Akira Shimazu


2013

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Using Shallow Semantic Parsing and Relation Extraction for Finding Contradiction in Text
Minh Quang Nhat Pham | Minh Le Nguyen | Akira Shimazu
Proceedings of the Sixth International Joint Conference on Natural Language Processing

2012

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A Reranking Model for Discourse Segmentation using Subtree Features
Ngo Xuan Bach | Nguyen Le Minh | Akira Shimazu
Proceedings of the 13th Annual Meeting of the Special Interest Group on Discourse and Dialogue

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Improving Statistical Machine Translation with Processing Shallow Parsing
Hoai-Thu Vuong | Vinh Van Nguyen | Viet Hong Tran | Akira Shimazu
Proceedings of the 26th Pacific Asia Conference on Language, Information, and Computation

2011

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Learning Logical Structures of Paragraphs in Legal Articles
Ngo Xuan Bach | Nguyen Le Minh | Tran Thi Oanh | Akira Shimazu
Proceedings of 5th International Joint Conference on Natural Language Processing

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A Listwise Approach to Coreference Resolution in Multiple Languages
Oanh Thi Tran | Bach Xuan Ngo | Minh Le Nguyen | Akira Shimazu
Proceedings of the 25th Pacific Asia Conference on Language, Information and Computation

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Supervised and Semi-Supervised Sequence Learning for Recognition of Requisite Part and Effectuation Part in Law Sentences
Le-Minh Nguyen | Ngo Xuan Bach | Akira Shimazu
Proceedings of the 9th International Workshop on Finite State Methods and Natural Language Processing

2009

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An Empirical Study of Vietnamese Noun Phrase Chunking with Discriminative Sequence Models
Le Minh Nguyen | Huong Thao Nguyen | Phuong Thai Nguyen | Tu Bao Ho | Akira Shimazu
Proceedings of the 7th Workshop on Asian Language Resources (ALR7)

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A Semi-supervised Approach for Generating a Table-of-Contents
Viet Cuong Nguyen | Le Minh Nguyen | Akira Shimazu
Proceedings of the International Conference RANLP-2009

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Improving a Lexicalized Hierarchical Reordering Model Using Maximum Entropy
Vinh Van Nguyen | Akira Shimazu | Minh Le Nguyen | Thai Phuong Nguyen
Proceedings of Machine Translation Summit XII: Papers

2008

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A Tree-to-String Phrase-based Model for Statistical Machine Translation
Thai Phuong Nguyen | Akira Shimazu | Tu-Bao Ho | Minh Le Nguyen | Vinh Van Nguyen
CoNLL 2008: Proceedings of the Twelfth Conference on Computational Natural Language Learning

2007

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A Multilingual Dependency Analysis System Using Online Passive-Aggressive Learning
Le-Minh Nguyen | Akira Shimazu | Phuong-Thai Nguyen | Xuan-Hieu Phan
Proceedings of the 2007 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning (EMNLP-CoNLL)

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Acquisition of Named-Entity-Related Relations for Searching
Tri-Thanh Nguyen | Akira Shimazu
Proceedings of the 21st Pacific Asia Conference on Language, Information and Computation

2006

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Semantic Parsing with Structured SVM Ensemble Classification Models
Le-Minh Nguyen | Akira Shimazu | Xuan-Hieu Phan
Proceedings of the COLING/ACL 2006 Main Conference Poster Sessions

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Improving Phrase-Based Statistical Machine Translation with Morpho-Syntactic Analysis and Transformation
Thai Phuong Nguyen | Akira Shimazu
Proceedings of the 7th Conference of the Association for Machine Translation in the Americas: Technical Papers

This paper presents our study of exploiting morpho-syntactic information for phrase-based statistical machine translation (SMT). For morphological transformation, we use hand-crafted transformational rules. For syntactic transformation, we propose a transformational model based on Bayes’ formula. The model is trained using a bilingual corpus and a broad coverage parser of the source language. The morphological and syntactic transformations are used in the preprocessing phase of a SMT system. This preprocessing method is applicable to language pairs in which the target language is poor in resources. We applied the proposed method to translation from English to Vietnamese. Our experiments showed a BLEU-score improvement of more than 3.28% in comparison with Pharaoh, a state-of-the-art phrase-based SMT system.

2005

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A Structured SVM Semantic Parser Augmented by Semantic Tagging with Conditional Random Field
Minh Le Nguyen | Akira Shimazu | Hieu Xuan Phan
Proceedings of the 19th Pacific Asia Conference on Language, Information and Computation

2004

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Probabilistic Sentence Reduction Using Support Vector Machines
Minh Le Nguyen | Akira Shimazu | Susumu Horiguchi | Bao Tu Ho | Masuru Fukushi
COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics

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High WSD Accuracy Using Naive Bayesian Classifier with Rich Features
Cuong Anh Le | Akira Shimazu
Proceedings of the 18th Pacific Asia Conference on Language, Information and Computation

1999

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Utterance Units and Exchanges in Spontaneous Japanese Dialogue
Masahito Kawamori | Akira Shimazu
Proceedings of the 13th Pacific Asia Conference on Language, Information and Computation

1998

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Translating a Unification Grammar with Disjunctions into Logical Constraints
Mikio Nakano | Akira Shimazu
36th Annual Meeting of the Association for Computational Linguistics and 17th International Conference on Computational Linguistics, Volume 2

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Translating a Unification Grammar with Disjunctions into Logical Constraints
Mikio Nakano | Akira Shimazu
COLING 1998 Volume 2: The 17th International Conference on Computational Linguistics

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Discourse Markers in Spontaneous Dialogue: A Corpus based study of Japanese and English
Masahito Kawamori | Takeshi Kawabata | Akira Shimazu
Discourse Relations and Discourse Markers

1996

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A Phonological Study on Japanese Discourse Markers
Masahito Kawamori | Akira Shimazu | Takeshi Kawabata
Proceedings of the 11th Pacific Asia Conference on Language, Information and Computation

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A Computational Model of Incremental Utterance Production in Task-Oriented Dialogues
Kohji Dohsaka | Akira Shimazu
COLING 1996 Volume 1: The 16th International Conference on Computational Linguistics

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Parsing Plans Situation-Dependently in Dialogues
Kiyoshi Kogure | Akira Shimazu | Mikio Nakano
COLING 1996 Volume 2: The 16th International Conference on Computational Linguistics

1994

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A Grammar and a Parser for Spontaneous Speech
Mikio Nakano | Akira Shimazu | Kiyoshi Kogure
COLING 1994 Volume 2: The 15th International Conference on Computational Linguistics

1990

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Japanese Sentence Analysis as Argumentation
Akira Shimazu
COLING 1990 Volume 3: Papers presented to the 13th International Conference on Computational Linguistics

1987

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Semantic Structure Analysis of Japanese Noun Phrases With Adnominal Particles
Akira Shimazu | Shozo Naito | Hirosato Nomura
25th Annual Meeting of the Association for Computational Linguistics

1986

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Translation by Understanding: A Machine Translation System LUTE
Hirosato Nomura | Shozo Naito | Yasuhiro Katagiri | Akira Shimazu
Coling 1986 Volume 1: The 11th International Conference on Computational Linguistics

1985

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Classification of Modality Function and Its Application to Japanese Language Analysis
Shozo Naito | Akira Shimazu | Hirosato Nomura
23rd Annual Meeting of the Association for Computational Linguistics