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Attentively Embracing Noise for Robust Latent Representation in BERT (COLING 2020)

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Code for the paper titled "Attentively Embracing Noise for Robust Latent Representation in BERT" (To appear at COLING 2020, Dec 8-13 2020)

About

EmbraceBERT: attentive embracement layer for BERT encoded tokens for improved robustness in noisy text classification tasks.

Proposed model

Embracement layers

  • Evaluated on 3 settings:
    1. Trained and tested with complete data
    2. Trained with complete data and tested with incomplete data
    3. Trained and tested with incomplete data

Contents

RequirementsHow to UseResultsHow to Cite

Requirements

Tested with Python 3.6.8, PyTorch 1.0.1.post2, CUDA 10.1

pip install --upgrade pip
pip install --default-timeout=1000 torch==1.0.1.post2 -f https://download.pytorch.org/whl/torch_stable.html
pip install -r requirements.txt
python -m spacy download en

How to Use

1. Dataset

Ongoing: Ask Ubuntu, Web Applications Corpora

Data with STT error repository

2. Train and eval model

  • Setting 1: clean data

    • Proposed: ./scripts/settings_1run/run_proposed_setting1_clean.sh
    • Baseline: ./scripts/settings_1run/run_baseline_setting1_clean.sh
  • Setting 3: noisy data

    • Proposed: ./scripts/settings_1run/run_proposed_setting3_noisy.sh
    • Baseline: ./scripts/settings_1run/run_baseline_setting3_noisy.sh

Results

Results chatbot

Ablation study on: ChatbotSnips

Ongoing: AskUbuntuWebApplications

Korean: Chatbot

Getting paper's ablation study

The scripts mentioned here will run the model 10 times. If you wish to run it only once, please change the SEED parameter in the script.

A. Train Model (settings 1 and 3)

  • Proposed: all tokens (BERT, EBERT, EBERTkvq)

    # BERT with tokens
    ./scripts/[DIR_SETTING_1_OR_3]/run_bertWithTokens_classifier_seeds.sh
    # EBERT
    ./scripts/[DIR_SETTING_1_OR_3]/run_embracebert_classifier_seeds.sh
    # EBERTkvq
    ./scripts/[DIR_SETTING_1_OR_3]/run_embracebert_multiheadattention_bertkvq_classifier_seeds.sh
    
  • Baseline (BERT)

    ./scripts/[DIR_SETTING_1_OR_3]/run_bert_classifier_seeds.sh
    

B. Test model with noisy data (setting 2)

./scripts/[DIR_SETTING_2]/run_eval_with_incomplete_data.sh

Modify script with the path and type of your model

Additional information

Get mean and std from N runs

Run python script in the get_results directory.

Calculate the number of parameters

--do_calculate_num_params

# BERT
python run_classifier.py --seed 1 --task_name chatbot_intent --model_type $MODEL_NAME --model_name_or_path bert-base-uncased --logging_steps 1 --do_calculate_num_params --do_lower_case --data_dir data/intent_processed/nlu_eval/chatbotcorpus/ --max_seq_length 128 --per_gpu_eval_batch_size=1 --per_gpu_train_batch_size=8 --learning_rate 2e-5 --num_train_epochs 3.0 --output_dir ./results/debug_num_params/ --overwrite_output_dir --overwrite_cache --save_best --log_dir ./runs/debug_num_params
# EBERT
python run_classifier.py --seed 1 --task_name chatbot_intent --model_type $MODEL_NAME2 --p $P_TYPE --dimension_reduction_method $DIM_REDUCTION_METHOD --model_name_or_path bert-base-uncased --logging_steps 1 --do_calculate_num_params --do_lower_case --data_dir data/intent_processed/nlu_eval/chatbotcorpus/ --max_seq_length 128 --per_gpu_eval_batch_size=1 --per_gpu_train_batch_size=8 --learning_rate 2e-5 --num_train_epochs 3.0 --output_dir ./results/debug_num_params/ --overwrite_output_dir --overwrite_cache --save_best --log_dir ./runs/debug_num_params
Parameters Options
MODEL_NAME [bert, bertwithatt, bertwithattclsprojection, bertwithprojection, bertwithprojectionatt]
MODEL_NAME2 [embracebert, embracebertconcatatt, embracebertwithkeyvaluequery, embracebertwithkeyvaluequeryconcatatt]
DIM_REDUCTION_METHOD [attention, projection]
P_TYPE [multinomial, attention_clsquery_weights]

Generated files

File Description
checkpoint-best-${EPOCH_NUMBER} Directory with saved model
eval_results.json JSONified train/eval information
eval_results.txt Train/eval information: eval accuracy and loss, global_step and train loss

Acknowledgement

In case you wish to use this code, please cite [To be update]:

@inproceedings{sergio2020ebert_coling,
  author    = {Sergio, G. C. and Moirangthem, D. S. and Lee, M.},
  title     = {Attentively Embracing Noise for Robust Latent Representation in BERT},
  year      = {2020},
  booktitle = {The 28th International Conference on Computational Linguistics (COLING 2020)},
  organization={ACL},
  DOI = {},
}

Please email me at gwena.cs@gmail.com with any requests or questions.

Code based on HuggingFace's repository, work based on BERT and EmbraceNet.

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