2012 Fiscal Year Final Research Report
Case Analysis for the Base Form with Knowledge of Case Alternation between the Surface and Base Forms
| Project/Area Number |
23800025
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Intelligent informatics
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
SASANO Ryohei 東京工業大学, 精密工学研究所, 助教 (70603918)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 自然言語処理 / 述語項構造 / 格構造解析 / 格交替 / 格フレーム |
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| Research Abstract |
This research project developed a method for automatically acquiring knowledge for case alternation between the passive and active voices in Japanese. By leveraging several linguistic constraints on alternation patterns and lexical case frames obtained from a large Web corpus, our method aligns an inputted case frame in the passive voice to a corresponding case frame in the active voice and finds an alignment between their cases. In addition, we released an anaphora and ellipsis resolution system as an extension of Japanese dependency and case structure analyzer KNP.
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