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CODAH Dataset

The COmmonsense Dataset Adversarially-authored by Humans (CODAH) is an evaluation set for commonsense question-answering in the sentence completion style of SWAG. As opposed to other automatically generated NLI datasets, CODAH is adversarially constructed by humans who can view feedback from a pre-trained model and use this information to design challenging commonsense questions. Our experimental results show that CODAH questions present a complementary extension to the SWAG dataset, testing additional modes of common sense

We are releasing the original dataset used in the CODAH paper experiments, a total of 2776 entires in the final CODAH dataset (with 25 duplicates removed). Questions are tagged with categories indicating types of common sense tested by the question.

The CODAH dataset is made available under the Open Data Commons Attribution License: http://opendatacommons.org/licenses/by/1.0/

Data Format

The current CODAH dataset is available in data/full_data.tsv.

• Column 1: Concatenation of single letter question categorizations based on the following coding system (details of the categories described in the paper):
  • Idioms (i)
  • Reference (r)
  • Polysemy (p)
  • Negation (n)
  • Quantitative (q)
  • Others (o)
• Column 2: Question prompt
• Column 3-6: Candidate commonsense answers
• Column 7: Correct answer label

Code

The experiments can be run with run_cv.py (note: this script expects the Python 3 executable to be invokable as python3). However, a few steps need to be taken first:

1. The data is expected to be formatted into CV folds in the directories ./gitignore/data/altsizes/codah_XX, for each XX in {20, 40, 60, 80} (representing 20%, 40%, 60%, 80% of the data being used for training). Each codah_XX directory should contain five folders named fold0, fold1, fold2, fold3, and fold4. Each of those foldX directories should contain train.tsv and test.tsv, as well as five more sub-directories fold0, ..., fold4 for the sub-folds (CV over the train set), and each sub-fold should have train.tsv and test.tsv files as well.
2. The BERT and GPT models need to be fine-tuned on the SWAG training set and saved in ./gitignore/saved_models/swag_bert_for_cv/ (or swag_gpt1_for_cv as appropriate).

After completing these steps, python3 run_cv.py will run the experiments and print a summary of the results (this may take several weeks depending on available hardware).

Paper

Details of the dataset can be found in this paper: https://www.aclweb.org/anthology/W19-2008.pdf

Bibtex:

@inproceedings{chen2019codah,
  title={CODAH: An Adversarially-Authored Question Answering Dataset for Common Sense},
  author={Chen, Michael and D'Arcy, Mike and Liu, Alisa and Fernandez, Jared and Downey, Doug},
  booktitle={Proceedings of the 3rd Workshop on Evaluating Vector Space Representations for NLP},
  pages={63--69},
  year={2019}
}