論 文 Relativeness and the Historical Shifts within the Full-length Works of Haruki MURAKAMI Using Quantitative Analysis Akira KUDO Hajime MURAI Akifumi TOKOSUMI Graduate School of Decision Science and Technology Tokyo Institute of Technology E-mail: {akudoh_muraiakt}@valdes.titech.ac.jp The aim of the present paper is to scientifically verify the stylistic changes of one author of novels. The target data consist of the twelve full-length works of Haruki MURAKAMIas a representative of modern Japanese literature. We measured vocabulary distributions for the textsextracted feature vectors from them using classifications in terms of both word-class and semantic categoriesand conducted clustering analyses on the data in order to identify groupings based on style within his twelve full-length works. The analysis based on word-class yielded clusters that reflect a diachronic division, indicating that MURAKAMI s style has shifted over time. In contrast, the analysis based on semantic categories yielded clusters that reflect the themes and the contents of the novels, indicating that MURAKAMI s interest has shifted from the individual to society. 1
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論 文 情 報 知 識 学 会 誌 早 期 公 開 2011 Vol.21 (2010 年 7 月 15 日 受 付 ) (2011 年 1 月 15 日 採 択 ) (2011 年 1 月 31 日 オンライン 公 開 ) 19