BigScience Evaluation

Code and data for the BigScience Evaluation WG.

Upcoming Milestones for Contributors

• September 1, 2021: Eval Engineering Subgroup release toy tasks/dummy code to define API
• September 1, 2021: New task-based subgroups established and begin work
• October 1, 2021: Finalize GitHub with all data and scripts for generating raw evaluation results
• October 15, 2021: General meeting to discuss longer research project proposals for fall/spring
• October 15, 2021: Form subgroup on data presentation/visualization to create final report card

Quickstart

To benchmark a baseline GPT-2 model with WMT and TyDiQA datasets on GPU, run

python3 -m evaluation.eval \
    --model_name_or_path gpt2 \
    --eval_tasks wmt tydiqa_secondary \
    --device cuda \
    --output_dir outputs

Note: For toxicity dataset, you have to download the dataset manually from Kaggle here and also pass the data_dir argument to the folder.

Setup

1. Create virtual environment (one-time).

   python3 -m venv venv # create a virtual environment called 'venv'
   

2. Activate the virtual environment.

   source venv/bin/activate
   

3. Install package requirements.

   python3 -m pip install -r requirements.txt
   python3 -m pip install -r requirements-dev.txt
   

Tasks

This project plans to support all datasets listed under docs/datasets.md. The sections below detail task-independent inner-workings of this repository.

AutoTask

Every task/dataset lives as a submodule within evaluation.tasks. The core of these submodules inherit from evaluation.tasks.auto_task.AutoTask, which is a base class that houses all abstract functions, as well has holds model, tokenizer, and task_config as its attributes.

AutoTask makes it incredibly easy to load any dataset for a benchmark. The basic signature is

task = AutoTask.from_task_name(
    "task_name", model, tokenizer, device, english_only
)

Alternatively, if the model has to be recreated for each task, a task object can be created from string specifications.

task = AutoTask.from_spec(
    "task_name", 
    "model_name_or_path", 
    "tokenizer_name",
    device,
    english_only,
    data_dir: Optional
)

Evaluation

Every AutoTask subclass has a .evaluate() function wherein all evaluation logic resides, i.e. loading the dataset (and the dataloader, if necessary), and computing reporting metrics. At the end of the evaluation, metrics are saved as a class attribute in task.metrics. For more details on the full pipeline, refer to the main evaluation script, evaluation/eval.py.

Contributing

Refer to CONTRIBUTING.md.