2011 Fiscal Year Final Research Report
Research on Opinion Extraction and Summarization for Blogs in Japanese and English
| Project/Area Number |
21700268
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Library and information science/Humanistic social informatics
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| Research Institution | University of Tsukuba (2010-2011)
Toyohashi University of Technology (2009) |
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Principal Investigator |
SEKI Yohei 筑波大学, 図書館情報メディア系, 助教 (00348468)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 情報検索 |
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| Research Abstract |
In this research, we annotated opinion and opinion targets using Yahoo! Blog corpus and found that opinions were characterized with domains such as computer, entertainment, or politics. We also proposed opinion extraction system toward multiple domains based on ensemble learning. In NTCIR-8, we conduct multilingual opinion analysis task to evaluate opinion extraction technologies in Japanese, English, and Chinese. We also extended English appraisal dictionary toward Japanese dictionary and experimented opinion extraction in Japanese and English using two dictionaries. We also focused community question answering contents (CQA) to extract and summarize user opinions, and proposed good answer estimation and query expansion type Web retrieval systems. Finally, we proposed communication supporting systems mediating personal opinions such as : (1) facemark recommendation system based on emotion estimation using microblogs, (2) relation estimation system toward personal names and surrounding entities, and (3) example-based machine translation system using alignment clues in parallel multilingual corpus.
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[Presentation] ニュース・ブログにおける話題の相関と変遷の分析-震災に関する話題を例題として-2012
Author(s)
小池大地, 横本大輔, 牧田健作, 鈴木浩子, 宇津呂武仁, 河田容英, 吉岡真治, 神門典子, 福原知宏, 中川裕志, 清田陽司, 関洋平
Organizer
DEIM2012
Place of Presentation
神戸市
Year and Date
20120303-05
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