Question Classification in Question Answering System using Combination of Ensemble Classification and Feature Selection

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GOLZARI SHAHRAM; Sanei Farideh; SAYBANI MAHMOUD REZA; HARIFI ABBAS; Basir Mojtaba

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Journal Paper

Paper Information

Journal: JOURNAL OF ARTIFICIAL INTELLIGENCE AND DATA MINING Year:2022 | Volume:10 | Issue:1 Page(s): 15-24

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Title

Question Classification in Question Answering System using Combination of Ensemble Classification and Feature Selection

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Keywords

Question Answering System

Question Classification

Feature Selection

Ensemble Classification

Gravitational Search Algorithm

Differential Evolution Algorithm

Abstract

A Question Answering System (QAS) is a special form of information retrieval that consists of three parts: question processing, information retrieval, and answer selection. Determining the type of question is the most important part of QAS as it affects the other following parts. In this work, we use the effective features and Ensemble Classification in order to improve the QAS performance by increasing the accuracy of question type identification. We use the Gravitational Search Algorithm (GSA) in order to select the features and perform the Ensemble Classification. The proposed system is extensively tested on different datasets using four types of experiments: (1) neither Feature Selection nor Ensemble Classification, (2) Feature Selection without Ensemble Classification, (3) Ensemble Classification without Feature Selection, and (4) Feature Selection with Ensemble Classification. These four kinds of experiments are carried out under the Differential Evolution (DE) algorithm and GSA. The experimental results obtained show that the proposed method outperforms compared to the state-of-the-art methods in the previous research works.

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APA: Copy

GOLZARI, SHAHRAM, Sanei, Farideh, SAYBANI, MAHMOUD REZA, HARIFI, ABBAS, & Basir, Mojtaba. (2022). Question Classification in Question Answering System using Combination of Ensemble Classification and Feature Selection. JOURNAL OF ARTIFICIAL INTELLIGENCE AND DATA MINING, 10(1 ), 15-24. SID. https://sid.ir/paper/992571/en

Vancouver: Copy

GOLZARI SHAHRAM, Sanei Farideh, SAYBANI MAHMOUD REZA, HARIFI ABBAS, Basir Mojtaba. Question Classification in Question Answering System using Combination of Ensemble Classification and Feature Selection. JOURNAL OF ARTIFICIAL INTELLIGENCE AND DATA MINING[Internet]. 2022;10(1 ):15-24. Available from: https://sid.ir/paper/992571/en

IEEE: Copy

SHAHRAM GOLZARI, Farideh Sanei, MAHMOUD REZA SAYBANI, ABBAS HARIFI, and Mojtaba Basir, “Question Classification in Question Answering System using Combination of Ensemble Classification and Feature Selection,” JOURNAL OF ARTIFICIAL INTELLIGENCE AND DATA MINING, vol. 10, no. 1 , pp. 15–24, 2022, [Online]. Available: https://sid.ir/paper/992571/en

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