README.md

---
language:
- en
license: apache-2.0
datasets:
- glue
metrics:
- accuracy
model-index:
- name: t5-base-finetuned-mnli
  results:
  - task:
      name: Text Classification
      type: text-classification
    dataset:
      name: GLUE MNI
      type: glue
      args: mnli
    metrics:
    - name: Accuracy
      type: accuracy
      value: 0.8567
---


# T5-base-finetuned-mnli

<!-- Provide a quick summary of what the model is/does. -->

This model is T5 fine-tuned on GLUE MNLI dataset. It acheives the following results on the **validation-matched** set
- Accuracy: 0.8567


## Model Details
T5 is an encoder-decoder model pre-trained on a multi-task mixture of unsupervised and supervised tasks and for which each task is converted into a text-to-text format. 

## Training procedure

### Tokenization
Since, T5 is a text-to-text model, the labels of the dataset are converted as follows:
For each example, a sentence as been formed as **"mnli premise: " + mnli_premise + "hypothesis: " + mnli_hypothesis** and fed to the tokenizer to get the **input_ids** and **attention_mask**.
For each label, target is choosen as **"entailment"** if label is 0, else it is **"neutral"** if label is 1, else it is **"contradiction"**  and tokenized to get **input_ids** and **attention_mask** . 
  During training, these inputs_ids having **pad** token are replaced with -100 so that loss is not calculated for them. Then these input ids are given as labels, and above attention_mask of labels
  is given as decoder attention mask.

### Training hyperparameters

The following hyperparameters were used during training:
- learning_rate: 3e-4
- train_batch_size: 8
- eval_batch_size: 8
- seed: 42
- optimizer: epsilon=1e-08
- num_epochs: 2

### Training results


|Epoch | Training Loss | Validation Matched Accuracy |
|:----:|:-------------:|:-------------------:|
|   1  |    0.1661     | 0.8404             |
|   2  |    0.1016     | 0.8567             |