Studies in Informatics and Control – ICI Bucharest
Masanori AKIYOSHI
Graduate School of Information Science and Technology, Osaka University
Yamadaoka 2-1, Suita 565-0871, Japan
Keishi KIMURA
NTT West Corporation
Baba 3-15, Chuo-ku, Osaka, 540-8511, Japan
Hiroaki OISO
Codetoys Ltd.
Nishitenma 2-6-8, Kita-ku, Osaka 530-0047, Japan
Norihisa KOMODA
Graduate School of Information Science and Technology, Osaka University
Yamadaoka 2-1, Suita 565-0871, Japan
Abstract: This paper proposes a support system for analyzing answers to open-ended questions supplied by users as mobile game content evaluation when they unsubscribe the services. The answers include useful, unexpected opinions (atypical opinions) and expected opinions (typical opinions). It is inefficient to read them all during analysis. Therefore, we propose a support system for analysis of questionnaire data related to unsubscribing. The main function of the support system is classifying the answers into typical opinions and atypical opinions, and presenting them with user interfaces. In order to grasp user tendency, typical opinions are presented as a graph showing the number of transitions. Atypical opinions are presented as cards placement on 2-dimensional plane in order to grasp opinion groups with their content.
Keywords: Classification system, natural language processing, typical pattern, questionnaire.
Keishi Kimura received M.E. from Osaka University in 2006. In 2006, he joined NTT West Corporation and is engaged in system design and integration for communication infrastructure.
Hiroaki Oiso received his B.E. from Kobe University in 1994 and his Ph.D from Osaka University in 2004. He was with ENICOM (now NS Solutions Corp) from 1994 to 2001. In 2001, he joined Codeonline Co.,Ltd.(now Codetoys KK.) in Japan. He is president of Codetoys Ltd. and is engaged in system development and mobile contents provision.
Masanori Akiyoshi received his M.E. and Ph.D degrees from Kyoto University in 1987 and 1996, respectively. He was with Mitsubishi Electric Corp. from 1987 to 2005. In 2005, he joined the Faculty of Engineering, Osaka University. He is an associate professor of Department of Multimedia Engineering, the Graduate School of Information Science and Technology, Osaka University, JAPAN.
Norihisa Komoda received his M.E. and Ph.D degrees from Osaka University in 1974 and 1982, respectively. He was with Hitachi Ltd. from 1974 to 1991. In 1991, he joined the Faculty of Engineering, Osaka University. He is a professor of Department of Multimedia Engineering, the Graduate School of Information Science and Technology, Osaka University, JAPAN.
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CITE THIS PAPER AS:
Masanori AKIYOSHI, Keishi KIMURA, Hiroaki OISO, Norihisa KOMODA, Cost-benefit Analysis of Decentralized Ordering on Multi-tier Supply Chain by Risk Simulator, Studies in Informatics and Control, ISSN 1220-1766, vol. 18 (3), pp. 195-204, 2009.