Volume 30 Issue 1
Jan.  2021
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ZHOU Yajian, DENG Dingpeng, CHI Junhui. A Short Text Classification Algorithm Based on Semantic Extension[J]. Chinese Journal of Electronics, 2021, 30(1): 153-159. doi: 10.1049/cje.2020.11.014
Citation: ZHOU Yajian, DENG Dingpeng, CHI Junhui. A Short Text Classification Algorithm Based on Semantic Extension[J]. Chinese Journal of Electronics, 2021, 30(1): 153-159. doi: 10.1049/cje.2020.11.014

A Short Text Classification Algorithm Based on Semantic Extension

doi: 10.1049/cje.2020.11.014

the National Key Research and Development Project 2017YFB0802803

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  • Author Bio:

    ZHOU Yajian  obtained the Ph.D. degree in communications engineering from Xidian University at Xi'an in 2003. He received the M.S. degree in 1996 and B.S. degree in 1993, both from Beihang University. He is currently an associate professor in the School of Computer Science of Beijing University of Posts and Telecommunications (BUPT). His main research interests include mobile communications (e.g., LTE, D2D, and WLAN), security of wireless networks, security of databases, and cryptography theory and its application. He is now in charge of two state-level projects: one from the National Natural Science Foundation of China and another one from the National Science and Technology Major Project of China. He was once the project leaders of the National 863 High-Tech Research and Development Plan of China and a project from Beijing Municipal Natural Science Foundation. He has published approximately 50 technical papers and 6 books. (Email: yajian@bupt.edu.cn)

    CHI Junhui  received an M.S. degree in big data and intelligent information processing from Beijing University of Posts and Telecommunications, China in 2018. From 2018 to 2019, he was a teaching assistant of discrete mathematics. His research interests include natural language processing, statistical learning theory and brain-like computing. Mr. Chi is a student member of the China Computer Federation (CCF). (Email: cjhwilliam714@edu.cn)

  • Corresponding author: DENG Dingpeng  (corresponding author) received the B.S. degree in network engineering from Beijing Information Science and Technology University, China, in 2013, and the M.S. degree in big data from Beijing University of Posts and Telecommunications, China, in 2017. His current research interests include information processing, natural language processing, cloud computing, and network security. (Email: dingpeng@bupt.edu.cn)
  • Received Date: 2020-04-27
  • Accepted Date: 2020-06-03
  • Publish Date: 2021-01-01
  • A semantic-extension-based algorithm for short texts is proposed, by involving the Word2vec and the LDA model, to improve the performance of classification, which is frequently deteriorated by semantic dependencies and scarcity of features. For every keyword within a short text, weighted synonyms and related words can be generated by the Word2Vec and LDA model, respectively, and subsequently be inserted to extend the short text to a reasonable length. We not only have established a criterion by means of similarity estimation to determine whether a sentence should be extended, we designed a scheme to choose the number of extended words. The extended text will be classified. Experimental results show that, the classification performance of the proposed algorithm, in terms of the precision rate, is approximately 5% higher than that of the TF-IDF model and approximately 10% higher than that of the VSM method.
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