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Alastair Butler


2020

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Constructing Web-Accessible Semantic Role Labels and Frames for Japanese as Additions to the NPCMJ Parsed Corpus
Koichi Takeuchi | Alastair Butler | Iku Nagasaki | Takuya Okamura | Prashant Pardeshi
Proceedings of the Twelfth Language Resources and Evaluation Conference

As part of constructing the NINJAL Parsed Corpus of Modern Japanese (NPCMJ), a web-accessible language resource, we are adding frame information for predicates, together with two types of semantic role labels that mark the contributions of arguments. One role type consists of numbered semantic roles, like in PropBank, to capture relations between arguments in different syntactic patterns. The other role type consists of semantic roles with conventional names. Both role types are compatible with hierarchical frames that belong to related predicates. Adding semantic role and frame information to the NPCMJ will support a web environment where language learners and linguists can search examples of Japanese for syntactic and semantic features. The annotation will also provide a language resource for NLP researchers making semantic parsing models (e.g., for AMR parsing) following machine learning approaches. In this paper, we describe how the two types of semantic role labels are defined under the frame based approach, i.e., both types can be consistently applied when linked to corresponding frames. Then we show special cases of syntactic patterns and the current status of the annotation work.

2016

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DynamicPower at SemEval-2016 Task 8: Processing syntactic parse trees with a Dynamic Semantics core
Alastair Butler
Proceedings of the 10th International Workshop on Semantic Evaluation (SemEval-2016)

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Deterministic natural language generation from meaning representations for machine translation
Alastair Butler
Proceedings of the 2nd Workshop on Semantics-Driven Machine Translation (SedMT 2016)

2015

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Round trips with meaning stopovers
Alastair Butler
Proceedings of the 1st Workshop on Semantics-Driven Statistical Machine Translation (S2MT 2015)

2010

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A Modular Architecture for the Wide-Coverage Translation of Natural Language Texts into Predicate Logic Formulas
Yusuke Miyao | Alastair Butler | Kei Yoshimoto | Jun’ichi Tsujii
Proceedings of the 24th Pacific Asia Conference on Language, Information and Computation

2009

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Towards Establishing a Hierarchy in the Japanese Sentence Structure
Kei Yoshimoto | Chidori Nakamura | Alastair Butler
Proceedings of the 23rd Pacific Asia Conference on Language, Information and Computation, Volume 2