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Article Details

Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

Long Short-Term Memory for Non-Factoid Answer Selection in Indonesian Question Answering System for Health Information

Author 1: Retno Kusumaningrum
Author 2: Alfi F. Hanifah
Author 3: Khadijah Khadijah
Author 4: Sukmawati N. Endah
Author 5: Priyo S. Sasongko

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Digital Object Identifier (DOI) : 10.14569/IJACSA.2023.0140246

Article Published in International Journal of Advanced Computer Science and Applications(IJACSA), Volume 14 Issue 2, 2023.

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Abstract: Providing reliable health information to a community can help raise awareness of the dangers of diseases, their causes, methods of prevention, and treatment. Indonesians are facing various health problems partly due to the lack of health information; hence, the community needs media that can effectively provide reliable health information, namely a question answering (QA) system. The frequently asked questions are non-factoid questions. The development of answer selection based on the classical approach requires distinctive engineering features, linguistic tools, or external resources. It can be solved using deep learning approach such as Convolutional Neural Networks (CNN). However, this model cannot capture the sequence of words in both questions and answers. Therefore, this study aims to implement a long short-term memory (LSTM) model to effectively exploit long-range sequential context information for an answer selection task. In addition, this study analyses various hyper-parameters of Word2Vec and LSTM, such as the dimension, context window, dropout, hidden unit, learning rate, and margin; the corresponding values that yield the best mean reciprocal rank (MRR) and mean average precision (MAP) are found to be 300, 15, 0.25, 100, 0.01, and 0.1, respectively. The best model yields MAP and MRR values of 82.05% and 91.58%, respectively. These results experienced an increase in MAP and MRR of 18.68% and 46.11%, respectively, compared to CNN as the baseline model.

Keywords: Answer selection; health information; long short-term memory; LSTM; question answering

Retno Kusumaningrum, Alfi F. Hanifah, Khadijah Khadijah, Sukmawati N. Endah and Priyo S. Sasongko, “Long Short-Term Memory for Non-Factoid Answer Selection in Indonesian Question Answering System for Health Information” International Journal of Advanced Computer Science and Applications(IJACSA), 14(2), 2023. http://dx.doi.org/10.14569/IJACSA.2023.0140246

@article{Kusumaningrum2023,
title = {Long Short-Term Memory for Non-Factoid Answer Selection in Indonesian Question Answering System for Health Information},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2023.0140246},
url = {http://dx.doi.org/10.14569/IJACSA.2023.0140246},
year = {2023},
publisher = {The Science and Information Organization},
volume = {14},
number = {2},
author = {Retno Kusumaningrum and Alfi F. Hanifah and Khadijah Khadijah and Sukmawati N. Endah and Priyo S. Sasongko}
}


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