2016 Fiscal Year Final Research Report
Extending predicate-argument thesaurus with large-scale language resources for applying to natural language processing and linguistic analysis
Project/Area Number |
26370485
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Linguistics
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Research Institution | Okayama University |
Principal Investigator |
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Keywords | 項構造 / 名詞項構造 / 述語項構造 / 意味役割 / 述語項構造シソーラス |
Outline of Final Research Achievements |
We developed and published a new framework of nominal argument structure for Japanese. The key technique of describing arguments is number-based semantic roles, which enables us to identify each argument between paraphrased sentences in nominal predicates. We constructed 5,000 example sentences of nominal predicates; those of 13000 sentences have semantic role labels and links to the corresponding examples in the predicate thesaurus. We also constructed paraphrase data between different part-of-speech words and incorporate the paraphrase data into an argument structure analyzer. Besides, we improve the performance of the argument structure analyzer by applying a statistical learning method, and published the results in IPSJ Journal and the proceedings of International Conference PACLING 2015. We also show that the argument structure analyzer with nominal predicates enables us to improve performance of Japanese textual entailment task.
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Free Research Field |
自然言語処理
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