An incrementally constructed semantic representation for empty category resolution

• Project/Area Number: 16K00313
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Intelligent informatics
• Research Institution: Osaka Gakuin University
• Principal Investigator: OTANI Akira 大阪学院大学, 情報学部, 教授 (50283817)
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 省略 / empty category / 動的統語論 / Dynamic Syntax / 右方転位 / 後置文 / 認識動詞構文 / raising to object / Surface-Compositional / 表層 / 構成性 / 繰り上げ構文 / 繰り上げ / コントロール / 認識動詞 / 叙述 / 表層構成的 / 対角付与 / 語順 / Wh / 漸進的処理 / オンライン処理 / 統語論 / 理論言語学 / 省略現象 / 省略解析 / 意味表示 / コーパス

Outline of Final Research Achievements

This research project led to the design of a Japanese formal grammar based on Dynamic Syntax (DS) and considered a way of (semi-)automatically extracting semantic representations from corpora by using DS derivations. In general, a parsing performance deteriorates as a sentence loses words and phrases because of linguistically complex phenomena such as zero pronoun and ellipsis. Under the DS framework, we analysed a number of linguistic matters including syntactic and semantic properties of right dislocation and epistemic verb construction, and propose an incremental parsing strategy which is available for empty category resolution.

Academic Significance and Societal Importance of the Research Achievements

くだけた日常会話だけでなく形式を重んじた文書においても，単語や句といった文の構成要素はしばしば省略される．また，文意の解釈では重要であるにも関わらず，省略されているものとして認識されていない要素を，文が含むこともある．本研究は，そうした要素を含むさまざまな文を検討することで，省略が生じる文の性質を言語学的に明らかにするとともに，情報化社会の基盤であるコンピュータを用いた言語処理においても緊要の課題にあげられる省略解析にも応用できるような文法を形式化した．

Research Products

• [Journal Article] Note on Japanese Epistemic Verb Constructions: A Surface-Compositional Analysis (2019)
  • Author(s): Akira Ohtani and Mark Steedman
  • Journal Title: Studies in East Asian Linguistics Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Raising to Object in Japanese: An HPSG Analysis (2017)
  • Author(s): Akira Ohtani
  • Journal Title: Proceedings of the 31st Pacific Asia Conference on Language, Information and Computation Volume: 31
  • NAID: 120006699545
  • Peer Reviewed / Open Access
• [Journal Article] Wh-Licensing in Japanese Right Disloctions: An Incremantal Grammar View (2017)
  • Author(s): Tohru Seraku and Akira Ohtani
  • Journal Title: Empirical Issues in Syntax and Semantics Volume: 11 Pages: 199-224
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Raising to Object in Japanese: An HPSG Analysis (2017)
  • Author(s): Akira Ohtani
  • Organizer: The 31st Pacific Asia Conference on Language, Information and Computation (PACLIC 31 2017)
  • Int'l Joint Research
• [Book] Studies in East Asian Linguistics (2018)
  • Author(s): Akira Ohtani, Mark Steedman, Kim Jong-Bok and Chu-Ren Huang
  • Publisher: Springer
• [Book] Computational and Cognitive Approaches to Narratology (2016)
  • Author(s): Takashi Ogata, Taisuke Akimoto, Akinori Abe, Yoji Kawamura, Yoko Takeda, Miki Ueno, Kiyohito Fukuda, Naoki Mori, Koichi Takeuchi, Tohru Seraku, Akira Ohtani, Kai Seino, Yuichiro Haruna, Shun Ishizaki, Gen Tuchiyama, Ryota Nomura, Takeshi Okada, Sara Uboldi, Stefano Calabrese, Yukiko Ogawa, Tuge T. Gulsen, Akihito Kanai
  • Total Pages: 467
  • Publisher: IGI Global