).\r\n\r\nWouldn't it be convenient if it implemented the dataset interface? Then if someone has code using a single nlp dataset, they can replace it with a multitask combination of more datasets without having to change other code. We would at least need to be able to pass it into a `DataLoader`.\r\n\r\n", "A very janky (but working) implementation of `multitask_dataset.sample()` could be something like this:\r\n```python\r\nimport nlp\r\nimport torch\r\n\r\nclass MultiDataset():\r\n def __init__(self, *args, temperature=2.0, k=1000, maximum=None, scale=1):\r\n self.datasets = args\r\n self._dataloaders = {}\r\n for split in self._get_common_splits():\r\n split_datasets = [ds[split] for ds in self.datasets]\r\n mixing_rates = self._calc_mixing_rates(split_datasets,temperature, k, maximum, scale)\r\n weights = []\r\n for i in range(len(self.datasets)):\r\n weights += [mixing_rates[i]]*len(self.datasets[i][split])\r\n self._dataloaders[split] = torch.utils.data.DataLoader(torch.utils.data.ConcatDataset(split_datasets),\r\n sampler=torch.utils.data.sampler.WeightedRandomSampler(\r\n num_samples=len(weights),\r\n weights = weights,\r\n replacement=True),\r\n shuffle=False)\r\n\r\n def _get_common_splits(self):\r\n '''Finds the common splits present in all self.datasets'''\r\n min_set = None\r\n for dataset in self.datasets:\r\n if min_set != None:\r\n min_set.intersection(set(dataset.keys()))\r\n else:\r\n min_set = set(dataset.keys())\r\n return min_set\r\n\r\n\r\n def _calc_mixing_rates(self,datasets, temperature=2.0, k=1000, maximum=None, scale=1):\r\n '''Work out the weighting of each dataset based on t and k'''\r\n mixing_rates = []\r\n for dataset in datasets:\r\n rate = len(dataset)\r\n rate *= scale\r\n if maximum:\r\n rate = min(rate, maximum)\r\n if temperature != 1.0:\r\n rate = rate ** (1.0/temperature)\r\n mixing_rates.append(rate)\r\n return mixing_rates\r\n\r\n def sample(self,n,split):\r\n batch = []\r\n for example in self._dataloaders[split]:\r\n batch.append(example)\r\n n -= 1\r\n if n == 0:\r\n return batch\r\n\r\n\r\ndef flatten(dataset,flatten_fn):\r\n for k in dataset.keys():\r\n if isinstance(dataset[k],nlp.Dataset):\r\n dataset[k] = dataset[k].map(flatten_fn,remove_columns=dataset[k].column_names)\r\n\r\n# Squad\r\ndef flatten_squad(example):\r\n return {\"source\": \"squad context: \" + example['context'] + \" question: \" + example['question'],\"target\":example[\"answers\"][\"text\"]}\r\nsquad = nlp.load_dataset(\"squad\")\r\nflatten(squad,flatten_squad)\r\n\r\n# CNN_DM\r\ndef flatten_cnn_dm(example):\r\n return {\"source\": \"cnn_dm: \" + example['article'],\"target\":[example[\"highlights\"]]}\r\ncnn_dm = nlp.load_dataset(\"cnn_dailymail\", \"3.0.0\")\r\nflatten(cnn_dm,flatten_cnn_dm)\r\n\r\nmultitask_dataset = MultiDataset(squad, cnn_dm)\r\nbatch = multitask_dataset.sample(100,\"train\")\r\n```\r\n\r\nThere's definitely a more sensible way than embedding `DataLoader`s inside. ", "There is an interesting related investigation by @zphang here https://colab.research.google.com/github/zphang/zphang.github.io/blob/master/files/notebooks/Multi_task_Training_with_Transformers_NLP.ipynb", "Good spot! Here are my thoughts:\r\n\r\n- Aside: Adding `MultitaskModel` to transformers might be a thing to raise - even though having task-specific heads has become unfashionable in recent times in favour of text-to-text type models.\r\n- Adding the task name as an extra field also seems useful for these kind of models which have task-specific heads\r\n- There is some validation of our approach that the user should be expected to `map` datasets into a common form.\r\n- The size-proportional sampling (also called \"Examples-proportional mixing\") used here doesn't perform too badly in the T5 paper (it's comparable to temperature-scaled mixing in many cases but less flexible. This is only reasonable with a `K` maximum size parameter to prevent very large datasets dominating). This might be good for a first prototype using:\r\n ```python\r\n def __iter__(self):\r\n \"\"\"\r\n For each batch, sample a task, and yield a batch from the respective\r\n task Dataloader.\r\n\r\n We use size-proportional sampling, but you could easily modify this\r\n to sample from some-other distribution.\r\n \"\"\"\r\n task_choice_list = []\r\n for i, task_name in enumerate(self.task_name_list):\r\n task_choice_list += [i] * self.num_batches_dict[task_name]\r\n task_choice_list = np.array(task_choice_list)\r\n np.random.shuffle(task_choice_list)\r\n\r\n dataloader_iter_dict = {\r\n task_name: iter(dataloader) \r\n for task_name, dataloader in self.dataloader_dict.items()\r\n }\r\n for task_choice in task_choice_list:\r\n task_name = self.task_name_list[task_choice]\r\n yield next(dataloader_iter_dict[task_name]) \r\n ```\r\n We'd just need to pull samples from the raw datasets and not from `DataLoader`s for each task. We can assume the user has done `dataset.shuffle()` if they want to.\r\n\r\n Other sampling methods can later be implemented by changing how the `task_choice_list` is generated. This should allow more flexibility and not tie us to specific methods for sampling among datasets.\r\n", "Another thought: Multitasking over benchmarks (represented as Meta-datasets in nlp) is probably a common use case. Would be nice to pass an entire benchmark to our `MultiDataset` wrapper rather than having to pass individual components.", "Here's a fully working implementation based on the `__iter__` function of @zphang.\r\n\r\n- I've generated the task choice list in the constructor as it allows us to index into the MultiDataset just like a normal dataset. I'm changing `task_choice_list` into a list of `(dataset_idx, example_idx)` so each entry references a unique dataset example. The shuffling has to be done before this as we don't want to shuffle within each task (we assume this is done by the user if this is what they intend).\r\n- I'm slightly concerned this list could become very large if many large datasets were used. Can't see a way round it at the moment though.\r\n- I've used `task.info.builder_name` as the dataset name. Not sure if this is correct.\r\n- I'd love to add some of the other `Dataset` methods (map, slicing by column, etc...). Would be great to implement the whole interface so a single dataset can be simply replaced by this.\r\n- This does everything on the individual example-level. If some application required batches all from a single task in turn we can't really do that.\r\n\r\n```python\r\nimport nlp\r\nimport numpy as np\r\n\r\nclass MultiDataset:\r\n def __init__(self,tasks):\r\n self.tasks = tasks\r\n\r\n # Create random order of tasks\r\n # Using size-proportional sampling\r\n task_choice_list = []\r\n for i, task in enumerate(self.tasks):\r\n task_choice_list += [i] * len(task)\r\n task_choice_list = np.array(task_choice_list)\r\n np.random.shuffle(task_choice_list)\r\n\r\n # Add index into each dataset\r\n # - We don't want to shuffle within each task\r\n counters = {}\r\n self.task_choice_list = []\r\n for i in range(len(task_choice_list)):\r\n idx = counters.get(task_choice_list[i],0)\r\n self.task_choice_list.append((task_choice_list[i],idx))\r\n counters[task_choice_list[i]] = idx + 1\r\n\r\n\r\n def __len__(self):\r\n return np.sum([len(t) for t in self.tasks])\r\n\r\n def __repr__(self):\r\n task_str = \", \".join([str(t) for t in self.tasks])\r\n return f\"MultiDataset(tasks: {task_str})\"\r\n\r\n def __getitem__(self,key):\r\n if isinstance(key, int):\r\n task_idx, example_idx = self.task_choice_list[key]\r\n task = self.tasks[task_idx]\r\n example = task[example_idx]\r\n example[\"task_name\"] = task.info.builder_name\r\n return example\r\n elif isinstance(key, slice):\r\n raise NotImplementedError()\r\n\r\n def __iter__(self):\r\n for i in range(len(self)):\r\n yield self[i]\r\n\r\n\r\ndef load_multitask(*datasets):\r\n '''Create multitask datasets per split'''\r\n\r\n def _get_common_splits(datasets):\r\n '''Finds the common splits present in all self.datasets'''\r\n min_set = None\r\n for dataset in datasets:\r\n if min_set != None:\r\n min_set.intersection(set(dataset.keys()))\r\n else:\r\n min_set = set(dataset.keys())\r\n return min_set\r\n\r\n common_splits = _get_common_splits(datasets)\r\n out = {}\r\n for split in common_splits:\r\n out[split] = MultiDataset([d[split] for d in datasets])\r\n return out\r\n\r\n\r\n##########################################\r\n# Dataset Flattening\r\n\r\ndef flatten(dataset,flatten_fn):\r\n for k in dataset.keys():\r\n if isinstance(dataset[k],nlp.Dataset):\r\n dataset[k] = dataset[k].map(flatten_fn,remove_columns=dataset[k].column_names)\r\n\r\n# Squad\r\ndef flatten_squad(example):\r\n return {\"source\": \"squad context: \" + example['context'] + \" question: \" + example['question'],\r\n \"target\":example[\"answers\"][\"text\"]}\r\nsquad = nlp.load_dataset(\"squad\")\r\nflatten(squad,flatten_squad)\r\n\r\n# CNN_DM\r\ndef flatten_cnn_dm(example):\r\n return {\"source\": \"cnn_dm: \" + example['article'],\"target\":[example[\"highlights\"]]}\r\ncnn_dm = nlp.load_dataset(\"cnn_dailymail\", \"3.0.0\")\r\nflatten(cnn_dm,flatten_cnn_dm)\r\n\r\n#############################################\r\n\r\nmtds = load_multitask(squad,cnn_dm)\r\n\r\nfor example in mtds[\"train\"]:\r\n print(example[\"task_name\"],example[\"target\"])\r\n```\r\nLet me know if you have any thoughts. I've started using this in some of my projects and it seems to work. If people are happy with the general approach for a first version, I can make a pull request.", "Hey! Happy to jump into the discussion here. I'm still getting familiar with bits of this code, but the reasons I sampled over data loaders rather than datasets is 1) ensuring that each sampled batch corresponds to only 1 task (in case of different inputs formats/downstream models) and 2) potentially having different batch sizes per task (e.g. some tasks have very long/short inputs). How are you currently dealing with these in your PR?", "The short answer is - I'm not! Everything is currently on a per-example basis. It would be fairly simple to add a `batch_size` argument which would ensure that every `batch_size` examples come from the same task. That should suit most use-cases (unless you wanted to ensure batches all came from the same task and apply something like `SortishSampler` on each task first)\r\n\r\nYour notebook was really inspiring by the way - thanks!", "@zphang is having different batch sizes per task actually helpful? Would be interesting to know as it's not something I've come across as a technique used by any MTL papers.", "mt-dnn's [batcher.py](https://github.com/namisan/mt-dnn/blob/master/mt_dnn/batcher.py) might be worth looking at.", "> @zphang is having different batch sizes per task actually helpful? Would be interesting to know as it's not something I've come across as a technique used by any MTL papers.\r\n\r\nI think having different batch sizes per task is particularly helpful in some scenarios where each task has different amount of data. For example, the problem I'm currently facing is one task has tens of thousands of samples while one task has a couple hundreds. I think in this case different batch size could help. But if using the same batch size is a lot simpler to implement, I guess it makes sense to go with that.", "I think that instead of proportional to size sampling you should specify weights or probabilities for drawing a batch from each dataset. We should also ensure that the smaller datasets are repeated so that the encoder layer doesn't overtrain on the largest dataset.", "Are there any references for people doing different batch sizes per task in the literature? I've only seen constant batch sizes with differing numbers of batches for each task which seems sufficient to prevent the impact of large datasets (Read 3.5.3 of the [T5 paper](https://arxiv.org/pdf/1910.10683.pdf) for example).\r\n\r\n", "Hi,\r\nregarding building T5 dataset , I think we can use datasets https://github.com/huggingface/datasets and then need something similar to tf.data.experimental.sample_from_datasets, do you know if similar functionality exist in pytorch? Which can sample multiple datasets with the given rates. thanks. ", "Is this feature part of a `datasets` release yet? ", "> Here's a fully working implementation based on the `__iter__` function of @zphang.\r\n> \r\n> * I've generated the task choice list in the constructor as it allows us to index into the MultiDataset just like a normal dataset. I'm changing `task_choice_list` into a list of `(dataset_idx, example_idx)` so each entry references a unique dataset example. The shuffling has to be done before this as we don't want to shuffle within each task (we assume this is done by the user if this is what they intend).\r\n> * I'm slightly concerned this list could become very large if many large datasets were used. Can't see a way round it at the moment though.\r\n> * I've used `task.info.builder_name` as the dataset name. Not sure if this is correct.\r\n> * I'd love to add some of the other `Dataset` methods (map, slicing by column, etc...). Would be great to implement the whole interface so a single dataset can be simply replaced by this.\r\n> * This does everything on the individual example-level. If some application required batches all from a single task in turn we can't really do that.\r\n> \r\n> ```python\r\n> import nlp\r\n> import numpy as np\r\n> \r\n> class MultiDataset:\r\n> def __init__(self,tasks):\r\n> self.tasks = tasks\r\n> \r\n> # Create random order of tasks\r\n> # Using size-proportional sampling\r\n> task_choice_list = []\r\n> for i, task in enumerate(self.tasks):\r\n> task_choice_list += [i] * len(task)\r\n> task_choice_list = np.array(task_choice_list)\r\n> np.random.shuffle(task_choice_list)\r\n> \r\n> # Add index into each dataset\r\n> # - We don't want to shuffle within each task\r\n> counters = {}\r\n> self.task_choice_list = []\r\n> for i in range(len(task_choice_list)):\r\n> idx = counters.get(task_choice_list[i],0)\r\n> self.task_choice_list.append((task_choice_list[i],idx))\r\n> counters[task_choice_list[i]] = idx + 1\r\n> \r\n> \r\n> def __len__(self):\r\n> return np.sum([len(t) for t in self.tasks])\r\n> \r\n> def __repr__(self):\r\n> task_str = \", \".join([str(t) for t in self.tasks])\r\n> return f\"MultiDataset(tasks: {task_str})\"\r\n> \r\n> def __getitem__(self,key):\r\n> if isinstance(key, int):\r\n> task_idx, example_idx = self.task_choice_list[key]\r\n> task = self.tasks[task_idx]\r\n> example = task[example_idx]\r\n> example[\"task_name\"] = task.info.builder_name\r\n> return example\r\n> elif isinstance(key, slice):\r\n> raise NotImplementedError()\r\n> \r\n> def __iter__(self):\r\n> for i in range(len(self)):\r\n> yield self[i]\r\n> \r\n> \r\n> def load_multitask(*datasets):\r\n> '''Create multitask datasets per split'''\r\n> \r\n> def _get_common_splits(datasets):\r\n> '''Finds the common splits present in all self.datasets'''\r\n> min_set = None\r\n> for dataset in datasets:\r\n> if min_set != None:\r\n> min_set.intersection(set(dataset.keys()))\r\n> else:\r\n> min_set = set(dataset.keys())\r\n> return min_set\r\n> \r\n> common_splits = _get_common_splits(datasets)\r\n> out = {}\r\n> for split in common_splits:\r\n> out[split] = MultiDataset([d[split] for d in datasets])\r\n> return out\r\n> \r\n> \r\n> ##########################################\r\n> # Dataset Flattening\r\n> \r\n> def flatten(dataset,flatten_fn):\r\n> for k in dataset.keys():\r\n> if isinstance(dataset[k],nlp.Dataset):\r\n> dataset[k] = dataset[k].map(flatten_fn,remove_columns=dataset[k].column_names)\r\n> \r\n> # Squad\r\n> def flatten_squad(example):\r\n> return {\"source\": \"squad context: \" + example['context'] + \" question: \" + example['question'],\r\n> \"target\":example[\"answers\"][\"text\"]}\r\n> squad = nlp.load_dataset(\"squad\")\r\n> flatten(squad,flatten_squad)\r\n> \r\n> # CNN_DM\r\n> def flatten_cnn_dm(example):\r\n> return {\"source\": \"cnn_dm: \" + example['article'],\"target\":[example[\"highlights\"]]}\r\n> cnn_dm = nlp.load_dataset(\"cnn_dailymail\", \"3.0.0\")\r\n> flatten(cnn_dm,flatten_cnn_dm)\r\n> \r\n> #############################################\r\n> \r\n> mtds = load_multitask(squad,cnn_dm)\r\n> \r\n> for example in mtds[\"train\"]:\r\n> print(example[\"task_name\"],example[\"target\"])\r\n> ```\r\n> \r\n> Let me know if you have any thoughts. I've started using this in some of my projects and it seems to work. If people are happy with the general approach for a first version, I can make a pull request.\r\n\r\nNot sure if this is what I'm looking for, but I implemented a version of Examples-Proportional mixing supporting only the basic feature [here](https://stackoverflow.com/a/74070116/10732321), seems to work in my project. ", "You can use `interleave_datasets` to mix several datasets together. By default it alternates between all the datasets, but you can also provide sampling probabilities if you want to oversample from one of the datasets\r\n\r\n```python\r\nfrom datasets import load_dataset, interleave_datasets\r\n\r\nsquad = load_dataset(\"squad\", split=\"train\")\r\ncnn_dm = load_dataset(\"cnn_dailymail\", \"3.0.0\", split=\"train\")\r\nds = interleave_datasets([squad, cnn_dm])\r\n\r\nprint(ds[0])\r\n# {'id': '5733be284776f41900661182',\r\n# 'title': 'University_of_Notre_Dame',\r\n# 'context': 'Architecturally, the school has a Catholic character...',\r\n# 'question': 'To whom did the Virgin Mary allegedly appear in 1858 in Lourdes France?',\r\n# 'answers': {'text': ['Saint Bernadette Soubirous'], 'answer_start': [515]},\r\n# 'article': None,\r\n# 'highlights': None}\r\nprint(ds[1])\r\n# {'id': '42c027e4ff9730fbb3de84c1af0d2c506e41c3e4',\r\n# 'title': None,\r\n# 'context': None,\r\n# 'question': None,\r\n# 'answers': None,\r\n# 'article': 'LONDON, England (Reuters) -- Harry Potter star Daniel Radcliffe...',\r\n# 'highlights': \"Harry Potter star Daniel Radcliffe...\"}\r\n```\r\n\r\nsee docs at https://huggingface.co/docs/datasets/v2.6.1/en/package_reference/main_classes#datasets.interleave_datasets", "I also have this implementation of multi-task sampler here which I used it to tune T5: https://github.com/rabeehk/hyperformer/blob/main/hyperformer/data/multitask_sampler.py " ]

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[ "ROUGE-1 and ROUGE-L shouldn't return the same thing. This is weird", "For the rouge2 metric you can do\r\n\r\n```python\r\nrouge = nlp.load_metric('rouge')\r\nwith open(\"pred.txt\") as p, open(\"ref.txt\") as g:\r\n for lp, lg in zip(p, g):\r\n rouge.add(lp, lg)\r\nscore = rouge.compute(rouge_types=[\"rouge2\"])\r\n```\r\n\r\nNote that I just did a PR to have both `.add` and `.add_batch` for metrics, that's why now this is `rouge.add(lp, lg)` and not `rouge.add([lp], [lg])`", "Well I just tested with the official script and both rouge1 and rougeL return exactly the same thing for the input you gave, so this is actually fine ^^\r\n\r\nI hope it helped :)" ]

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[ "I just ran it on colab and got this\r\n```\r\n[{'expected': SplitInfo(name='train', num_bytes=610252351, num_examples=532812,\r\ndataset_name='blog_authorship_corpus'), 'recorded': SplitInfo(name='train',\r\nnum_bytes=611607465, num_examples=533285, dataset_name='blog_authorship_corpus')},\r\n{'expected': SplitInfo(name='validation', num_bytes=37500394, num_examples=31277,\r\ndataset_name='blog_authorship_corpus'), 'recorded': SplitInfo(name='validation',\r\nnum_bytes=35652716, num_examples=30804, dataset_name='blog_authorship_corpus')}]\r\n```\r\nwhich is different from the `dataset_infos.json` and also different from yours.\r\n\r\nIt looks like the script for generating examples is not consistent", "The files provided by the authors are corrupted and the script seems to ignore the xml files that can't be decoded (it does `try:... except UnicodeDecodeError`). Maybe depending of the environment some files can be opened and some others don't but not sure why", "Feel free to do `ignore_verifications=True` for now... The verifications only include a check on the checksums of the downloaded files, and a check on the number of examples in each splits.", "I'm getting this same issue when loading the `imdb` corpus via `dataset = load_dataset(\"imdb\")`. When I try `ignore_verifications=True`, no examples are read into the `train` portion of the dataset. ", "> I'm getting this same issue when loading the `imdb` corpus via `dataset = load_dataset(\"imdb\")`. When I try `ignore_verifications=True`, no examples are read into the `train` portion of the dataset.\r\n\r\nWhen the checksums don't match, it may mean that the file you downloaded is corrupted. In this case you can try to load the dataset again `load_dataset(\"imdb\", download_mode=\"force_redownload\")`\r\n\r\nAlso I just checked on my side and it worked fine:\r\n\r\n```python\r\nfrom datasets import load_dataset\r\n\r\ndataset = load_dataset(\"imdb\")\r\nprint(len(dataset[\"train\"]))\r\n# 25000\r\n```\r\n\r\nLet me know if redownloading fixes your issue @EmilyAlsentzer .\r\nIf not, feel free to open a separate issue.", "It doesn't seem to fix the problem. I'll open a separate issue. Thanks. ", "I wasn't aware of the \"force_redownload\" option and manually removed the '/home/me/.cache/huggingface/datasets/' dir, this worked for me (dataset 'cnn_dailymail')", "Yes I think this might not be documented well enough. Let’s add it to the doc @lhoestq @SBrandeis.\r\nAnd everything on how to control the cache behavior better (removing, overriding, changing the path, etc)", "Already fixed:\r\n```python\r\nIn [1]: from datasets import load_dataset\r\n\r\nIn [2]: ds = load_dataset(\"blog_authorship_corpus\")\r\n\r\nIn [3]: ds\r\nOut[3]: \r\nDatasetDict({\r\n train: Dataset({\r\n features: ['text', 'date', 'gender', 'age', 'horoscope', 'job'],\r\n num_rows: 689793\r\n })\r\n validation: Dataset({\r\n features: ['text', 'date', 'gender', 'age', 'horoscope', 'job'],\r\n num_rows: 37919\r\n })\r\n})\r\n", "In my case, I had to remove the cache datasets directory completely as @putssander suggested, the download_mode='forced_redownload' was insufficient.\r\n\r\nI had a private repository with data files that I loaded with a loading script. It was working fine until I pushed a new version of the data files and then the NonMatchingSplitsSizesError was raised.\r\n" ]

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[ "I agree that a `.filter` method would be VERY useful and appreciated. I'm not a big fan of using `flatten_nested` as it completely breaks down the structure of the example and it may create bugs. Right now I think it may not work for nested structures. Maybe there's a simpler way that we've not figured out yet.", "Instead of flattening everything and rebuilding the example, maybe we can try to access the examples like this:\r\n```python\r\nfor i in range(num_examples):\r\n example = map_nested(lambda x: x[i], batch)\r\n # ... then test to keep it or not\r\n```", "> Instead of flattening everything and rebuilding the example, maybe we can try to access the examples like this:\r\n> \r\n> ```python\r\n> for i in range(num_examples):\r\n> example = map_nested(lambda x: x[i], batch)\r\n> # ... then test to keep it or not\r\n> ```\r\n\r\nAwesome I'll check it out :-) ", "> Instead of flattening everything and rebuilding the example, maybe we can try to access the examples like this:\r\n> \r\n> ```python\r\n> for i in range(num_examples):\r\n> example = map_nested(lambda x: x[i], batch)\r\n> # ... then test to keep it or not\r\n> ```\r\n\r\nAwesome this function is definitely much nicer!", "Actually I just realized that `map_nested` might not work either as it applies the function at the very last list of the structure. However we can imagine that a single example has also a list in its structure:\r\n```python\r\none_example = {\r\n \"title\": \"blabla\",\r\n \"paragraphs\": [\r\n \"p1\", \"p2\", ...\r\n ]\r\n}\r\n```", "We'll probably have to take into account the `dset._data.schema` to extract the examples from the batch.", "> Actually I just realized that `map_nested` might not work either as it applies the function at the very last list of the structure. However we can imagine that a single example has also a list in its structure:\r\n> \r\n> ```python\r\n> one_example = {\r\n> \"title\": \"blabla\",\r\n> \"paragraphs\": [\r\n> \"p1\", \"p2\", ...\r\n> ]\r\n> }\r\n> ```\r\n\r\nThey both work. I'm using it on trivia_qa which is pretty nested. If you use the option `dict_only=True` I think it's fine.", "> We'll probably have to take into account the `dset._data.schema` to extract the examples from the batch.\r\n\r\nWhy? ", "Actually it's fine. I guess this is going to be yet another thing to be unit-tested just to make sure ^^", "Yes, I will need to add tests and documentation! \r\n@thomwolf - would a function like this be ok? It abstracts `.map()` a bit which might be hard to understand. ", "I tried on some datasets with nested structure and it works fine ! Great work :D \r\n", "Awesome :-), I will add documentation and some simple unittests", "Ok merging!" ]

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[ "Here the full error trace:\r\n\r\n```\r\nArrowInvalid Traceback (most recent call last)\r\n<ipython-input-1-7aaf3f011358> in <module>\r\n 1 import nlp\r\n 2 ds = nlp.load_dataset(\"trivia_qa\", \"rc\", split=\"validation[:1%]\") # this might take 2.3 min to download but it's cached afterwards...\r\n----> 3 ds.map(lambda x: x, load_from_cache_file=False)\r\n\r\n~/python_bin/nlp/arrow_dataset.py in map(self, function, with_indices, batched, batch_size, remove_columns, keep_in_memory, load_from_cache_file, cache_file_name, writer_batch_size, arrow_schema, disable_nullable)\r\n 549\r\n 550 if update_data:\r\n--> 551 writer.finalize() # close_stream=bool(buf_writer is None)) # We only close if we are writing in a file\r\n 552\r\n 553 # Create new Dataset from buffer or file\r\n\r\n~/python_bin/nlp/arrow_writer.py in finalize(self, close_stream)\r\n 182 def finalize(self, close_stream=True):\r\n 183 if self.pa_writer is not None:\r\n--> 184 self.write_on_file()\r\n 185 self.pa_writer.close()\r\n 186 if close_stream:\r\n\r\n~/python_bin/nlp/arrow_writer.py in write_on_file(self)\r\n 104 \"\"\"\r\n 105 if self.current_rows:\r\n--> 106 pa_array = pa.array(self.current_rows, type=self._type)\r\n 107 first_example = pa.array(self.current_rows[0:1], type=self._type)[0]\r\n 108 # Sanity check\r\n\r\n~/hugging_face/venv_3.7/lib/python3.7/site-packages/pyarrow/array.pxi in pyarrow.lib.array()\r\n\r\n~/hugging_face/venv_3.7/lib/python3.7/site-packages/pyarrow/array.pxi in pyarrow.lib._sequence_to_array()\r\n\r\n~/hugging_face/venv_3.7/lib/python3.7/site-packages/pyarrow/error.pxi in pyarrow.lib.check_status()\r\n\r\nArrowInvalid: Could not convert TagMe with type str: converting to null type\r\n```", "Actually thinking a bit more about it, it's probably a data sample that is not correct in `trivia_qa`. But I'm a bit surprised though that we managed to write it in .arrow format and now cannot write it anymore after an \"identity\" mapping.", "I don't have this error :x", "Interesting, maybe I have a very old cache of trivia_qa...thanks for checking", "I'm running it right now on colab to double check", "Actually, I know what the problem is...I'm quite sure it's a bug. Here we take some test inputs: https://github.com/huggingface/nlp/blob/0e0ef12c14d2175e0b0bd7d8aa814b09e2cd7e1f/src/nlp/arrow_dataset.py#L472\r\n\r\nIt might be that in the test inputs, a `Sequence` type value is an emtpy list. So in my case I have `ds[0][\"entity_pages'][\"wiki_context\"] = []`. => this leads to an `arrow_schema` equal to `null` for `[\"entity_pages'][\"wiki_context\"]` => see line: https://github.com/huggingface/nlp/blob/0e0ef12c14d2175e0b0bd7d8aa814b09e2cd7e1f/src/nlp/arrow_dataset.py#L501 instead of list of string which it should for other examples. \r\n\r\nGuess it's an edge case, but it can happen.", "Good point, I think the schema should be infered at the writing stage where we have a `writer_batch_size` number of examples (typically 10k) so it's even less likely to run into this scenario." ]

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[ "Can you run the style formatting tools to pass the code quality test?\r\n\r\nYou can find all the details in CONTRIBUTING.md: https://github.com/huggingface/nlp/blob/master/CONTRIBUTING.md#how-to-contribute-to-nlp", "Nice ! ", "``make style`` done! Thanks for the approvals." ]

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[ "~is the viewer also open source?~\r\n[is a streamlit app!](https://docs.streamlit.io/en/latest/getting_started.html)", "Appears that [two thirds of those polled on Twitter](https://twitter.com/srush_nlp/status/1265734497632477185) are in favor of _some_ mechanism for averting eyeballs from the test data.", "We do no longer use datasets-viewer." ]

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[ "We are thinking about ways to combine datasets for T5 in #217, feel free to share your thoughts about this.", "Ok great! I will look at it. Thanks" ]

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[ "Indeed, good catch ! thanks\r\nFixing it right now" ]

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[ "Amazing, @LysandreJik!", "Really did my best!" ]

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[ "Good point!\r\n\r\nI guess we could add this to `write_batch` as well (before using `self._schema` in the first line of this method)?" ]

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[ "Hopefully. this also fixes the dataset view on https://huggingface.co/nlp/viewer/ :)", "Oh good catch ! This should fix it indeed" ]

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[ "Sounds like something related to the nlp viewer @srush ", "Fixed. " ]

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[ "Hi so there are indeed two configurations in the datasets as you can see [here](https://github.com/huggingface/nlp/blob/master/datasets/scientific_papers/scientific_papers.py#L81-L82).\r\n\r\nYou can load either one with:\r\n```python\r\ndataset = nlp.load_dataset('scientific_papers', 'pubmed')\r\ndataset = nlp.load_dataset('scientific_papers', 'arxiv')\r\n```\r\n\r\nThis issues is actually related to a similar user-experience issue with GLUE. When several configurations are available and the first configuration is loaded by default (see issue #152 and #130), it seems to be unexpected for users.\r\n\r\nI think we should maybe raise a (very explicit) error when there are several configurations available and the user doesn't specify one.\r\n\r\nWhat do you think @lhoestq @patrickvonplaten @mariamabarham ?", "Yes, it looks like the right thing to do ", "Now if you don't specify which part you want, it raises an error:\r\n```\r\nValueError: Config name is missing.\r\nPlease pick one among the available configs: ['pubmed', 'arxiv']\r\nExample of usage:\r\n\t`load_dataset('scientific_papers', 'pubmed')`\r\n```" ]

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[ "I think that's not related to the config name but the filenames in the dummy data. Mostly it occurs with files downloaded from drive. In that case the dummy file name is extracted from the google drive link and it corresponds to what comes after `https://drive.google.com/`\r\n\r\n", "> I think that's not related to the config name but the filenames in the dummy data. Mostly it occurs with files downloaded from drive. In that case the dummy file name is extracted from the google drive link and it corresponds to what comes after `https://drive.google.com/`\r\n\r\nThe filenames of the dummy data are now encoded (see #173). So this is not a problem anymore.\r\n\r\nThe problem here is different and comes from the directory names where we save the arrow files (basically `dataset_name/config_name/version`). In this case we could have invalid directory names because of the config name\r\n", "Okay great then.", "I like the method, but I'm wondering whether it should just be a test method instead of a `__post_init__` function. From a logical point of view the only reason this error would be thrown is because of an invalid config name introduced when creating the dataset script / adding a new dataset => so I think it might be better to write a simple test for this in `test_dataset_common.py`...what do you think @lhoestq ?", "`test_dataset_common.py` only tests canonical datasets no ? What if users wants to create their own script ?", "> `test_dataset_common.py` only tests canonical datasets no ? What if users wants to create their own script ?\r\n\r\nIt tests all dataset that can be loaded either locally or on AWS (which includes all non-canonical datasets as well)...by their own script you mean like a private dataset script that they don't want to be public? I guess even then they could locally run the test functions to check...", "We could have a bunch of simple consistency tests that run before uploading with the CLI (without loading data if we don't want to force the user to have dummy data)?", "Let's say someone want to create his own private script. As the script is not meant to be shared, it's not going to be placed in `/datasets` right ? Maybe the script is going to be inside another project. If I'm not wrong in this case the `test_dataset_common.py` is not going to test his script.\r\n\r\nRaising an error in the post init is a sanity check that would tell the user immediately what's wrong.\r\nThe error is raised if he tried to load the script or if he uses `nlp-cli test`", "> Let's say someone want to create his own private script. As the script is not meant to be shared, it's not going to be placed in `/datasets` right ? Maybe the script is going to be inside another project. If I'm not wrong in this case the `test_dataset_common.py` is not going to test his script.\r\n> \r\n> Raising an error in the post init is a sanity check that would tell the user immediately what's wrong.\r\n> The error is raised if he tried to load the script or if he uses `nlp-cli test`\r\n\r\nOK, fair point! I'm good with this then :-) ", "I'm fine with this as well (even though I understand what you meant @patrickvonplaten, we can still change it later if needed)", "> We could have a bunch of simple consistency tests that run before uploading with the CLI (without loading data if we don't want to force the user to have dummy data)?\r\n\r\nYes! I guess that's a big question whether we should force the user to add dummy data. It's probably too tedious for the user...so when uploading to circle ci should we just check \r\n- 1) All configs can be instantiated (if there are any)\r\n- 2) The BuilderClass can be instantiated ... \r\n- 3) ... maybe some more\r\n\r\nand maybe suggest to the user to add dummy data using the dummy data command?", "I really like that we have a test with dummy data for canonical datasets. This is insurance that they'll keep working in the long run. \r\n\r\nOn the other hand I understand that we will probably not force this practice for scripts uploaded on S3 by a user under his namespace (non-canonical), as it is tedious. As I understand right now the test is done for all the datasets on aws, even the non-canonical ? We should think about different tests for non-canonical datasets.\r\n\r\nI also like the idea of a simple consistency test !", "Merging this one for now, we can think about the test for non-canonical datasets later" ]

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[ "@lhoestq - tiny change in the dummy data command, should be good to merge." ]

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[ "@lhoestq - the config name is rather special here: *E.g.* `mode=first,char_skip=25`. It includes `=` and `,` - will that be a problem for windows folders, you think? \r\n\r\nApart from that good to merge for me.", "It's ok to have `=` and `,`.\r\nWindows doesn't like things like `?`, `:`, `/` etc.\r\n\r\nI'll add some lines to raise an error if the config name is invalid.", "Thanks for fixing things up! I'm curious to take a look at the zip files now to know the format for future reference." ]

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[ "I guess we can use `tf.data.Dataset.from_generator` instead. I'll give it a try.", "Is `tf.data.Dataset.from_generator` working on TPU ?", "`from_generator` is not working on TPU, I met the following error :\r\n\r\n```\r\nFile \"/usr/local/lib/python3.6/contextlib.py\", line 88, in __exit__\r\n next(self.gen)\r\n File \"/home/usr/.venv/bart/lib/python3.6/site-packages/tensorflow_core/python/eager/context.py\", line 1900, in execution_mode\r\n executor_new.wait()\r\n File \"/home/usr/.venv/bart/lib/python3.6/site-packages/tensorflow_core/python/eager/executor.py\", line 67, in wait\r\n pywrap_tensorflow.TFE_ExecutorWaitForAllPendingNodes(self._handle)\r\ntensorflow.python.framework.errors_impl.NotFoundError: No registered 'PyFunc' OpKernel for 'CPU' devices compatible with node {{node PyFunc}}\r\n . Registered: <no registered kernels>\r\n\r\n [[PyFunc]]\r\n```\r\n\r\n---\r\n\r\n@lhoestq It seems you merged some changes that allow lazy-loading. **Can you give an example of how to use ?** Maybe the Colab notebook should be updated with this method as well.", "Could you send me the code you used to run create the dataset using `.from_generator` ? What version of tensorflow are you using ?", "I'm using TF2.2\r\n\r\nHere is my code :\r\n```\r\nimport nlp\r\nfrom transformers import BartTokenizer\r\n\r\ntokenizer = BartTokenizer.from_pretrained('bart-large')\r\n\r\ndef encode(sample):\r\n article_inputs = tokenizer.encode_plus(sample[\"article\"], max_length=tokenizer.model_max_length, pad_to_max_length=True)\r\n summary_inputs = tokenizer.encode_plus(sample[\"highlights\"], max_length=tokenizer.model_max_length, pad_to_max_length=True)\r\n\r\n article_inputs.update({\"lm_labels\": summary_inputs['input_ids']})\r\n return article_inputs\r\n\r\ncnn_dm = nlp.load_dataset('cnn_dailymail', '3.0.0', split='test')\r\ncnn_dm = cnn_dm.map(encode)\r\n\r\ndef gen():\r\n for sample in cnn_dm:\r\n s = {}\r\n s['input_ids'] = sample['input_ids']\r\n s['attention_mask'] = sample['attention_mask']\r\n s['lm_labels'] = sample['lm_labels']\r\n yield s\r\n\r\ndataset = tf.data.Dataset.from_generator(gen, output_types={k: tf.int32 for k in ['input_ids', 'attention_mask', 'lm_labels']}, output_shapes={k: tf.TensorShape([tokenizer.model_max_length]) for k in ['input_ids', 'attention_mask', 'lm_labels']}\r\n```", "Apparently we'll have to wait for the next tensorflow release to use `.from_generator` and TPU. See https://github.com/tensorflow/tensorflow/issues/34346#issuecomment-598262489", "Fixed by https://github.com/huggingface/datasets/pull/339" ]

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[ "We store every dataset in the Arrow format. This is convenient as it supports nested types and memory mapping. If you are curious feel free to check the [pyarrow documentation](https://arrow.apache.org/docs/python/)\r\n\r\nYou can use this library to load your covid papers by creating a dataset script. You can find inspiration from the ones we've already written in `/datasets`. Here is a link to the steps to [add a dataset](https://github.com/huggingface/nlp/blob/master/CONTRIBUTING.md#how-to-add-a-dataset)", "Hello @mrm8488 and @lhoestq \r\n\r\nIs there a way to convert a dataset to Apache arrow format (locally/personal use) & use it before sending it to hugging face?\r\n\r\nThanks :)", "> Is there a way to convert a dataset to Apache arrow format (locally/personal use) & use it before sending it to hugging face?\r\n\r\nSure, to get a dataset in arrow format you can either:\r\n- [load from local files (txt, json, csv)](https://huggingface.co/nlp/loading_datasets.html?highlight=csv#from-local-files)\r\n- OR [load from python data (dict, pandas)](https://huggingface.co/nlp/loading_datasets.html?highlight=csv#from-in-memory-data)\r\n- OR [create your own dataset script](https://huggingface.co/nlp/loading_datasets.html?highlight=csv#using-a-custom-dataset-loading-script)\r\n", "> > Is there a way to convert a dataset to Apache arrow format (locally/personal use) & use it before sending it to hugging face?\r\n> \r\n> Sure, to get a dataset in arrow format you can either:\r\n> \r\n> * [load from local files (txt, json, csv)](https://huggingface.co/nlp/loading_datasets.html?highlight=csv#from-local-files)\r\n> \r\n> * OR [load from python data (dict, pandas)](https://huggingface.co/nlp/loading_datasets.html?highlight=csv#from-in-memory-data)\r\n> \r\n> * OR [create your own dataset script](https://huggingface.co/nlp/loading_datasets.html?highlight=csv#using-a-custom-dataset-loading-script)\r\n\r\nLinks were broken. \r\n\r\nUpdated links provided as below\r\n- [load from local files (txt, json, csv)](https://huggingface.co/docs/datasets/loading_datasets.html#from-local-or-remote-files)\r\n- [load from python data (dict, pandas)](https://huggingface.co/docs/datasets/loading_datasets.html#from-in-memory-data)\r\n- [create your own dataset script](https://huggingface.co/docs/datasets/loading_datasets.html#using-a-custom-dataset-loading-script)\r\n" ]

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[ "Nice ! :) \r\nCan we group them into one dataset with two versions, instead of having two datasets ?", "Yes sure, I can use the version as config name", "@lhoestq can you check? I grouped them", "Awesome :) feel free to merge after fixing the test in the CI", "@mariamabarham - feel free to merge when you're ready. I only checked the dummy files. I did not run the SLOW tests. " ]

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[ "Hi @sarahwie, can you details this a little more?\r\n\r\nI'm not sure I understand what you refer to and what you mean when you say \"Previously, this was done by passing a list of InputFeatures to the dataloader instead of a list of InputFeature\"", "I think I've resolved it. For others' reference: to convert from using the [`MultipleChoiceDataset` class](https://github.com/huggingface/transformers/blob/a34a9896ac2a4a33ff9cd805c76eed914c8d8965/examples/multiple-choice/utils_multiple_choice.py#L82)/[`run_multiple_choice.py`](https://github.com/huggingface/transformers/blob/a34a9896ac2a4a33ff9cd805c76eed914c8d8965/examples/multiple-choice/run_multiple_choice.py) script in Huggingface Transformers, I've done the following for hellaswag:\r\n\r\n1. converted the `convert_examples_to_features()` function to only take one input and return a dictionary rather than a list:\r\n```\r\ndef convert_examples_to_features(example, tokenizer, max_length):\r\n\r\n choices_inputs = defaultdict(list)\r\n for ending_idx, ending in enumerate(example['endings']['ending']):\r\n text_a = example['ctx']\r\n text_b = ending\r\n\r\n inputs = tokenizer.encode_plus(\r\n text_a,\r\n text_b,\r\n add_special_tokens=True,\r\n max_length=max_length,\r\n pad_to_max_length=True,\r\n return_overflowing_tokens=True,\r\n )\r\n if \"num_truncated_tokens\" in inputs and inputs[\"num_truncated_tokens\"] > 0:\r\n logger.info(\r\n \"Attention! you are cropping tokens (swag task is ok). \"\r\n \"If you are training ARC and RACE and you are poping question + options,\"\r\n \"you need to try to use a bigger max seq length!\"\r\n )\r\n\r\n for key in inputs:\r\n choices_inputs[key].append(inputs[key])\r\n \r\n choices_inputs['label'] = int(example['label'])\r\n\r\n return choices_inputs\r\n```\r\n2. apply this directly (instance-wise) to dataset, convert dataset to torch tensors. Dataset is then ready to be passed to `Trainer` instance.\r\n\r\n```\r\ndataset['train'] = dataset['train'].map(lambda x: convert_examples_to_features(x, tokenizer, max_length), batched=False)\r\ncolumns = ['input_ids', 'token_type_ids', 'attention_mask', 'label']\r\ndataset['train'].set_format(type='torch', columns=columns)\r\n```" ]

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[ "On a similar note it would be nice to differentiate between train-easy, train-medium, and train-hard", "Hi @tylerroost, we don't have a timeline for this at the moment.\r\nIf you want to give it a look we would be happy to review a PR on it.\r\nAlso, the library is one week old so everything is quite barebones, in particular the doc.\r\nYou should expect some bumps on the road.\r\n\r\nTo get you started, you can check the datasets scripts in the `./datasets` folder on the repo and find the one on math_datasets that will need to be modified. Then you should check the original repository on the math_dataset to see where the other files to download are located and what is the expected format for the various parts of the dataset.\r\n\r\nTo get a general overview on how datasets scripts are written and used, you can read the nice tutorial on how to add a new dataset for TensorFlow Dataset [here](https://www.tensorflow.org/datasets/add_dataset), our API is not exactly identical but it can give you a high-level overview.", "Thanks I'll give it a look" ]

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[ "I have seen that somebody is hard working on easierly loadable wikipedia. #129 \r\nMaybe I should wait a few days for that version ?", "Yes we (well @lhoestq) are very actively working on this." ]

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[ "Looks like a duplicate of #120.\r\nThis is already fixed on master. We'll do a new release on pypi soon", "Good catch, it looks fixed.\r\n" ]

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[ "awesome !" ]

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[ "This is the test set given by the Glue benchmark. The labels are not provided, and therefore set to -1.", "Ah, yeah. Why it didn’t occur to me. 😂\nThank you for your comment." ]

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[ "It's my misunderstanding. I cannot just upload a csv. I need to write a dataset loading script too.", "I now try with the sample `datasets/csv` folder. \r\n\r\n nlp-cli upload csv\r\n\r\nThe error is still the same\r\n\r\n```\r\n2020-05-21 17:20:56.394659: I tensorflow/stream_executor/platform/default/dso_loader.cc:44] Successfully opened dynamic library libcudart.so.10.1\r\nAbout to upload file /content/csv/csv.py to S3 under filename csv/csv.py and namespace korakot\r\nAbout to upload file /content/csv/dummy/0.0.0/dummy_data.zip to S3 under filename csv/dummy/0.0.0/dummy_data.zip and namespace korakot\r\nProceed? [Y/n] y\r\nUploading... This might take a while if files are large\r\nTraceback (most recent call last):\r\n File \"/usr/local/bin/nlp-cli\", line 33, in <module>\r\n service.run()\r\n File \"/usr/local/lib/python3.6/dist-packages/nlp/commands/user.py\", line 234, in run\r\n token=token, filename=filename, filepath=filepath, organization=self.args.organization\r\n File \"/usr/local/lib/python3.6/dist-packages/nlp/hf_api.py\", line 141, in presign_and_upload\r\n urls = self.presign(token, filename=filename, organization=organization)\r\n File \"/usr/local/lib/python3.6/dist-packages/nlp/hf_api.py\", line 132, in presign\r\n return PresignedUrl(**d)\r\nTypeError: __init__() got an unexpected keyword argument 'cdn'\r\n```\r\n", "We haven't tested the dataset upload feature yet cc @julien-c \r\nThis is on our short/mid-term roadmap though", "Even if I fix the `TypeError: __init__() got an unexpected keyword argument 'cdn'` error, it looks like it still uploads to `https://s3.amazonaws.com/models.huggingface.co/bert/<namespace>/<dataset_name>` instead of `https://s3.amazonaws.com/datasets.huggingface.co/nlp/<namespace>/<dataset_name>`", "@lhoestq The endpoints in https://github.com/huggingface/nlp/blob/master/src/nlp/hf_api.py should be (depending on the type of file):\r\n```\r\nPOST /api/datasets/presign\r\nGET /api/datasets/listObjs\r\nDELETE /api/datasets/deleteObj\r\nPOST /api/metrics/presign \r\nGET /api/metrics/listObjs\r\nDELETE /api/metrics/deleteObj\r\n```\r\n\r\nIn addition to this, @thomwolf cleaned up the objects with dataclasses but you should revert this and re-align to the hf_api that's in this branch of transformers: https://github.com/huggingface/transformers/pull/4632 (so that potential new JSON attributes in the API output don't break existing versions of any library)", "New commands are\r\n```\r\nnlp-cli upload_dataset <path/to/dataset>\r\nnlp-cli upload_metric <path/to/metric>\r\nnlp-cli s3_datasets {rm, ls}\r\nnlp-cli s3_metrics {rm, ls}\r\n```\r\nClosing this issue." ]

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[ "If your dataset is a collection of sub-datasets, you should probably consider having one config per sub-dataset. For example for Glue, we have sst2, mnli etc.\r\nIf you want to have multiple train sets (for example one per stage). The easiest solution would be to name them `nlp.Split(\"train_stage1\")`, `nlp.Split(\"train_stage2\")`, etc. or something like that.", "Thanks for the tip! I ended up setting up three different versions of the dataset with their own configs.\r\n\r\nfor the named splits, I was trying with `nlp.Split(\"train-stage1\")`, which fails. Changing to `nlp.Split(\"train_stage1\")` works :) I looked for examples of what works in the code comments, it may be worth adding some examples of valid/invalid names in there?" ]

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[ "Thanks for cleaning up the extracted dummy data folders! Instead of changing the file_utils we could also just put these folders under `.gitignore` (or maybe already done?).", "Awesome! I guess you might have to add the changes for the MockDLManager now in a different file though because of my last PR - sorry!" ]

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[ "Should be fixed on master now :)", "Thanks @lhoestq 👍 Now I can uninstall WSL and get back to work with windows.🙂" ]

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[ "One thing for SQuAD is that I wanted to be able to use the SQuAD dataset directly in the metrics and I'm not sure it will be possible with this format.\r\n\r\n(maybe it's not really possible in general though)", "This is kinda related to one thing I had in mind which is that we may want to be able to dump our model predictions in a `Dataset` as well so that we don't keep them in memory (and we can export them in a nice format later as well when we will have a serialization formats).\r\n\r\nMaybe this is overkill though, I haven't fully wraped my head around this.", "I'm also perfectly fine with merging this PR in the current state and working on a larger scope later.", "This is the format needed to run the official script directly. The format of the squad dataset is different from the input of the metric. \r\n\r\n> One thing for SQuAD is that I wanted to be able to use the SQuAD dataset directly in the metrics and I'm not sure it will be possible with this format.\r\n> \r\n> (maybe it's not really possible in general though)\r\n\r\nOk I see. I'll try to use the same format", "Ok with this update I changed the format to fit the squad dataset format.\r\nNow you can do:\r\n```python\r\nsquad_dset = nlp.load_dataset(\"squad\")\r\nsquad_metric = nlp.load_metric(\"/Users/quentinlhoest/Desktop/hf/nlp-bis/metrics/squad\")\r\npredictions = [\r\n {\"id\": v[\"id\"], \"prediction_text\": v[\"answers\"][\"text\"][0]} # take first possible answer\r\n for v in squad_dset[\"validation\"]\r\n]\r\nsquad_metric.compute(predictions, squad_dset[\"validation\"])\r\n```" ]

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[ "Hi @EntilZha - sorry for waiting so long until taking action here. We created a new command and a new recipe of how to add dummy_data. Can you maybe rebase to `master` as explained in 7. of https://github.com/huggingface/nlp/blob/master/CONTRIBUTING.md#how-to-contribute-to-nlp and check that your dummy data is correct following the instructions here: https://github.com/huggingface/nlp/blob/master/CONTRIBUTING.md#how-to-add-a-dataset ? \r\n\r\nIf the tests described in 5. of https://github.com/huggingface/nlp/blob/master/CONTRIBUTING.md#how-to-add-a-dataset pass we can merge the PR :-) ", "I updated to the most recent master and followed the steps, but still having the similar error where it can't find the correct file since the path to the directory is given, rather than the individual files within them. This still something wrong about how I'm inputting the data or how the tests are reading it?", "It's the dummy_data structure. You actually have to call the dummy data file name `dummy_data` (not .json anything). So there should not be a `dummy_data` folder but for each config only a `dummy_data` which contains your json dummy data. Can you maybe try once more - if it doesn't work I do it for you :-). ", "Would that work if there are multiple files? In my case, I'm including something similar to squad 1.0/2.0 where we have the main dataset + an additional challenge set in different files. Would I have the zip decompress to two files in that case?", "This dataset was actually a special case. It helped us improve the dummy data instructions :-), see #195 .Close this PR and merge #194." ]

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[ "Hi, make sure you have a recent version of pyarrow.\r\n\r\nAre you using it in Google Colab? In this case, this error is probably the same as #128", "Thanks!\r\n\r\nYes I'm using Google Colab, it seems like a duplicate then.", "Closing as it is a duplicate", "Hi,\r\nThe squad bug seems to be fixed, but the loading of the 'wikitext' still suffers from this problem (on Colab with pyarrow=0.17.1).", "When you install `nlp` for the first time on a Colab runtime, it updates the `pyarrow` library that was already on colab. This update shows this message on colab:\r\n```\r\nWARNING: The following packages were previously imported in this runtime:\r\n [pyarrow]\r\nYou must restart the runtime in order to use newly installed versions.\r\n```\r\nYou just have to restart the runtime and it should be fine.", "That was it, thanks!" ]

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[ "Nice !" ]

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[ "+1 for the naming convention\r\n\r\nAbout the `shuffle` method, from my understanding it should be done in `Dataloader` (better separation between dataset processing - usage)", "+1 for shuffle in `Dataloader`. \r\nSome `Dataloader` just store idxs of dataset and just shuffle those idxs, which might(?) be faster than do shuffle in dataset, especially when doing shuffle every epoch.\r\n\r\nAlso +1 for the naming convention.", "As you might already know the issue of dataset shuffling came up in the nlp code [walkthrough](https://youtu.be/G3pOvrKkFuk?t=3204) by Yannic Kilcher\r\n", "We added the `.shuffle` method :)\r\n\r\nClosing this one." ]

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[ "Hello @mrm8488, are these datasets official datasets published in an NLP/CL/ML venue?", "What about this one: https://github.com/ccasimiro88/TranslateAlignRetrieve?" ]

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[ "Sounds good, @mariamabarham do you want to give a look?\r\nI think we should have two configurations so we can allow either version of the dataset to be loaded with the `1.0` version being the default maybe.\r\n\r\nCc some authors of the great cos-e: @nazneenrajani @bmccann", "cos_e v1.0 is related to CQA v1.0 but only CQA v1.11 dataset is available on their website. Indeed their is lots of ids in cos_e v1, which are not in CQA v1.11 or the other way around.\r\n@sarahwie, @thomwolf, @nazneenrajani, @bmccann do you know where I can find CQA v1.0\r\n", "@mariamabarham I'm also not sure where to find CQA 1.0. Perhaps it's not possible to include this version of the dataset. I'll close the issue if that's the case.", "I do have a copy of the dataset. I can upload it to our repo.", "Great @nazneenrajani. let me know once done.\r\nThanks", "@mariamabarham @sarahwie I added them to the cos-e repo https://github.com/salesforce/cos-e/tree/master/data/v1.0", "You can now do\r\n```python\r\nfrom nlp import load_dataset\r\ncos_e = load_dataset(\"cos_e\", \"v1.0\")\r\n```\r\nThanks @mariamabarham !", "Thanks!", "@mariamabarham Just wanted to note that default behavior `cos_e = load_dataset(\"cos_e\")` now loads `v1.0`. Not sure if this is intentional (but the flag specification does work as intended). ", "> @mariamabarham Just wanted to note that default behavior `cos_e = load_dataset(\"cos_e\")` now loads `v1.0`. Not sure if this is intentional (but the flag specification does work as intended).\r\n\r\nIn the new version of `nlp`, if you try `cos_e = load_dataset(\"cos_e\")` it throws this error:\r\n```\r\nValueError: Config name is missing.\r\nPlease pick one among the available configs: ['v1.0', 'v1.11']\r\nExample of usage:\r\n\t`load_dataset('cos_e', 'v1.0')`\r\n```\r\nFor datasets with at least two configurations, we now force the user to pick one (no default)" ]

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[ "Awesome! ", "Hi, yes, this seems to fix #160 -- I cloned the branch locally and verified", "Perfect then :)" ]

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[ "usually you can replace `download` in your dataset script with `download_and_prepare()` - could you share the code for your dataset here? :-) ", "I have an initial version here: https://github.com/EntilZha/nlp/tree/master/datasets/qanta Thats pretty close to what I'll do as a PR, but still want to do some more sanity checks/tests (just got tests passing).\r\n\r\nI figured out how to get all tests passing by adding a download command and some finagling with the data zip https://github.com/EntilZha/nlp/blob/master/tests/utils.py#L127\r\n\r\n", "I'm quite positive that you can just replace the `dl_manager.download()` statements here: https://github.com/EntilZha/nlp/blob/4d46443b65f1f756921db8275594e6af008a1de7/datasets/qanta/qanta.py#L194 with `dl_manager.download_and_extract()` even though you don't extract anything. I would prefer to avoid adding more functions to the MockDataLoadManager and keep it as simple as possible (It's already to complex now IMO). \r\n\r\nCould you check if you can replace the `download()` function? ", "I might be doing something wrong, but swapping those two gives this error:\r\n```\r\n> with open(path) as f:\r\nE IsADirectoryError: [Errno 21] Is a directory: 'datasets/qanta/dummy/mode=first,char_skip=25/2018.4.18/dummy_data-zip-extracted/dummy_data'\r\n\r\nsrc/nlp/datasets/qanta/3d965403133687b819905ead4b69af7bcee365865279b2f797c79f809b4490c3/qanta.py:280: IsADirectoryError\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n```\r\n\r\nSo it seems like the directory name is getting passed. Is this not functioning as expected, or is there some caching happening maybe? I deleted the dummy files and re-ran the import script with no changes. I'm digging a bit in with a debugger, but no clear reason yet", "From what I can tell here: https://github.com/huggingface/nlp/blob/master/tests/utils.py#L115\r\n\r\n1. `data_url` is the correct http link\r\n2. `path_to_dummy_data` is a directory, which is causing the issue\r\n\r\nThat path comes from `download_dummy_data`, which I think assumes that the data comes from the zip file, but isn't aware of individual files. So it seems like it data manager needs to be aware if the url its getting is for a file or a zip/directory, and pass this information along. This might happen in `download_dummy_data`, but probably better to happen in `download_and_extract`? Maybe a simple check to see if `os.path.basename` returns the dummy data zip filename, if not then join paths with the basename of the url?", "I think the dataset script works correctly. Just the dummy data structure seems to be wrong. I will soon add more commands that should make the create of the dummy data easier.\r\n\r\nI'd recommend that you won't concentrate too much on the dummy data.\r\nIf you manage to load the dataset correctly via:\r\n\r\n```python \r\n# use local path to qanta\r\nnlp.load_dataset(\"./datasets/qanta\")\r\n```\r\n\r\nthen feel free to open a PR and we will look into the dummy data problem together :-) \r\n\r\nAlso please make sure that the Version is in the format 1.0.0 (three numbers separated by two points) - not a date. ", "The script loading seems to work fine so I'll work on getting a PR open after a few sanity checks on the data.\r\n\r\nOn version, we currently have it versioned with YYYY.MM.DD scheme so it would be nice to not change that, but will it cause issues?", "> The script loading seems to work fine so I'll work on getting a PR open after a few sanity checks on the data.\r\n> \r\n> On version, we currently have it versioned with YYYY.MM.DD scheme so it would be nice to not change that, but will it cause issues?\r\n\r\nIt would cause issues for sure for the tests....not sure if it would also cause issues otherwise.\r\n\r\nI would prefer to keep the same version style as we have for other models. You could for example simply add version 1.0.0 and add a comment with the date you currently use for the versioning.\r\n\r\n What is your opinion regarding the version here @lhoestq @mariamabarham @thomwolf ? ", "Maybe use the YYYY.MM.DD as the config name ? That's what we are doing for wikipedia", "> Maybe use the YYYY.MM.DD as the config name ? That's what we are doing for wikipedia\r\n\r\nI'm not sure if this will work because the name should be unique and it seems that he has multiple config name in his data with the same version.\r\nAs @patrickvonplaten suggested, I think you can add a comment about the version in the data description.", "Actually maybe our versioning format (inherited from tfds) is too strong for what we use it for?\r\nWe could allow any string maybe?\r\n\r\nI see it more and more like an identifier for the user that we will back with a serious hashing/versioning system.- so we could let the user quite free on it.", "I'm good with either putting it in description, adding it to the config, or loosening version formatting. I mostly don't have a full conceptual grasp of what each identifier ends up meaning in the datasets code so hard to evaluate the best approach.\r\n\r\nFor background, the multiple formats is a consequence of:\r\n\r\n1. Each example is one multi-sentence trivia question\r\n2. For training, its better to treat each sentence as an example\r\n3. For evaluation, should test on: (1) first sentence, (2) full question, and (3) partial questions (does the model get the question right having seen the first half)\r\n\r\nWe use the date format for version since: (1) we expect some degree of updates since new questions come in every year and (2) the timestamp itself matches the Wikipedia dump that it is dependent on (so similar to the Wikipedia dataset).\r\n\r\nperhaps this is better discussed in https://github.com/huggingface/nlp/pull/169 or update title?" ]

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[ "Hi @dpressel, \r\n\r\nthanks for posting your issue! Can you maybe add a complete code snippet that we can copy paste to reproduce the error? For example, I'm not sure where the variable `train_set` comes from in your code and it seems like you are loading multiple datasets at once? ", "Hi, the full example was listed in the PR above, but here is the exact link:\r\n\r\nhttps://github.com/dpressel/mead-baseline/blob/3c1aa3ca062cb23f303ca98ac40b6652b37ee971/api-examples/layers-classify-hf-datasets.py\r\n\r\nThe problem is coming from\r\n```\r\n if cache_file_name is None:\r\n # we create a unique hash from the function, current dataset file and the mapping args\r\n cache_kwargs = {\r\n \"with_indices\": with_indices,\r\n \"batched\": batched,\r\n \"batch_size\": batch_size,\r\n \"remove_columns\": remove_columns,\r\n \"keep_in_memory\": keep_in_memory,\r\n \"load_from_cache_file\": load_from_cache_file,\r\n \"cache_file_name\": cache_file_name,\r\n \"writer_batch_size\": writer_batch_size,\r\n \"arrow_schema\": arrow_schema,\r\n \"disable_nullable\": disable_nullable,\r\n }\r\n cache_file_name = self._get_cache_file_path(function, cache_kwargs)\r\n```\r\nThe cached value is always the same, but I was able to change that by just renaming the function each time which seems to fix the issue.", "Ok, I think @lhoestq has already found a solution :-) Maybe you can chime in @lhoestq ", "This fixed my issue (I think)\r\n\r\nhttps://github.com/dpressel/mead-baseline/commit/48aa8ecde4b307bd3e7dde5fe71e43a1d4769ee1", "> Ok, I think @lhoestq has already found a solution :-) Maybe you can chime in @lhoestq\r\n\r\nOh, awesome! I see the PR, Ill check it out", "The PR should prevent the cache from losing track of the of the dataset type (based on the location of its data). Not sure about your second problem though (cache off).", "Yes, with caching on, it seems to work without the function renaming hack, I mentioned this also in the PR. Thanks!" ]

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[ "Found it. https://github.com/huggingface/nlp/tree/master/datasets" ]

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[ "You can just run: \r\n`val = nlp.load_dataset('squad')` \r\n\r\nif you want to have just the validation script you can also do:\r\n\r\n`val = nlp.load_dataset('squad', split=\"validation\")`", "If you want to load a local dataset, make sure you include a `./` before the folder name. ", "This happens by just doing run all cells on colab ... I assumed the colab example is broken. ", "Oh I see you might have a wrong version of pyarrow install on the colab -> could you try the following. Add these lines to the beginning of your notebook, restart the runtime and run it again:\r\n```\r\n!pip uninstall -y -qq pyarrow\r\n!pip uninstall -y -qq nlp\r\n!pip install -qq git+https://github.com/huggingface/nlp.git\r\n```", "> Oh I see you might have a wrong version of pyarrow install on the colab -> could you try the following. Add these lines to the beginning of your notebook, restart the runtime and run it again:\r\n> \r\n> ```\r\n> !pip uninstall -y -qq pyarrow\r\n> !pip uninstall -y -qq nlp\r\n> !pip install -qq git+https://github.com/huggingface/nlp.git\r\n> ```\r\n\r\nTried, having the same error.", "Can you post a link here of your colab? I'll make a copy of it and see what's wrong", "This should be fixed in the current version of the notebook. You can try it again", "Also see: https://github.com/huggingface/nlp/issues/222", "I am getting this error when running this command\r\n```\r\nval = nlp.load_dataset('squad', split=\"validation\")\r\n```\r\n\r\nFileNotFoundError: [Errno 2] No such file or directory: '/root/.cache/huggingface/datasets/squad/plain_text/1.0.0/dataset_info.json'\r\n\r\nCan anybody help?", "It seems like your download was corrupted :-/ Can you run the following command: \r\n\r\n```\r\nrm -r /root/.cache/huggingface/datasets\r\n```\r\n\r\nto delete the cache completely and rerun the download? ", "I tried the notebook again today and it worked without barfing. 👌 " ]

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[ "Jeez - don't know what happened there :D Should be fixed now! \r\n\r\nThanks a lot for reporting this @tomhosking !", "Hi @patrickvonplaten!\r\n\r\nI'm now getting the below error:\r\n\r\n```\r\n---------------------------------------------------------------------------\r\nTypeError Traceback (most recent call last)\r\n<ipython-input-28-3206959998b9> in <module>\r\n 1 import nlp\r\n 2 \r\n----> 3 dataset = nlp.load_dataset('wmt14')\r\n 4 print(dataset['train'][0])\r\n\r\n~/.local/lib/python3.6/site-packages/nlp/load.py in load_dataset(path, name, version, data_dir, data_files, split, cache_dir, download_config, download_mode, ignore_verifications, save_infos, **config_kwargs)\r\n 507 # Instantiate the dataset builder\r\n 508 builder_instance = builder_cls(\r\n--> 509 cache_dir=cache_dir, name=name, version=version, data_dir=data_dir, data_files=data_files, **config_kwargs,\r\n 510 )\r\n 511 \r\n\r\nTypeError: Can't instantiate abstract class Wmt with abstract methods _subsets\r\n```\r\n\r\n", "To correct this error I think you need the master branch of `nlp`. Can you try to install `nlp` with. `WMT` was not included at the beta release of the library. \r\n\r\nCan you try:\r\n`pip install git+https://github.com/huggingface/nlp.git`\r\n\r\nand check again? ", "That works, thanks :)\r\n\r\nThe WMT datasets are listed in by `list_datasets()` in the beta release on pypi - it would be good to only show datasets that are actually supported by that version?", "Usually, the idea is that a dataset can be added without releasing a new version. The problem in the case of `WMT` was that some \"core\" code of the library had to be changed as well. \r\n\r\n@thomwolf @lhoestq @julien-c - How should we go about this. If we add a dataset that also requires \"core\" code changes, how do we handle the versioning? The moment a dataset is on AWS it will actually be listed with `list_datasets()` in all earlier versions...\r\n\r\nIs there a way to somehow insert the `pip version` to the HfApi() and get only the datasets that were available for this version (at the date of the release of the version) @julien-c ? ", "We plan to have something like a `requirements.txt` per dataset to prevent user from loading dataset with old version of `nlp` or any other libraries. Right now the solution is just to keep `nlp` up to date when you want to load a dataset that leverages the latests features of `nlp`.\r\n\r\nFor datasets that are on AWS but that use features that are not released yet we should be able to filter those from the `list_dataset` as soon as we have the `requirements.txt` feature on (filter datasets that need a future version of `nlp`).\r\n\r\nShall we rename this issue to be more explicit about the problem ?\r\nSomething like `Specify the minimum version of the nlp library required for each dataset` ?", "Closing this one.\r\nFeel free to re-open if you have other questions :)" ]

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[ "I fixed a conflict :) thanks !" ]

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[ "As @yoavgo suggested, there should be the possibility to call a function like nlp.bib that outputs all bibtex ref from the datasets and models actually used and eventually nlp.bib.forreadme that would output the same info + versions numbers so they can be included in a readme.md file.", "Actually, double checking with @mariamabarham, we already have this feature I think.\r\n\r\nIt's like this currently:\r\n```python\r\n>>> from nlp import load_dataset\r\n>>> \r\n>>> dataset = load_dataset('glue', 'cola', split='train')\r\n>>> print(dataset.info.citation)\r\n@article{warstadt2018neural,\r\n title={Neural Network Acceptability Judgments},\r\n author={Warstadt, Alex and Singh, Amanpreet and Bowman, Samuel R},\r\n journal={arXiv preprint arXiv:1805.12471},\r\n year={2018}\r\n}\r\n@inproceedings{wang2019glue,\r\n title={{GLUE}: A Multi-Task Benchmark and Analysis Platform for Natural Language Understanding},\r\n author={Wang, Alex and Singh, Amanpreet and Michael, Julian and Hill, Felix and Levy, Omer and Bowman, Samuel R.},\r\n note={In the Proceedings of ICLR.},\r\n year={2019}\r\n}\r\n\r\nNote that each GLUE dataset has its own citation. Please see the source to see\r\nthe correct citation for each contained dataset.\r\n```\r\n\r\nWhat do you think @dseddah?", "Looks good but why would there be a difference between the ref in the source and the one to be printed? ", "Yes, I think we should remove this warning @mariamabarham.\r\n\r\nIt's probably a relic of tfds which didn't have the same way to access citations. " ]

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[ "If tests are being added, any guidance on where to add tests would be helpful!\r\n\r\nTagging @thomwolf for review", "Looks good to me. Is this compatible with the way we are doing tests right now @patrickvonplaten ?", "If the tests pass it should be fine :-) \r\n\r\n@Bharat123rox could you check whether the tests pass locally via: \r\n`pytest tests/test_dataset_common.py::LocalDatasetTest::test_load_dataset_glue`", "The test fails with an `AssertionError` because the name is not being passed to kwargs, however I'm not sure how to do that, because only the config file is being passed to the tests of all datasets?\r\n\r\nI'm guessing this is the corresponding code:\r\nhttps://github.com/huggingface/nlp/blob/2b3621bb5c78caf02c5a969b8e67fa0c145da4e6/tests/test_dataset_common.py#L141-L143\r\n\r\nAnd these are the logs:\r\n```\r\n___________________ DatasetTest.test_load_dataset_local_glue ___________________\r\n\r\nself = <tests.test_dataset_common.DatasetTest testMethod=test_load_dataset_local_glue>\r\ndataset_name = 'glue'\r\n\r\n @local\r\n def test_load_dataset_local(self, dataset_name):\r\n # test only first config\r\n if \"/\" in dataset_name:\r\n logging.info(\"Skip {} because it is not a canonical dataset\")\r\n return\r\n\r\n configs = self.dataset_tester.load_all_configs(dataset_name, is_local=True)[:1]\r\n> self.dataset_tester.check_load_dataset(dataset_name, configs, is_local=True)\r\n\r\ntests/test_dataset_common.py:200:\r\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\r\ntests/test_dataset_common.py:74: in check_load_dataset\r\n dataset_builder = dataset_builder_cls(config=config, cache_dir=processed_temp_dir)\r\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _\r\n\r\nself = <nlp.datasets.glue.fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597.glue.Glue object at 0x135c0ea90>\r\nargs = ()\r\nkwargs = {'cache_dir': '/var/folders/r6/mnw5ntvn5y72j7d4s1fm273m0000gn/T/tmpa9rpq3tl', 'config': GlueConfig(name='cola', versio...linguistic theory. Each example is a sequence of words annotated\\nwith whether it is a grammatical English sentence.')}\r\n\r\n def __init__(self, *args, **kwargs):\r\n> assert ('name' in kwargs and kwargs['name'] is not None), \"Glue has to be called with a configuration name\"\r\nE AssertionError: Glue has to be called with a configuration name\r\n\r\n/usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.py:139: AssertionError\r\n----------------------------- Captured stderr call -----------------------------\r\nINFO:nlp.load:Checking ./datasets/glue/glue.py for additional imports.\r\nINFO:filelock:Lock 5209998288 acquired on ./datasets/glue/glue.py.lock\r\nINFO:nlp.load:Found main folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue\r\nINFO:nlp.load:Found specific version folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597\r\nINFO:nlp.load:Found script file from ./datasets/glue/glue.py to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.py\r\nINFO:nlp.load:Found dataset infos file from ./datasets/glue/dataset_infos.json to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/dataset_infos.json\r\nINFO:nlp.load:Found metadata file for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.json\r\nINFO:filelock:Lock 5209998288 released on ./datasets/glue/glue.py.lock\r\nINFO:nlp.load:Checking ./datasets/glue/glue.py for additional imports.\r\nINFO:filelock:Lock 5196802640 acquired on ./datasets/glue/glue.py.lock\r\nINFO:nlp.load:Found main folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue\r\nINFO:nlp.load:Found specific version folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597\r\nINFO:nlp.load:Found script file from ./datasets/glue/glue.py to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.py\r\nINFO:nlp.load:Found dataset infos file from ./datasets/glue/dataset_infos.json to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/dataset_infos.json\r\nINFO:nlp.load:Found metadata file for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.json\r\nINFO:filelock:Lock 5196802640 released on ./datasets/glue/glue.py.lock\r\n------------------------------ Captured log call -------------------------------\r\nINFO nlp.load:load.py:157 Checking ./datasets/glue/glue.py for additional imports.\r\nINFO filelock:filelock.py:274 Lock 5209998288 acquired on ./datasets/glue/glue.py.lock\r\nINFO nlp.load:load.py:320 Found main folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue\r\nINFO nlp.load:load.py:333 Found specific version folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597\r\nINFO nlp.load:load.py:346 Found script file from ./datasets/glue/glue.py to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.py\r\nINFO nlp.load:load.py:356 Found dataset infos file from ./datasets/glue/dataset_infos.json to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/dataset_infos.json\r\nINFO nlp.load:load.py:367 Found metadata file for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.json\r\nINFO filelock:filelock.py:318 Lock 5209998288 released on ./datasets/glue/glue.py.lock\r\nINFO nlp.load:load.py:157 Checking ./datasets/glue/glue.py for additional imports.\r\nINFO filelock:filelock.py:274 Lock 5196802640 acquired on ./datasets/glue/glue.py.lock\r\nINFO nlp.load:load.py:320 Found main folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue\r\nINFO nlp.load:load.py:333 Found specific version folder for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597\r\nINFO nlp.load:load.py:346 Found script file from ./datasets/glue/glue.py to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.py\r\nINFO nlp.load:load.py:356 Found dataset infos file from ./datasets/glue/dataset_infos.json to /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/dataset_infos.json\r\nINFO nlp.load:load.py:367 Found metadata file for dataset ./datasets/glue/glue.py at /usr/local/lib/python3.7/site-packages/nlp/datasets/glue/fa7c9f982200144186b2831060b54199cf028e4bbdc5f40acd339ee343342597/glue.json\r\nINFO filelock:filelock.py:318 Lock 5196802640 released on ./datasets/glue/glue.py.lock\r\n```", "Closing as #130 is fixed !" ]

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[ "The PR looks awesome! \r\nSince you have already added a dataset I imagine the tests as described in 5. of https://github.com/huggingface/nlp/blob/master/CONTRIBUTING.md#how-to-add-a-dataset all pass, right @stefan-it ?\r\n\r\nI think we are then good to merge this :-) @lhoestq ", "Nice !\r\n\r\nOne thing though: I saw that you copied the `dataset_info.json` (one split info), which is different from the `dataset_infos.json` (split infos of all configs) that we expect.\r\n\r\nCould you generate the `dataset_infos.json` file using this command please ?\r\n```\r\npython nlp-cli test datasets/wnut_17 --save_infos --all_configs\r\n```", "Hi @patrickvonplaten I just rebased onto latest `master` version and executed the commands. All tests passed then :)\r\n\r\n@lhoestq thanks for that hint! I've generated and added the `dataset_infos.json` and deleted `dataset_info.json`.", "Awesome ! I guess it's ready to be merged now :)" ]

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[ "@AlphaMycelium the Ubuntu Dialogue Corpus [version 2]( https://github.com/rkadlec/ubuntu-ranking-dataset-creator) is added. Note that it requires a manual download by following the download instructions in the [repos]( https://github.com/rkadlec/ubuntu-ranking-dataset-creator).\r\nMaybe we can close this issue for now?" ]

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[ "Same error for dataset 'wiki40b'", "Should be fixed on master :)" ]

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[ "Indeed. Probably we will want to have a similar method directly in the library", "Related: #166 " ]

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[ "There was an issue in the format, thanks.\r\nNow you can do\r\n```python3\r\nsquad_dset = nlp.load_dataset(\"squad\")\r\nsquad_metric = nlp.load_metric(\"/Users/quentinlhoest/Desktop/hf/nlp-bis/metrics/squad\")\r\npredictions = [\r\n {\"id\": v[\"id\"], \"prediction_text\": v[\"answers\"][\"text\"][0]} # take first possible answer\r\n for v in squad_dset[\"validation\"]\r\n]\r\nsquad_metric.compute(predictions, squad_dset[\"validation\"])\r\n```\r\n\r\nand the expected format is \r\n```\r\nArgs:\r\n predictions: List of question-answers dictionaries with the following key-values:\r\n - 'id': id of the question-answer pair as given in the references (see below)\r\n - 'prediction_text': the text of the answer\r\n references: List of question-answers dictionaries with the following key-values:\r\n - 'id': id of the question-answer pair (see above),\r\n - 'answers': a Dict {'text': list of possible texts for the answer, as a list of strings}\r\n```" ]

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[ "Same for the dataset_infos.json at the project root no ?", "Sorry guys, I haven't noticed. Thank you for mentioning it." ]

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