Masaaki Nagata

According to our database, Masaaki Nagata authored at least 177 papers between 1987 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Argument Mining as a Text-to-Text Generation Task.

Masayuki Kawarada, Tsutomu Hirao, Wataru Uchida, Masaaki Nagata

Proceedings of the 18th Conference of the European Chapter of the Association for Computational Linguistics, 2024

2023

Enhanced Retrieve-Edit-Rerank Framework with kNN-MT.

Xiaotian Wang, Takuya Tamura, Takehito Utsuro, Masaaki Nagata

Proceedings of the 37th Pacific Asia Conference on Language, 2023

WSPAlign: Word Alignment Pre-training via Large-Scale Weakly Supervised Span Prediction.

Qiyu Wu, Masaaki Nagata, Yoshimasa Tsuruoka

Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 2023

2022

Extending Word-Level Quality Estimation for Post-Editing Assistance.

Yizhen Wei, Takehito Utsuro, Masaaki Nagata

CoRR, 2022

Findings of the 2022 Conference on Machine Translation (WMT22).

Tom Kocmi, Rachel Bawden, Ondrej Bojar, Anton Dvorkovich, Christian Federmann, Mark Fishel, Thamme Gowda, Yvette Graham, Roman Grundkiewicz, Barry Haddow, Rebecca Knowles, Philipp Koehn, Christof Monz, Makoto Morishita, Masaaki Nagata, Toshiaki Nakazawa, Michal Novák, Martin Popel, Maja Popovic

Proceedings of the Seventh Conference on Machine Translation, 2022

JParaCrawl v3.0: A Large-scale English-Japanese Parallel Corpus.

Makoto Morishita, Katsuki Chousa, Jun Suzuki, Masaaki Nagata

Proceedings of the Thirteenth Language Resources and Evaluation Conference, 2022

Domain Adaptation of Machine Translation with Crowdworkers.

Makoto Morishita, Jun Suzuki, Masaaki Nagata

Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing: EMNLP 2022 - Industry Track, Abu Dhabi, UAE, December 7, 2022

A Simple and Strong Baseline for End-to-End Neural RST-style Discourse Parsing.

Naoki Kobayashi, Tsutomu Hirao, Hidetaka Kamigaito, Manabu Okumura, Masaaki Nagata

Proceedings of the Findings of the Association for Computational Linguistics: EMNLP 2022, 2022

2021

Findings of the 2021 Conference on Machine Translation (WMT21).

Farhad Akhbardeh, Arkady Arkhangorodsky, Magdalena Biesialska, Ondrej Bojar, Rajen Chatterjee, Vishrav Chaudhary, Marta R. Costa-jussà, Cristina España-Bonet, Angela Fan, Christian Federmann, Markus Freitag, Yvette Graham, Roman Grundkiewicz, Barry Haddow, Leonie Harter, Kenneth Heafield, Christopher Homan, Matthias Huck, Kwabena Amponsah-Kaakyire, Jungo Kasai, Daniel Khashabi, Kevin Knight, Tom Kocmi, Philipp Koehn, Nicholas Lourie, Christof Monz, Makoto Morishita, Masaaki Nagata, Ajay Nagesh, Toshiaki Nakazawa, Matteo Negri, Santanu Pal, Allahsera Auguste Tapo, Marco Turchi, Valentin Vydrin, Marcos Zampieri

Proceedings of the Sixth Conference on Machine Translation, 2021

Improving Neural RST Parsing Model with Silver Agreement Subtrees.

Naoki Kobayashi, Tsutomu Hirao, Hidetaka Kamigaito, Manabu Okumura, Masaaki Nagata

Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2021

Machine Translation Utilizing Similar Translation Retrieval.

Takuya Tamura, Yizhen Wei, Takehito Utsuro, Masaaki Nagata

Proceedings of the Advances in Artificial Intelligence, 2021

Context-aware Neural Machine Translation with Mini-batch Embedding.

Makoto Morishita, Jun Suzuki, Tomoharu Iwata, Masaaki Nagata

Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume, 2021

Zero Pronouns Identification based on Span prediction.

Sei Iwata, Taro Watanabe, Masaaki Nagata

Proceedings of the ACL-IJCNLP 2021 Student Research Workshop, 2021

2020

Bilingual Text Extraction as Reading Comprehension.

Katsuki Chousa, Masaaki Nagata, Masaaki Nishino

CoRR, 2020

Findings of the 2020 Conference on Machine Translation (WMT20).

Loïc Barrault, Magdalena Biesialska, Ondrej Bojar, Marta R. Costa-jussà, Christian Federmann, Yvette Graham, Roman Grundkiewicz, Barry Haddow, Matthias Huck, Eric Joanis, Tom Kocmi, Philipp Koehn, Chi-kiu Lo, Nikola Ljubesic, Christof Monz, Makoto Morishita, Masaaki Nagata, Toshiaki Nakazawa, Santanu Pal, Matt Post, Marcos Zampieri

Proceedings of the Fifth Conference on Machine Translation, 2020

A Test Set for Discourse Translation from Japanese to English.

Masaaki Nagata, Makoto Morishita

Proceedings of The 12th Language Resources and Evaluation Conference, 2020

JParaCrawl: A Large Scale Web-Based English-Japanese Parallel Corpus.

Makoto Morishita, Jun Suzuki, Masaaki Nagata

Proceedings of The 12th Language Resources and Evaluation Conference, 2020

University of Tsukuba's Machine Translation System for IWSLT20 Open Domain Translation Task.

Hongyi Cui, Yizhen Wei, Shohei Iida, Takehito Utsuro, Masaaki Nagata

Proceedings of the 17th International Conference on Spoken Language Translation, 2020

Sequential Span Classification with Neural Semi-Markov CRFs for Biomedical Abstracts.

Kosuke Yamada, Tsutomu Hirao, Ryohei Sasano, Koichi Takeda, Masaaki Nagata

Proceedings of the Findings of the Association for Computational Linguistics: EMNLP 2020, 2020

A Supervised Word Alignment Method based on Cross-Language Span Prediction using Multilingual BERT.

Masaaki Nagata, Katsuki Chousa, Masaaki Nishino

Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing, 2020

SODA: Story Oriented Dense Video Captioning Evaluation Framework.

Soichiro Fujita, Tsutomu Hirao, Hidetaka Kamigaito, Manabu Okumura, Masaaki Nagata

Proceedings of the Computer Vision - ECCV 2020, 2020

SpanAlign: Sentence Alignment Method based on Cross-Language Span Prediction and ILP.

Katsuki Chousa, Masaaki Nagata, Masaaki Nishino

Proceedings of the 28th International Conference on Computational Linguistics, 2020

Top-Down RST Parsing Utilizing Granularity Levels in Documents.

Naoki Kobayashi, Tsutomu Hirao, Hidetaka Kamigaito, Manabu Okumura, Masaaki Nagata

Proceedings of the Thirty-Fourth AAAI Conference on Artificial Intelligence, 2020

2019

NTT's Machine Translation Systems for WMT19 Robustness Task.

Soichiro Murakami, Makoto Morishita, Tsutomu Hirao, Masaaki Nagata

Proceedings of the Fourth Conference on Machine Translation, 2019

Selecting Informative Context Sentence by Forced Back-Translation.

Ryuichiro Kimura, Shohei Iida, Hongyi Cui, Po-Hsuan Hung, Takehito Utsuro, Masaaki Nagata

Proceedings of Machine Translation Summit XVII Volume 1: Research Track, 2019

A Multi-Hop Attention for RNN based Neural Machine Translation.

Shohei Iida, Ryuichiro Kimura, Hongyi Cui, Po-Hsuan Hung, Takehito Utsuro, Masaaki Nagata

Proceedings of The 8th Workshop on Patent and Scientific Literature Translation@MTSummit 2019, 2019

ILP-based Compressive Speech Summarization with Content Word Coverage Maximization and Its Oracle Performance Analysis.

Atsunori Ogawa, Tsutomu Hirao, Tomohiro Nakatani, Masaaki Nagata

Proceedings of the IEEE International Conference on Acoustics, 2019

Generating Natural Anagrams: Towards Language Generation Under Hard Combinatorial Constraints.

Masaaki Nishino, Sho Takase, Tsutomu Hirao, Masaaki Nagata

Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing, 2019

Split or Merge: Which is Better for Unsupervised RST Parsing?

Naoki Kobayashi, Tsutomu Hirao, Kengo Nakamura, Hidetaka Kamigaito, Manabu Okumura, Masaaki Nagata

Proceedings of the 2019 Conference on Empirical Methods in Natural Language Processing and the 9th International Joint Conference on Natural Language Processing, 2019

Mixed Multi-Head Self-Attention for Neural Machine Translation.

Hongyi Cui, Shohei Iida, Po-Hsuan Hung, Takehito Utsuro, Masaaki Nagata

Proceedings of the 3rd Workshop on Neural Generation and Translation@EMNLP-IJCNLP 2019, 2019

Context-aware Neural Machine Translation with Coreference Information.

Takumi Ohtani, Hidetaka Kamigaito, Masaaki Nagata, Manabu Okumura

Proceedings of the Fourth Workshop on Discourse in Machine Translation, 2019

NTT Neural Machine Translation Systems at WAT 2019.

Makoto Morishita, Jun Suzuki, Masaaki Nagata

Proceedings of the 6th Workshop on Asian Translation, 2019

Using Semantic Similarity as Reward for Reinforcement Learning in Sentence Generation.

Go Yasui, Yoshimasa Tsuruoka, Masaaki Nagata

Proceedings of the 57th Conference of the Association for Computational Linguistics, 2019

Answering while Summarizing: Multi-task Learning for Multi-hop QA with Evidence Extraction.

Kosuke Nishida, Kyosuke Nishida, Masaaki Nagata, Atsushi Otsuka, Itsumi Saito, Hisako Asano, Junji Tomita

Proceedings of the 57th Conference of the Association for Computational Linguistics, 2019

Attention over Heads: A Multi-Hop Attention for Neural Machine Translation.

Shohei Iida, Ryuichiro Kimura, Hongyi Cui, Po-Hsuan Hung, Takehito Utsuro, Masaaki Nagata

Proceedings of the 57th Conference of the Association for Computational Linguistics, 2019

Character n-Gram Embeddings to Improve RNN Language Models.

Sho Takase, Jun Suzuki, Masaaki Nagata

Proceedings of the Thirty-Third AAAI Conference on Artificial Intelligence, 2019

2018

NTT's Neural Machine Translation Systems for WMT 2018.

Makoto Morishita, Jun Suzuki, Masaaki Nagata

Proceedings of the Third Conference on Machine Translation: Shared Task Papers, 2018

Reducing Odd Generation from Neural Headline Generation.

Shun Kiyono, Sho Takase, Jun Suzuki, Naoaki Okazaki, Kentaro Inui, Masaaki Nagata

Proceedings of the 32nd Pacific Asia Conference on Language, Information and Computation, 2018

Provable Fast Greedy Compressive Summarization with Any Monotone Submodular Function.

Shinsaku Sakaue, Tsutomu Hirao, Masaaki Nishino, Masaaki Nagata

Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2018

Higher-Order Syntactic Attention Network for Longer Sentence Compression.

Hidetaka Kamigaito, Katsuhiko Hayashi, Tsutomu Hirao, Masaaki Nagata

Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2018

Neural Tensor Networks with Diagonal Slice Matrices.

Takahiro Ishihara, Katsuhiko Hayashi, Hitoshi Manabe, Masashi Shimbo, Masaaki Nagata

Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2018

Pruning Basic Elements for Better Automatic Evaluation of Summaries.

Ukyo Honda, Tsutomu Hirao, Masaaki Nagata

Proceedings of the 2018 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, 2018

Word Rewarding for Adequate Neural Machine Translation.

Yuto Takebayashi, Chenhui Chu, Yuki Arase, Masaaki Nagata

Proceedings of the 15th International Conference on Spoken Language Translation, 2018

Optimizing Network Reliability via Best-First Search over Decision Diagrams.

Masaaki Nishino, Takeru Inoue, Norihito Yasuda, Shin-ichi Minato, Masaaki Nagata

Proceedings of the 2018 IEEE Conference on Computer Communications, 2018

Direct Output Connection for a High-Rank Language Model.

Sho Takase, Jun Suzuki, Masaaki Nagata

Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing, Brussels, Belgium, October 31, 2018

Unsupervised Token-wise Alignment to Improve Interpretation of Encoder-Decoder Models.

Shun Kiyono, Sho Takase, Jun Suzuki, Naoaki Okazaki, Kentaro Inui, Masaaki Nagata

Proceedings of the Workshop: Analyzing and Interpreting Neural Networks for NLP, 2018

Automatic Pyramid Evaluation Exploiting EDU-based Extractive Reference Summaries.

Tsutomu Hirao, Hidetaka Kamigaito, Masaaki Nagata

Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing, Brussels, Belgium, October 31, 2018

Improving Neural Machine Translation by Incorporating Hierarchical Subword Features.

Makoto Morishita, Jun Suzuki, Masaaki Nagata

Proceedings of the 27th International Conference on Computational Linguistics, 2018

An Empirical Study of Building a Strong Baseline for Constituency Parsing.

Jun Suzuki, Sho Takase, Hidetaka Kamigaito, Makoto Morishita, Masaaki Nagata

Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics, 2018

2017

BDD-Constrained A^* Search: A Fast Method for Solving Constrained Shortest-Path Problems.

Fumito Takeuchi, Masaaki Nishino, Norihito Yasuda, Takuya Akiba, Shin-ichi Minato, Masaaki Nagata

IEICE Trans. Inf. Syst., 2017

Learning to Answer Questions by Understanding Using Entity-Based Memory Network.

Xun Wang, Katsuhito Sudoh, Masaaki Nagata, Tomohide Shibata, Daisuke Kawahara, Sadao Kurohashi

Computación y Sistemas, 2017

Source-side Prediction for Neural Headline Generation.

Shun Kiyono, Sho Takase, Jun Suzuki, Naoaki Okazaki, Kentaro Inui, Masaaki Nagata

CoRR, 2017

RNN-based Encoder-decoder Approach with Word Frequency Estimation.

Jun Suzuki, Masaaki Nagata

CoRR, 2017

Hierarchical Word Structure-based Parsing: A Feasibility Study on UD-style Dependency Parsing in Japanese.

Takaaki Tanaka, Katsuhiko Hayashi, Masaaki Nagata

Proceedings of the 15th International Conference on Parsing Technologies, 2017

Input-to-Output Gate to Improve RNN Language Models.

Sho Takase, Jun Suzuki, Masaaki Nagata

Proceedings of the Eighth International Joint Conference on Natural Language Processing, 2017

Supervised Attention for Sequence-to-Sequence Constituency Parsing.

Hidetaka Kamigaito, Katsuhiko Hayashi, Tsutomu Hirao, Hiroya Takamura, Manabu Okumura, Masaaki Nagata

Proceedings of the Eighth International Joint Conference on Natural Language Processing, 2017

Cutting-off Redundant Repeating Generations for Neural Abstractive Summarization.

Jun Suzuki, Masaaki Nagata

Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics, 2017

K-best Iterative Viterbi Parsing.

Katsuhiko Hayashi, Masaaki Nagata

Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics, 2017

Enumeration of Extractive Oracle Summaries.

Tsutomu Hirao, Masaaki Nishino, Jun Suzuki, Masaaki Nagata

Proceedings of the 15th Conference of the European Chapter of the Association for Computational Linguistics, 2017

Learning to Rank for Coordination Detection.

Xun Wang, Rumeng Li, Hiroyuki Shindo, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the Computational Linguistics and Intelligent Text Processing, 2017

Controlling Target Features in Neural Machine Translation via Prefix Constraints.

Shunsuke Takeno, Masaaki Nagata, Kazuhide Yamamoto

Proceedings of the 4th Workshop on Asian Translation, 2017

NTT Neural Machine Translation Systems at WAT 2017.

Makoto Morishita, Jun Suzuki, Masaaki Nagata

Proceedings of the 4th Workshop on Asian Translation, 2017

Oracle Summaries of Compressive Summarization.

Tsutomu Hirao, Masaaki Nishino, Masaaki Nagata

Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics, 2017

BDD-Constrained A* Search: A Fast Method for Solving Constrained DAG Shortest-Path Problems.

Fumito Takeuchi, Masaaki Nishino, Norihito Yasuda, Takuya Akiba, Shin-ichi Minato, Masaaki Nagata

Proceedings of the Workshops of the The Thirty-First AAAI Conference on Artificial Intelligence, 2017

Compiling Graph Substructures into Sentential Decision Diagrams.

Masaaki Nishino, Norihito Yasuda, Shin-ichi Minato, Masaaki Nagata

Proceedings of the Thirty-First AAAI Conference on Artificial Intelligence, 2017

Dancing with Decision Diagrams: A Combined Approach to Exact Cover.

Masaaki Nishino, Norihito Yasuda, Shin-ichi Minato, Masaaki Nagata

Proceedings of the Thirty-First AAAI Conference on Artificial Intelligence, 2017

2016

Reading Comprehension using Entity-based Memory Network.

Xun Wang, Katsuhito Sudoh, Masaaki Nagata, Tomohide Shibata, Daisuke Kawahara, Sadao Kurohashi

CoRR, 2016

Empirical comparison of dependency conversions for RST discourse trees.

Katsuhiko Hayashi, Tsutomu Hirao, Masaaki Nagata

Proceedings of the SIGDIAL 2016 Conference, 2016

Right-truncatable Neural Word Embeddings.

Jun Suzuki, Masaaki Nagata

Proceedings of the NAACL HLT 2016, 2016

Learning Compact Neural Word Embeddings by Parameter Space Sharing.

Jun Suzuki, Masaaki Nagata

Proceedings of the Twenty-Fifth International Joint Conference on Artificial Intelligence, 2016

Neural Headline Generation on Abstract Meaning Representation.

Sho Takase, Jun Suzuki, Naoaki Okazaki, Tsutomu Hirao, Masaaki Nagata

Proceedings of the 2016 Conference on Empirical Methods in Natural Language Processing, 2016

Exploring Text Links for Coherent Multi-Document Summarization.

Xun Wang, Masaaki Nishino, Tsutomu Hirao, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the COLING 2016, 2016

Integrating empty category detection into preordering Machine Translation.

Shunsuke Takeno, Masaaki Nagata, Kazuhide Yamamoto

Proceedings of the 3rd Workshop on Asian Translation, 2016

Chinese-to-Japanese Patent Machine Translation based on Syntactic Pre-ordering for WAT 2016.

Katsuhito Sudoh, Masaaki Nagata

Proceedings of the 3rd Workshop on Asian Translation, 2016

Phrase Table Pruning via Submodular Function Maximization.

Masaaki Nishino, Jun Suzuki, Masaaki Nagata

Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics, 2016

Empty element recovery by spinal parser operations.

Katsuhiko Hayashi, Masaaki Nagata

Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics, 2016

Zero-Suppressed Sentential Decision Diagrams.

Masaaki Nishino, Norihito Yasuda, Shin-ichi Minato, Masaaki Nagata

Proceedings of the Thirtieth AAAI Conference on Artificial Intelligence, 2016

2015

Summarization Based on Task-Oriented Discourse Parsing.

Xun Wang, Yasuhisa Yoshida, Tsutomu Hirao, Katsuhito Sudoh, Masaaki Nagata

IEEE ACM Trans. Audio Speech Lang. Process., 2015

Summarizing a Document by Trimming the Discourse Tree.

Tsutomu Hirao, Masaaki Nishino, Yasuhisa Yoshida, Jun Suzuki, Norihito Yasuda, Masaaki Nagata

IEEE ACM Trans. Audio Speech Lang. Process., 2015

Rating Entities and Aspects Using a Hierarchical Model.

Xun Wang, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the Advances in Knowledge Discovery and Data Mining, 2015

Empty Category Detection With Joint Context-Label Embeddings.

Xun Wang, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the NAACL HLT 2015, The 2015 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Denver, Colorado, USA, May 31, 2015

A Dynamic Programming Algorithm for Tree Trimming-based Text Summarization.

Masaaki Nishino, Norihito Yasuda, Tsutomu Hirao, Shin-ichi Minato, Masaaki Nagata

Proceedings of the NAACL HLT 2015, The 2015 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Denver, Colorado, USA, May 31, 2015

Empty Category Detection using Path Features and Distributed Case Frames.

Shunsuke Takeno, Masaaki Nagata, Kazuhide Yamamoto

Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing, 2015

Hybrid Approach to PDTB-styled Discourse Parsing for CoNLL-2015.

Yasuhisa Yoshida, Katsuhiko Hayashi, Tsutomu Hirao, Masaaki Nagata

Proceedings of the 19th Conference on Computational Natural Language Learning: Shared Task, 2015

Enhanced Word Embeddings from a Hierarchical Neural Language Model.

Xun Wang, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the 24th ACM International Conference on Information and Knowledge Management, 2015

Chinese-to-Japanese Patent Machine Translation based on Syntactic Pre-ordering forWAT 2015.

Katsuhito Sudoh, Masaaki Nagata

Proceedings of the 2nd Workshop on Asian Translation, 2015

Word-based Japanese typed dependency parsing with grammatical function analysis.

Takaaki Tanaka, Masaaki Nagata

Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing of the Asian Federation of Natural Language Processing, 2015

A Unified Learning Framework of Skip-Grams and Global Vectors.

Jun Suzuki, Masaaki Nagata

Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing of the Asian Federation of Natural Language Processing, 2015

Discriminative Preordering Meets Kendall's Tau Maximization.

Sho Hoshino, Yusuke Miyao, Katsuhito Sudoh, Katsuhiko Hayashi, Masaaki Nagata

Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing of the Asian Federation of Natural Language Processing, 2015

BDD-Constrained Search: A Unified Approach to Constrained Shortest Path Problems.

Masaaki Nishino, Norihito Yasuda, Shin-ichi Minato, Masaaki Nagata

Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, 2015

2014

Accelerating Graph Adjacency Matrix Multiplications with Adjacency Forest.

Masaaki Nishino, Norihito Yasuda, Shin-ichi Minato, Masaaki Nagata

Proceedings of the 2014 SIAM International Conference on Data Mining, 2014

The NAIST-NTT TED talk treebank.

Graham Neubig, Katsuhito Sudoh, Yusuke Oda, Kevin Duh, Hajime Tsukada, Masaaki Nagata

Proceedings of the 11th International Workshop on Spoken Language Translation: Papers, 2014

Dependency-based Discourse Parser for Single-Document Summarization.

Yasuhisa Yoshida, Jun Suzuki, Tsutomu Hirao, Masaaki Nagata

Proceedings of the 2014 Conference on Empirical Methods in Natural Language Processing, 2014

Japanese-to-English patent translation system based on domain-adapted word segmentation and post-ordering.

Katsuhito Sudoh, Masaaki Nagata, Shinsuke Mori, Tatsuya Kawahara

Proceedings of the 11th Conference of the Association for Machine Translation in the Americas: MT Researchers Track, 2014

Single Document Summarization based on Nested Tree Structure.

Yuta Kikuchi, Tsutomu Hirao, Hiroya Takamura, Manabu Okumura, Masaaki Nagata

Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics, 2014

Fused Feature Representation Discovery for High-Dimensional and Sparse Data.

Jun Suzuki, Masaaki Nagata

Proceedings of the Twenty-Eighth AAAI Conference on Artificial Intelligence, 2014

A Sparse Parameter Learning Method for Probabilistic Logic Programs.

Masaaki Nishino, Akihiro Yamamoto, Masaaki Nagata

Proceedings of the Statistical Relational Artificial Intelligence, 2014

2013

Managing information disparity in multilingual document collections.

Kevin Duh, Ching-man Au Yeung, Tomoharu Iwata, Masaaki Nagata

ACM Trans. Speech Lang. Process., 2013

Syntax-Based Post-Ordering for Efficient Japanese-to-English Translation.

Katsuhito Sudoh, Xianchao Wu, Kevin Duh, Hajime Tsukada, Masaaki Nagata

ACM Trans. Asian Lang. Inf. Process., 2013

Adaptive semi-supervised learning on labeled and unlabeled data with different distributions.

Akinori Fujino, Naonori Ueda, Masaaki Nagata

Knowl. Inf. Syst., 2013

Effects of Parsing Errors on Pre-Reordering Performance for Chinese-to-Japanese SMT.

Dan Han, Pascual Martínez-Gómez, Yusuke Miyao, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the 27th Pacific Asia Conference on Language, Information and Computation, 2013

NTT-NII Statistical Machine Translation for NTCIR-10 PatentMT.

Katsuhito Sudoh, Jun Suzuki, Hajime Tsukada, Masaaki Nagata, Sho Hoshino, Yusuke Miyao

Proceedings of the 10th NTCIR Conference on Evaluation of Information Access Technologies, 2013

Two-Stage Pre-ordering for Japanese-to-English Statistical Machine Translation.

Sho Hoshino, Yusuke Miyao, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the Sixth International Joint Conference on Natural Language Processing, 2013

Statistical Parsing with Probabilistic Symbol-Refined Tree Substitution Grammars.

Hiroyuki Shindo, Yusuke Miyao, Akinori Fujino, Masaaki Nagata

Proceedings of the IJCAI 2013, 2013

Using unlabeled dependency parsing for pre-reordering for Chinese-to-Japanese statistical machine translation.

Dan Han, Pascual Martínez-Gómez, Yusuke Miyao, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the Second Workshop on Hybrid Approaches to Translation, 2013

Noise-Aware Character Alignment for Bootstrapping Statistical Machine Transliteration from Bilingual Corpora.

Katsuhito Sudoh, Shinsuke Mori, Masaaki Nagata

Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing, 2013

Single-Document Summarization as a Tree Knapsack Problem.

Tsutomu Hirao, Yasuhisa Yoshida, Masaaki Nishino, Norihito Yasuda, Masaaki Nagata

Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing, 2013

Shift-Reduce Word Reordering for Machine Translation.

Katsuhiko Hayashi, Katsuhito Sudoh, Hajime Tsukada, Jun Suzuki, Masaaki Nagata

Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing, 2013

Sub-sentence Extraction Based on Combinatorial Optimization.

Norihito Yasuda, Masaaki Nishino, Tsutomu Hirao, Masaaki Nagata

Proceedings of the Advances in Information Retrieval, 2013

Text Summarization while Maximizing Multiple Objectives with Lagrangian Relaxation.

Masaaki Nishino, Norihito Yasuda, Tsutomu Hirao, Jun Suzuki, Masaaki Nagata

Proceedings of the Advances in Information Retrieval, 2013

Supervised Model Learning with Feature Grouping based on a Discrete Constraint.

Jun Suzuki, Masaaki Nagata

Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics, 2013

Latent Semantic Matching: Application to Cross-language Text Categorization without Alignment Information.

Tsutomu Hirao, Tomoharu Iwata, Masaaki Nagata

Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics, 2013

Constructing a Practical Constituent Parser from a Japanese Treebank with Function Labels.

Takaaki Tanaka, Masaaki Nagata

Proceedings of the Fourth Workshop on Statistical Parsing of Morphologically-Rich Languages, 2013

2012

Zero Pronoun Resolution can Improve the Quality of J-E Translation.

Hirotoshi Taira, Katsuhito Sudoh, Masaaki Nagata

Proceedings of the Sixth Workshop on Syntax, 2012

Head Finalization Reordering for Chinese-to-Japanese Machine Translation.

Dan Han, Katsuhito Sudoh, Xianchao Wu, Kevin Duh, Hajime Tsukada, Masaaki Nagata

Proceedings of the Sixth Workshop on Syntax, 2012

The Effect of Learner Corpus Size in Grammatical Error Correction of ESL Writings.

Tomoya Mizumoto, Yuta Hayashibe, Mamoru Komachi, Masaaki Nagata, Yuji Matsumoto

Proceedings of the COLING 2012, 2012

A Comparative Study of Target Dependency Structures for Statistical Machine Translation.

Xianchao Wu, Katsuhito Sudoh, Kevin Duh, Hajime Tsukada, Masaaki Nagata

Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, Proceedings of the Conference, July 8-14, 2012, Jeju Island, Korea, 2012

Bayesian Symbol-Refined Tree Substitution Grammars for Syntactic Parsing.

Hiroyuki Shindo, Yusuke Miyao, Akinori Fujino, Masaaki Nagata

Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, Proceedings of the Conference, July 8-14, 2012, Jeju Island, Korea, 2012

Learning to Translate with Multiple Objectives.

Kevin Duh, Katsuhito Sudoh, Xianchao Wu, Hajime Tsukada, Masaaki Nagata

Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, Proceedings of the Conference, July 8-14, 2012, Jeju Island, Korea, 2012

2011

Assisting cross-lingual editing in collaborative writing.

Ching-man Au Yeung, Kevin Duh, Masaaki Nagata

SIGWEB Newsl., 2011

NTT-UT Statistical Machine Translation in NTCIR-9 PatentMT.

Katsuhito Sudoh, Kevin Duh, Hajime Tsukada, Masaaki Nagata, Xianchao Wu, Takuya Matsuzaki, Jun'ichi Tsujii

Proceedings of the 9th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, 2011

NTTCS Textual Entailment Recognition System for NTCIR-9 RITE.

Yasuhiro Akiba, Hirotoshi Taira, Sanae Fujita, Kaname Kasahara, Masaaki Nagata

Proceedings of the 9th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, 2011

Extracting Pre-ordering Rules from Chunk-based Dependency Trees for Japanese-to-English Translation.

Xianchao Wu, Katsuhito Sudoh, Kevin Duh, Hajime Tsukada, Masaaki Nagata

Proceedings of Machine Translation Summit XIII: Papers, 2011

Post-ordering in Statistical Machine Translation.

Katsuhito Sudoh, Xianchao Wu, Kevin Duh, Hajime Tsukada, Masaaki Nagata

Proceedings of Machine Translation Summit XIII: Papers, 2011

Extracting Pre-ordering Rules from Predicate-Argument Structures.

Xianchao Wu, Katsuhito Sudoh, Kevin Duh, Hajime Tsukada, Masaaki Nagata

Proceedings of the Fifth International Joint Conference on Natural Language Processing, 2011

Distributed Minimum Error Rate Training of SMT using Particle Swarm Optimization.

Jun Suzuki, Kevin Duh, Masaaki Nagata

Proceedings of the Fifth International Joint Conference on Natural Language Processing, 2011

Mining Revision Log of Language Learning SNS for Automated Japanese Error Correction of Second Language Learners.

Tomoya Mizumoto, Mamoru Komachi, Masaaki Nagata, Yuji Matsumoto

Proceedings of the Fifth International Joint Conference on Natural Language Processing, 2011

Error Correcting Romaji-kana Conversion for Japanese Language Education.

Seiji Kasahara, Mamoru Komachi, Masaaki Nagata, Yuji Matsumoto

Proceedings of the Workshop on Advances in Text Input Methods, 2011

Generalized Minimum Bayes Risk System Combination.

Kevin Duh, Katsuhito Sudoh, Xianchao Wu, Hajime Tsukada, Masaaki Nagata

Proceedings of the Fifth International Joint Conference on Natural Language Processing, 2011

Providing Cross-Lingual Editing Assistance to Wikipedia Editors.

Ching-man Au Yeung, Kevin Duh, Masaaki Nagata

Proceedings of the Computational Linguistics and Intelligent Text Processing, 2011

Learning Condensed Feature Representations from Large Unsupervised Data Sets for Supervised Learning.

Jun Suzuki, Hideki Isozaki, Masaaki Nagata

Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, Proceedings of the Conference, 19-24 June, 2011, Portland, Oregon, USA, 2011

Insertion Operator for Bayesian Tree Substitution Grammars.

Hiroyuki Shindo, Akinori Fujino, Masaaki Nagata

Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, Proceedings of the Conference, 19-24 June, 2011, Portland, Oregon, USA, 2011

Is Machine Translation Ripe for Cross-Lingual Sentiment Classification?

Kevin Duh, Akinori Fujino, Masaaki Nagata

Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, Proceedings of the Conference, 19-24 June, 2011, Portland, Oregon, USA, 2011

Transfer Learning for Multiple-Domain Sentiment Analysis - Identifying Domain Dependent/Independent Word Polarity.

Yasuhisa Yoshida, Tsutomu Hirao, Tomoharu Iwata, Masaaki Nagata, Yuji Matsumoto

Proceedings of the Twenty-Fifth AAAI Conference on Artificial Intelligence, 2011

2010

Divide and Translate: Improving Long Distance Reordering in Statistical Machine Translation.

Katsuhito Sudoh, Kevin Duh, Hajime Tsukada, Tsutomu Hirao, Masaaki Nagata

Proceedings of the Joint Fifth Workshop on Statistical Machine Translation and MetricsMATR, 2010

N-Best Reranking by Multitask Learning.

Kevin Duh, Katsuhito Sudoh, Hajime Tsukada, Hideki Isozaki, Masaaki Nagata

Proceedings of the Joint Fifth Workshop on Statistical Machine Translation and MetricsMATR, 2010

Enriching Dictionaries with Images from the Internet - Targeting Wikipedia and a Japanese Semantic Lexicon: Lexeed -.

Sanae Fujita, Masaaki Nagata

Proceedings of the COLING 2010, 2010

A robust semi-supervised classification method for transfer learning.

Akinori Fujino, Naonori Ueda, Masaaki Nagata

Proceedings of the 19th ACM Conference on Information and Knowledge Management, 2010

Exploring the Visual Annotatability of Query Concepts for Interactive Cross-Language Information Retrieval.

Yoshihiko Hayashi, Masaaki Nagata, Savas Ali Bora

Proceedings of the Information Retrieval Technology, 2010

Predicate Argument Structure Analysis Using Transformation Based Learning.

Hirotoshi Taira, Sanae Fujita, Masaaki Nagata

Proceedings of the ACL 2010, 2010

Word Alignment with Synonym Regularization.

Hiroyuki Shindo, Akinori Fujino, Masaaki Nagata

Proceedings of the ACL 2010, 2010

Constructing Large-Scale Person Ontology from Wikipedia.

Yumi Shibaki, Masaaki Nagata, Kazuhide Yamamoto

Proceedings of the 2nd Workshop on The People's Web Meets NLP: Collaboratively Constructed Semantic Resources@COLING 2010, 2010

2009

Utilizing Features of Verbs in Statistical Zero Pronoun Resolution for Japanese Speech.

Sen Yoshida, Masaaki Nagata

Proceedings of the 23rd Pacific Asia Conference on Language, Information and Computation, 2009

BaseNP Supersense Tagging for Japanese Texts.

Hirotoshi Taira, Sen Yoshida, Masaaki Nagata

Proceedings of the 23rd Pacific Asia Conference on Language, Information and Computation, 2009

Utilizing Images for Assisting Cross-Language Information Retrieval on the Web.

Yoshihiko Hayashi, Savas Ali Bora, Masaaki Nagata

Proceedings of the 2009 IEEE/WIC/ACM International Conference on Web Intelligence and International Conference on Intelligent Agent Technology, 2009

2008

NAIST-NTT System Description for Patent Translation Task at NTCIR-7.

Mamoru Komachi, Masaaki Nagata, Yuji Matsumoto

Proceedings of the 7th NTCIR Workshop Meeting on Evaluation of Information Access Technologies: Information Retrieval, 2008

A Japanese Predicate Argument Structure Analysis using Decision Lists.

Hirotoshi Taira, Sanae Fujita, Masaaki Nagata

Proceedings of the 2008 Conference on Empirical Methods in Natural Language Processing, 2008

2006

Phrase reordering for statistical machine translation based on predicate-argument structure.

Mamoru Komachi, Yuji Matsumoto, Masaaki Nagata

Proceedings of the 2006 International Workshop on Spoken Language Translation, 2006

A Clustered Global Phrase Reordering Model for Statistical Machine Translation.

Masaaki Nagata, Kuniko Saito, Kazuhide Yamamoto, Kazuteru Ohashi

Proceedings of the ACL 2006, 2006

2005

NUT-NTT statistical machine translation system for IWSLT 2005.

Kazuteru Ohashi, Kazuhide Yamamoto, Kuniko Saito, Masaaki Nagata

Proceedings of the 2005 International Workshop on Spoken Language Translation, 2005

Portable Translator Capable of Recognizing Characters on Signboard and Menu Captured by its Built-in Camera.

Hideharu Nakajima, Yoshihiro Matsuo, Masaaki Nagata, Kuniko Saito

Proceedings of the ACL 2005, 2005

2004

Efficient Decoding for Statistical Machine Translation with a Fully Expanded WFST Model.

Hajime Tsukada, Masaaki Nagata

Proceedings of the 2004 Conference on Empirical Methods in Natural Language Processing , 2004

2003

Improving translation models by applying asymmetric learning.

Setsuo Yamada, Masaaki Nagata, Kenji Yamada

Proceedings of Machine Translation Summit IX: Papers, 2003

Estimating Japanese word accent from syllable sequence using support vector machine.

Hideharu Nakajima, Masaaki Nagata, Hisako Asano, Masanobu Abe

Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Say-as classification for alphabetic words in Japanese texts.

Hisako Asano, Masaaki Nagata, Masanobu Abe

Proceedings of the 8th European Conference on Speech Communication and Technology, EUROSPEECH 2003, 2003

Multi-Language Named-Entity Recognition System based on HMM.

Kuniko Saito, Masaaki Nagata

Proceedings of the Workshop on Multilingual and Mixed-language Named Entity Recognition, 2003

2001

Using the Web as a Bilingual Dictionary.

Masaaki Nagata, Teruka Saito, Kenji Suzuki

Proceedings of the ACL Workshop on Data-Driven Methods in Machine Translation, 2001

2000

Synchronous Morphological Analysis of Grapheme and Phoneme for Japanese OCR.

Masaaki Nagata

Proceedings of the 38th Annual Meeting of the Association for Computational Linguistics, 2000

1999

A Part of Speech Estimation Method for Japanese Unknown Words using a Statistical Model of Morphology and Context.

Masaaki Nagata

Proceedings of the 27th Annual Meeting of the Association for Computational Linguistics, 1999

1998

Japanese OCR Error Correction using Character Shape Similarity and Statistical Language Model.

Masaaki Nagata

Proceedings of the 36th Annual Meeting of the Association for Computational Linguistics and 17th International Conference on Computational Linguistics, 1998

1997

A Self-Organizing Japanese Word Segmenter using Heuristic Word Identification and Re-estimation.

Masaaki Nagata

Proceedings of the Fifth Workshop on Very Large Corpora, 1997

1996

Automatic acquisition of probabilistic dialogue models.

Kenji Kita, Yoshikazu Fukui, Masaaki Nagata, Tsuyoshi Morimoto

Proceedings of the 4th International Conference on Spoken Language Processing, 1996

Automatic Extraction of New Words from Japanese Texts using Generalized Forward-Backward Search.

Masaaki Nagata

Proceedings of the Conference on Empirical Methods in Natural Language Processing, 1996

Context-Based Spelling Correction for Japanese OCR.

Masaaki Nagata

Proceedings of the 16th International Conference on Computational Linguistics, 1996

1994

First steps towards statistical modeling of dialogue to predict the speech act type of the next utterance.

Masaaki Nagata, Tsuyoshi Morimoto

Speech Communication, 1994

A stochastic morphological analyzer for spontaneously spoken languages.

Masaaki Nagata

Proceedings of the 3rd International Conference on Spoken Language Processing, 1994

Efficient chart parsing of speech recognition candidates.

Toshihisa Tashiro, Toshiyuki Takezawa, Tsuyoshi Morimoto, Masaaki Nagata

Proceedings of ICASSP '94: IEEE International Conference on Acoustics, 1994

A Stochastic Japanese Morphological Analyzer Using a Forward-DP Backward-A* N-Best Search Algorithm.

Masaaki Nagata

Proceedings of the 15th International Conference on Computational Linguistics, 1994

1993

ATR's speech translation system: ASURA.

Tsuyoshi Morimoto, Toshiyuki Takezawa, Fumihiro Yato, Shigeki Sagayama, Toshihisa Tashiro, Masaaki Nagata, Akira Kurematsu

Proceedings of the Third European Conference on Speech Communication and Technology, 1993

Spoken Language Translation System.

Gen-ichiro Kikui, Mark Seligman, Toshiyuki Takezawa, Masami Suzuki, Kenji Kita, Tsuyoshi Morimoto, Masaaki Nagata, Toshihisa Tashiro, Herbert S. Tropf, Shigeki Sagayama, Jun-ichi Takami, Kazumi Ohkura, Akira Kurematsu

Proceedings of the 13th International Joint Conference on Artificial Intelligence. Chambéry, France, August 28, 1993

1992

Using pragmatics to rule out recognition errors in cooperative task-oriented dialogues.

Masaaki Nagata

Proceedings of the Second International Conference on Spoken Language Processing, 1992

Enhancement of ATR's spoken language translation system: SL-TRANS2.

Tsuyoshi Morimoto, Toshiyuki Takezawa, Kazumi Ohkura, Masaaki Nagata, Fumihiro Yato, Shigeki Sagayama, Akira Kurematsu

Proceedings of the Second International Conference on Spoken Language Processing, 1992

An Empirical Study on Rule Granularity and Unification Interleaving Toward an Efficient Unification-Based Parsing System.

Masaaki Nagata

Proceedings of the 14th International Conference on Computational Linguistics, 1992

A Spoken Language Translation System: SL-TRANS2.

Tsuyoshi Morimoto, Masami Suzuki, Toshiyuki Takezawa, Gen-ichiro Kikui, Masaaki Nagata, Mutsuko Tomokiyo

Proceedings of the 14th International Conference on Computational Linguistics, 1992

1990

HPSG-Based Lattice Parser for Spoken Japanese in a Spoken Language Translation System.

Masaaki Nagata, Kiyoshi Kogure

Proceedings of the 9th European Conference on Artificial Intelligence, 1990

1989

Word and monosyllable recognition using lifters on two-dimensional cepstrum.

Yasuo Ariki, Masaaki Nagata, Toshiyuki Sakai

Syst. Comput. Jpn., 1989

1987

Spoken word recognition using statistic and dynamic information obtained by two-dimensional cepstrum analysis.

Yasuo Ariki, S. Mizuta, Masaaki Nagata, Toshiyuki Sakai

Proceedings of the European Conference on Speech Technology, 1987