A Method For Answer Selection Using DistilBERT And Important Words

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Mozafari Jamshid; Fatemi Afsaneh; MORADI PARHAM

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Seminar: INTERNATIONAL CONFERENCE ON WEB RESEARCH
Year:2020 | Issue:6

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Title

A Method For Answer Selection Using DistilBERT And Important Words

Author(s)

Mozafari Jamshid | Fatemi Afsaneh | MORADI PARHAM

Keywords

Question answering

Answer selection

Language model

Question analysis

Deep learning

Abstract

Question answering is a hot topic in artificial intelligence and has many real-world applications. This field aims at generating an answer to the user’ s question by analyzing a massive volume of text documents. Answer selection is a significant part of a Question answering system and attempts to extract the most relevant answers to the user’ s question from the candidate answers pool. Recently, researchers have attempted to resolve the Answer selection task by using deep neural networks. They first employed the recurrent neural networks and then gradually migrated to convolutional neural networks. Nevertheless, the use of Language models, which is implemented by deep neural networks, has recently been considered. In this research, the DistilBERT Language model was employed as the Language model. The outputs of the Question analysis part and Expected Answer Extraction component are also applied with [CLS] token output as the final feature vector. This operation leads to improving the method performance. Several experiments are performed to evaluate the effectiveness of the proposed method, and the results are reported based on the MAP and MRR metrics. The results show that the MAP values of the proposed method improved by 0. 6%, and the MRR metric is improved by 0. 2%. The results of our research show that using a heavy Language model does not guarantee a more reliable method for Answer selection problem. It also shows that the use of particular words, such as Question Word and Expected Answer word, can improve the performance of the method.

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APA: Copy

Mozafari, Jamshid, Fatemi, Afsaneh, & MORADI, PARHAM. (2020). A Method For Answer Selection Using DistilBERT And Important Words. INTERNATIONAL CONFERENCE ON WEB RESEARCH. SID. https://sid.ir/paper/949219/en

Vancouver: Copy

Mozafari Jamshid, Fatemi Afsaneh, MORADI PARHAM. A Method For Answer Selection Using DistilBERT And Important Words. 2020. Available from: https://sid.ir/paper/949219/en

IEEE: Copy

Jamshid Mozafari, Afsaneh Fatemi, and PARHAM MORADI, “A Method For Answer Selection Using DistilBERT And Important Words,” presented at the INTERNATIONAL CONFERENCE ON WEB RESEARCH. 2020, [Online]. Available: https://sid.ir/paper/949219/en

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