Development of a method for controlling the sentiment and the attitude expressed in text

Research Project

Project/Area Number	21700152
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Intelligent informatics
Research Institution	Tokyo Institute of Technology
Principal Investigator	TAKAMURA Hiroya 東京工業大学, 精密工学研究所, 准教授 (80361773)
Project Period (FY)	2009 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000) Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords	自然言語処理 / 言語生成 / 言い換え / 感性情報処理 / 感情情報処理
Research Abstract	We automatically annotated information regarding the difficulty and the writing style to content words on the basis of the co-occurrence statistics of the content words and function words that are listed in the function word dictionary "Tsutsuji"(Matsuyoshi et al. 2007). We then developed a method for paraphrasing each content word using a learning-to-rank approach. We evaluated the proposed method through the experiments with a dataset of academic papers. We showed that the problem of out-of-vocabulary words is solved by the information that was automatically annotated.

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