SAS: Self-Augmentation Strategy for Language Model Pre-training

Overview

SAS: Self-Augmentation Strategy for Language Model Pre-training

This repository contains the official pytorch implementation for the paper "SAS: Self-Augmentation Strategy for Language Model Pre-training" based on Huggingface transformers version 4.3.0.

Only the SAS without the disentangled attention mechanism is released for now. To be updated.

graph

File structure

  • train.py: The file for pre-training.
  • run_glue.py: The file for finetuning.
  • models
    • modeling_sas.py: The main algorithm for the SAS.
    • trainer_sas.py: It is inherited from Huggingface transformers. It is mainly modified for data processing.
  • utils: It includes all the utilities.
    • data_collator_sas.py: It includes the details about self-augmentations.
  • The rest of codes are supportive.

How to

Download and Install

  • Clone this repository.
  • Download dataset for wiki-corpus. Store it to data folder. Currently, we only provide a trail data with 1 million sentence. Full dataset can be pre-processed according to BERT. Detail to be released.
  • (Optional) Create an environment through conda by the provided environment.yml
    • You can also manually install the package:
      • Python==3.9, pytorch==1.10.0, transformers==4.3.0, etc.
    # Clone package
    git clone [email protected]:fei960922/SAS-Self-Augmentation-Strategy.git
    cd SAS-Self-Augmentation-Strategy

    # Establish the environment.
    conda env create -f environment.yml 
    conda activate cssl

    # Download dataset and checkpoint
    wget http://www.stat.ucla.edu/~yifeixu/sas/wiki_corpus_1M.npy

Train from stractch

    # Run default setting 
    bash script/pretrain.sh

    # Run custom setting
    python train.py

    # Starting from checkpoint 
    python train.py --start_from_checkpoint 1 --pretrain_path {PATH_TH_CHECKPOINT}

Caclulate GLUE scores

    # By running this bash, GLUE dataset will be automatically downloaded.
    bash finetune.sh MNLI 0 sas-base output_dir 5e-5 32 4 42
    bash finetune.sh MNLI 0 sas-small output_dir 1e-4 32 4 42
Owner
Alibaba
Alibaba Open Source
Alibaba
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