FrenchMedMCQA : Multiple-choice question answering on pharmacology exams using BART-base, Wikipedia external knowledge and BM25 retriever

Corpora: FrenchMedMCQA
Model: BART Base
Number of Epochs: 30

People Involved

Affiliations

LIA, NLP team, Avignon University, Avignon, France.
LS2N, TALN team, Nantes University, Nantes, France.
CHU Nantes, Nantes University, Nantes, France.

Demo: How to use in HuggingFace Transformers

Requires Transformers: pip install transformers

from datasets import load_dataset
from transformers import AutoTokenizer, AutoModelForSequenceClassification, pipeline

path_model = "qanastek/FrenchMedMCQA-BART-base-Wikipedia-BM25"

tokenizer = AutoTokenizer.from_pretrained(path_model)
model = AutoModelForSequenceClassification.from_pretrained(path_model)

pipeline = pipeline(task="summarization", model=model, tokenizer=tokenizer) # CPU

dataset  = load_dataset("qanastek/FrenchMedMCQA")["test"]

for e in dataset:
    prediction = pipeline(source, truncation=True, max_length=900)[0]["summary_text"]

Output:

Training data

The questions and their associated candidate answer(s) were collected from real French pharmacy exams on the remede website. Questions and answers were manually created by medical experts and used during examinations. The dataset is composed of 2,025 questions with multiple answers and 1,080 with a single one, for a total of 3,105 questions. Each instance of the dataset contains an identifier, a question, five options (labeled from A to E) and correct answer(s). The average question length is 14.17 tokens and the average answer length is 6.44 tokens. The vocabulary size is of 13k words, of which 3.8k are estimated medical domain-specific words (i.e. a word related to the medical field). We find an average of 2.49 medical domain-specific words in each question (17 % of the words) and 2 in each answer (36 % of the words). On average, a medical domain-specific word is present in 2 questions and in 8 answers.

# Answers	Training	Validation	Test	Total
1	595	164	321	1,080
2	528	45	97	670
3	718	71	141	930
4	296	30	56	382
5	34	2	7	43
Total	2171	312	622	3,105

Evaluation results

The test corpora used for this evaluation is available on Github.

Architecture	Hamming	EMR	Hamming	EMR	Hamming	EMR	Hamming	EMR	Hamming	EMR
BioBERT V1.1	36.19	15.43	38.72	16.72	33.33	14.14	35.13	16.23	34.27	13.98
PubMedBERT	33.98	14.14	34.00	13.98	35.66	15.59	33.87	14.79	35.44	14.79
CamemBERT-base	36.24	16.55	34.19	14.46	34.78	15.43	34.66	14.79	34.61	14.95
XLM-RoBERTa-base	37.92	17.20	31.26	11.89	35.84	16.07	32.47	14.63	33.00	14.95
BART-base	31.93	15.91	34.98	18.64	33.80	17.68	29.65	12.86	34.65	18.32

BibTeX Citations

Please cite the following paper when using this model.

FrenchMedMCQA corpus and linked tools:

@unpublished{labrak:hal-03824241,
  TITLE = {{FrenchMedMCQA: A French Multiple-Choice Question Answering Dataset for Medical domain}},
  AUTHOR = {Labrak, Yanis and Bazoge, Adrien and Dufour, Richard and Daille, B{\'e}atrice and Gourraud, Pierre-Antoine and Morin, Emmanuel and Rouvier, Mickael},
  URL = {https://hal.archives-ouvertes.fr/hal-03824241},
  NOTE = {working paper or preprint},
  YEAR = {2022},
  MONTH = Oct,
  PDF = {https://hal.archives-ouvertes.fr/hal-03824241/file/LOUHI_2022___QA-3.pdf},
  HAL_ID = {hal-03824241},
  HAL_VERSION = {v1},
}

HuggingFace's Transformers :

@misc{https://doi.org/10.48550/arxiv.1910.03771,
    doi = {10.48550/ARXIV.1910.03771},
    url = {https://arxiv.org/abs/1910.03771},
    author = {Wolf, Thomas and Debut, Lysandre and Sanh, Victor and Chaumond, Julien and Delangue, Clement and Moi, Anthony and Cistac, Pierric and Rault, Tim and Louf, Rémi and Funtowicz, Morgan and Davison, Joe and Shleifer, Sam and von Platen, Patrick and Ma, Clara and Jernite, Yacine and Plu, Julien and Xu, Canwen and Scao, Teven Le and Gugger, Sylvain and Drame, Mariama and Lhoest, Quentin and Rush, Alexander M.},
    keywords = {Computation and Language (cs.CL), FOS: Computer and information sciences, FOS: Computer and information sciences},
    title = {HuggingFace's Transformers: State-of-the-art Natural Language Processing},
    publisher = {arXiv},
    year = {2019}, 
    copyright = {arXiv.org perpetual, non-exclusive license}
}

Acknowledgment

This work was financially supported by Zenidoc, the DIETS project financed by the Agence Nationale de la Recherche (ANR) under contract ANR-20-CE23-0005 and the ANR AIBy4 (ANR-20-THIA-0011).