Token Classification
Token classification is the task of classifying each token in a sequence. This can be used for Named Entity Recognition (NER), Part-of-Speech (POS) tagging, and more. Get your data ready in proper format and then with just a few clicks, your state-of-the-art model will be ready to be used in production.
Data Format
The data should be in the following CSV format:
tokens,tags
"['I', 'love', 'Paris']", "['O', 'O', 'B-LOC']"
"['I', 'live', 'in', 'New', 'York']", "['O', 'O', 'O', 'B-LOC', 'I-LOC']"
.
.
.
or you can also use JSONL format:
{"tokens": ["I", "love", "Paris"], "tags": ["O", "O", "B-LOC"]}
{"tokens": ["I", "live", "in", "New", "York"], "tags": ["O", "O", "O", "B-LOC", "I-LOC"]}
.
.
.
As you can see, we have two columns in the CSV file. One column is the tokens and the other is the tags. Both the columns are stringified lists! The tokens column contains the tokens of the sentence and the tags column contains the tags for each token.
If your CSV is huge, you can divide it into multiple CSV files and upload them separately. Please make sure that the column names are the same in all CSV files.
One way to divide the CSV file using pandas is as follows:
import pandas as pd
# Set the chunk size
chunk_size = 1000
i = 1
# Open the CSV file and read it in chunks
for chunk in pd.read_csv('example.csv', chunksize=chunk_size):
# Save each chunk to a new file
chunk.to_csv(f'chunk_{i}.csv', index=False)
i += 1
Columns
Your CSV/JSONL dataset must have two columns: tokens
and tags
.
Parameters
❯ autotrain token-classification --help
usage: autotrain <command> [<args>] token-classification [-h] [--train] [--deploy] [--inference] [--username USERNAME]
[--backend {local-cli,spaces-a10gl,spaces-a10gs,spaces-a100,spaces-t4m,spaces-t4s,spaces-cpu,spaces-cpuf}]
[--token TOKEN] [--push-to-hub] --model MODEL --project-name PROJECT_NAME
[--data-path DATA_PATH] [--train-split TRAIN_SPLIT] [--valid-split VALID_SPLIT]
[--batch-size BATCH_SIZE] [--seed SEED] [--epochs EPOCHS]
[--gradient_accumulation GRADIENT_ACCUMULATION] [--disable_gradient_checkpointing]
[--lr LR] [--log {none,wandb,tensorboard}] [--tokens-column TOKENS_COLUMN]
[--tags-column TAGS_COLUMN] [--max-seq-length MAX_SEQ_LENGTH] [--warmup-ratio WARMUP_RATIO]
[--optimizer OPTIMIZER] [--scheduler SCHEDULER] [--weight-decay WEIGHT_DECAY]
[--max-grad-norm MAX_GRAD_NORM] [--logging-steps LOGGING_STEPS]
[--evaluation-strategy {steps,epoch,no}] [--save-total-limit SAVE_TOTAL_LIMIT]
[--save-strategy {steps,epoch,no}] [--auto-find-batch-size]
[--mixed-precision {fp16,bf16,None}]
✨ Run AutoTrain Token Classification
options:
-h, --help show this help message and exit
--train Command to train the model
--deploy Command to deploy the model (limited availability)
--inference Command to run inference (limited availability)
--username USERNAME Hugging Face Hub Username
--backend {local-cli,spaces-a10gl,spaces-a10gs,spaces-a100,spaces-t4m,spaces-t4s,spaces-cpu,spaces-cpuf}
Backend to use: default or spaces. Spaces backend requires push_to_hub & username. Advanced users only.
--token TOKEN Your Hugging Face API token. Token must have write access to the model hub.
--push-to-hub Push to hub after training will push the trained model to the Hugging Face model hub.
--model MODEL Base model to use for training
--project-name PROJECT_NAME
Output directory / repo id for trained model (must be unique on hub)
--data-path DATA_PATH
Train dataset to use. When using cli, this should be a directory path containing training and validation data in appropriate
formats
--train-split TRAIN_SPLIT
Train dataset split to use
--valid-split VALID_SPLIT
Validation dataset split to use
--batch-size BATCH_SIZE
Training batch size to use
--seed SEED Random seed for reproducibility
--epochs EPOCHS Number of training epochs
--gradient_accumulation GRADIENT_ACCUMULATION
Gradient accumulation steps
--disable_gradient_checkpointing
Disable gradient checkpointing
--lr LR Learning rate
--log {none,wandb,tensorboard}
Use experiment tracking
--tokens-column TOKENS_COLUMN
Tokens column to use. Must be a stringified list of tokens if using a CSV file. Default is 'tokens'.
--tags-column TAGS_COLUMN
Tags column to use. Must be a stringified list of tags if using a CSV file. Default is 'tags'.
--max-seq-length MAX_SEQ_LENGTH
Set the maximum sequence length (number of tokens) that the model should handle in a single input. Longer sequences are
truncated. Affects both memory usage and computational requirements. Default is 128 tokens.
--warmup-ratio WARMUP_RATIO
Define the proportion of training to be dedicated to a linear warmup where learning rate gradually increases. This can help
in stabilizing the training process early on. Default ratio is 0.1.
--optimizer OPTIMIZER
Choose the optimizer algorithm for training the model. Different optimizers can affect the training speed and model
performance. 'adamw_torch' is used by default.
--scheduler SCHEDULER
Select the learning rate scheduler to adjust the learning rate based on the number of epochs. 'linear' decreases the
learning rate linearly from the initial lr set. Default is 'linear'. Try 'cosine' for a cosine annealing schedule.
--weight-decay WEIGHT_DECAY
Set the weight decay rate to apply for regularization. Helps in preventing the model from overfitting by penalizing large
weights. Default is 0.0, meaning no weight decay is applied.
--max-grad-norm MAX_GRAD_NORM
Specify the maximum norm of the gradients for gradient clipping. Gradient clipping is used to prevent the exploding gradient
problem in deep neural networks. Default is 1.0.
--logging-steps LOGGING_STEPS
Determine how often to log training progress. Set this to the number of steps between each log output. -1 determines logging
steps automatically. Default is -1.
--evaluation-strategy {steps,epoch,no}
Specify how often to evaluate the model performance. Options include 'no', 'steps', 'epoch'. 'epoch' evaluates at the end of
each training epoch by default.
--save-total-limit SAVE_TOTAL_LIMIT
Limit the total number of model checkpoints to save. Helps manage disk space by retaining only the most recent checkpoints.
Default is to save only the latest one.
--save-strategy {steps,epoch,no}
Determine the strategy for saving model checkpoints. Possible values are 'no', 'steps', 'epoch'. 'epoch' saves a checkpoint
at the end of each epoch by default.
--auto-find-batch-size
Enable automatic batch size determination based on your hardware capabilities. When set, it tries to find the largest batch
size that fits in memory.
--mixed-precision {fp16,bf16,None}
Choose the precision mode for training to optimize performance and memory usage. Options are 'fp16', 'bf16', or None for
default precision. Default is None.