Naoki Yoshinaga's Publications

Journal Articles

Kazuhiko Yasuda, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
Generating Diverse Adversarial Examples using Denoising Autoencoder
DBSJ Japanese Journal. vol. 18-J, num. 4. March, 2020. (In Japanese)

Tatsuya Iwanari, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
Inducing Writers' Values on Concept Ordering from Microblog
DBSJ Journal. vol. 16, num. 2. pp. 7-12. March, 2018.

Shonosuke Ishiwatari, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
Translation of Word Vectors by Exploiting Translatable Context Pairs
Transactions of the Japanese Society for Artificial Intelligence. vol. 31, num. 4. 2016. (In Japanese)

Takashi Kawamoto, Masashi Toyoda, and Naoki Yoshinaga
Detecting Information Cascades with Social Influence from Microblogs
IPSJ Transactions on Databases. vol. 70. 2016. (In Japanese)

Toshiharu Nishina, Naoki Yoshinaga, Nobuhiro Kaji, Masashi Toyoda
On-Demand Acquisition of Knowledge on Concept Ordering
DBSJ Japanese Journal. vol. 13-J, num. 1. pp. 13--18. October, 2014. (In Japanese)

Wenliang Gao, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
Collective Sentiment Classification based on User Leniency and Product Popularity
Journal of Natural Language Processing. vol. 21, num. 3. pp. 541--561. June, 2014

Yong Ren, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
Sentiment Classification in Under-Resourced Languages Using Graph-based Semi-supervised Learning Methods
IEICE Transactions on Information and Systems. vol. E97-D, num. 4. pp. 790--797. April, 2014

Toshiharu Nishina, Naoki Yoshinaga, Nobuhiro Kaji, Masashi Toyoda
Ordering Concepts by Using Concept-Adjective Co-occurrences
DBSJ Journal. vol. 12, num. 3. pp. 7-12. February, 2014. (In Japanese)

Takayuki Hasegawa, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
Predicting and Evoking Listener's Emotion in Online Dialogue
Transactions of the Japanese Society for Artificial Intelligence. vol. 29, num. 1. pp. 90--99. 2014. (In Japanese)

Naoya Nakashima, Naoki Yoshinaga, Nobuhiro Kaji, Masashi Toyoda, and Masaru Kitsuregawa
Time-specific Event-chain Acquisition
DBSJ Journal. vol. 12, num. 1. pp. 103-108. June, 2013. (In Japanese)

Yohei Takaku, Naoki Yoshinaga, Nobuhiro Kaji, Masashi Toyoda, and Masaru Kitsuregawa
Identifying Constant and Unique Relations by using Time-Series Texts
IEICE Transactions on Information and Systems. vol. J96-D, num. 3. pp. 411--422. March, 2013. (In Japanese)

Masahiko Itoh, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
3D Visualization System for Temporal Changes in Blog Users' Activities and Interests based on Dependency Analysis
IEICE Transactions on Information and Systems. vol. J95-D, num. 7. pp. 1454--1466. July, 2012. (In Japanese)

Naoki Yoshinaga and Masaru Kitsuregawa
Efficient Classification with Conjunctive Features
Journal of Information Processing, Special Issue on IT Infrastructures for Info-plosion. vol. 20, num. 1. pp. 228--237. January, 2012
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Hideaki Muramoto, Nobuhiro Kaji, Naoki Yoshinaga, Masaru Kitsuregawa
Semi-automatically Building Linguistic Resources for Word Sense Disambiguation of Web Text
Journal of Information Processing Society of Japan. vol. 52, num. 12. pp. 3338--3348. December, 2011. (In Japanese)

Asuka Sumida, Naoki Yoshinaga, and Kentaro Torisawa
Hyponymy Relation Acquisition from Hierarchical Layouts in Wikipedia
Journal of Natural Language Processing. vol. 16, num. 3. pp. 3_3--3_24. July, 2009. (In Japanese). 2009 Best Paper Award

Shiro Tabuchi, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
Mining Word Sense from Large Corpora
DBSJ Journal. vol. 8, num. 1. pp. 77--82. June, 2009. (In Japanese)

Naoki Yoshinaga and Kentaro Torisawa
Finding Specification Pages from the Web
Transactions of the Japanese Society for Artificial Intelligence. vol. 21, num. 6. pp. 493--501. 2006. (In Japanese)
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Naoki Yoshinaga, Yusuke Miyao, Kentaro Torisawa, and Jun'ichi Tsujii
Parsing Comparison across Grammar Formalisms using Strongly Equivalent Grammars
Journal of Traitement Automatique des Langues, Special Issue on Evolutions in Parsing. vol. 44, num. 3. pp. 15--39. 2003
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Naoki Yoshinaga and Yusuke Miyao
Grammar Conversion from LTAG to HPSG
European Student Journal on Language and Speech, a special issue on the language sections of the 6th ESSLLI student session. 2002. Online journal available at HLTheses
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Refereed Conference & Workshop Papers

Jin Sakuma and Naoki Yoshinaga
Multilingual model using cross-task embedding projection
Proceedings of the 23rd Conference on Computational Language Learning (CoNLL 2019). Hong Kong. November, 2019 (Accepted)

Masato Neishi and Naoki Yoshinaga
On the Relation between Position Information and Sentence Length in Neural Machine Translation
Proceedings of the 23rd Conference on Computational Language Learning (CoNLL 2019). Hong Kong. November, 2019 (Accepted)

Amane Sugiyama and Naoki Yoshinaga
Data augmentation using back-translation for context-aware neural machine translation
Proceedings of the fourth Workshop on Discourse in Machine Translation (DiscoMT 2019). Hong Kong. November, 2019 (Accepted)

Satoshi Akasaki, Naoki Yoshinaga, and Masashi Toyoda
Early Discovery of Emerging Entities in Microblogs
Proceedings of the 28th International Joint Conference on Artificial Intelligence (IJCAI 2019). pp. 4882--4889. Macao, China. August, 2019

Shonosuke Ishiwatari, Hiroaki Hayashi, Naoki Yoshinaga, Graham Neubig, Shoetsu Sato, Masashi Toyoda, Masaru Kitsuregawa
Learning to Describe Unknown Phrases with Local and Global Contexts
Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (NAACL-HLT 2019; long, oral), pp. 3467--3476. Minneapolis, Minnesota. June, 2019

Daisuke Oba, Naoki Yoshinaga, Shoetsu Sato, Satoshi Akasaki, and Masashi Toyoda
Modeling Personal Biases in Language Use by Inducing Personalized Word Embeddings
Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (NAACL-HLT 2019; short, oral), pp. 2102--2108. Minneapolis, Minnesota. June, 2019

Jin Sakuma, and Naoki Yoshinaga
Cross-lingual Word Embeddings Based on Subword Alignment
Proceedings of the 20th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing 2019). La Rochelle, France. April, 2019

Daisuke Oba, Naoki Yoshinaga, Shoetsu Sato, Satoshi Akasaki, and Masashi Toyoda
Understanding Interpersonal Variations in Word Meanings via Review Target Identification
Proceedings of the 20th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing 2019). La Rochelle, France. April, 2019

Masahiko Itoh, Takeshi Sagara, Ukyo Suzuki, Kazutoshi Umemoto, Naoki Yoshinaga, Masashi Toyoda, Koji Zettsu, and Masaru Kitsuregawa
Information Integrated Visualization System for Heavy Rainfall Risk Analysis
Proceedings of the 11th IEEE Pacific Visualization Symposium (PacificVis 2018; poster). Kobe, Japan. August, 2018

Masato Neishi, Jin Sakuma, Satoshi Tohda, Shonosuke Ishiwatari, Naoki Yoshinaga, and Masashi Toyoda
A Bag of Useful Tricks for Practical Neural Machine Translation: Embedding Layer Initialization and Large Batch Size
Proceedings of the 4th Workshop on Asian Translation (WAT 2017), pages 99--109. Taipei, Taiwan. November, 2017

Hongshan Jin, Masashi Toyoda, and Naoki Yoshinaga
Can Cross-Lingual Information Cascades Be Predicted on Twitter?
Proceedings of the 9th International Conference on Social Informatics (SocInfo 2017). pp. 457--472. Oxford, UK. September, 2017

Shoetsu Sato, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
Modeling Situations in Neural Chat Bots
Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics Student Research Workshop (ACL 2017 SRW), pp. 120--127. Vancouver, Canada. August, 2017

Shonosuke Ishiwatari, Jingtao Yao, Shujie Liu, Mu Li, Ming Zhou, Naoki Yoshinaga, Masaru Kitsuregawa and Weijia Jia
Chunk-based Decoder for Neural Machine Translation
Proceedings of the 55th Annual Meeting of the Association for Computational Linguistics (ACL 2017; long), pp. 1901--1912. Vancouver, Canada. August, 2017

Tatsuya Iwanari, Kohei Ohara, Naoki Yoshinaga, Nobuhiro Kaji, Masashi Toyoda and Masaru Kitsuregawa
Kotonush: Understanding Concepts Based on Values behind Social Media
Proceedings of the 26th International Conference on Computational Linguistics (COLING 2016) system demonstrations. pp. 292--296. Osaka, Japan. December, 2016.

Tatsuya Iwanari, Naoki Yoshinaga, Nobuhiro Kaji, Toshiharu Nishina, Masashi Toyoda and Masaru Kitsuregawa
Ordering Concepts Based on Common Attribute Intensity
Proceedings of the 25th International Joint Conference on Artificial Intelligence (IJCAI 2016). pp. 3747--3753. New York City, NY, USA. July, 2016

Masahiko Itoh, Naoki Yoshinaga, and Masashi Toyoda
Word-Clouds in the Sky: Multi-layer Spatio-temporal Event Visualization from a Geo-parsed Microblog Stream
Proceedings of the 20th International Conference Information Visualisation (IV 2016). pp. 282--289. Lisbon, Portugal. July, 2016

Shonosuke Ishiwatari, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
Instant Translation Model Adaptation by Translating Unseen Words in Continuous Vector Space
Proceedings of the 17th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing 2016). Konya, Turkey. April, 2016

Masahiko Itoh, Naoki Yoshinaga, and Masashi Toyoda
Spatio-temporal Event Visualization from a Geo-parsed Microblog Stream
Proceedings of the 21st ACM International Conference on Intelligent User Interfaces (IUI 2016) (poster). pp. 58--61. Sonoma, CA, USA. 2016

Takashi Kawamoto, Masashi Toyoda, and Naoki Yoshinaga
Towards Early Detection of Socially Influential Information Cascade in Microblogs
WebDB Forum. Tokyo. November, 2015. (In Japanese)

Shonosuke Ishiwatari, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
Accurate Cross-lingual Projection between Count-based Word Vectors by Exploiting Translatable Context Pairs
Proceedings of the 19th Conference on Computational Language Learning (CoNLL 2015). pp. 300-304. Beijing, China, July, 2015

Shonosuke Ishiwatari, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
Translating Vector Representations for Words using Language Resources on the Web
WebDB Forum. Tokyo. November, 2014. (In Japanese)

Naoki Yoshinaga and Masaru Kitsuregawa
A Self-adaptive Classifier for Efficient Text-stream Processing
Proceedings of the 25th International Conference on Computational Linguistics (COLING 2014). pp. 1091--1102. Dublin, Ireland. August, 2014
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Toshiharu Nishina, Naoki Yoshinaga, Nobuhiro Kaji, and Masashi Toyoda
Ordering Concepts by Using Concept-Adjective Co-occurrences
WebDB Forum. Kyoto. November, 2013. (In Japanese)
Student Incentive Award

Wenliang Gao, Naoki Yoshinaga, Nobuhiro Kaji, and Masaru Kitsuregawa
Collective Sentiment Classification based on User Leniency and Product Popularity
Proceedings of the 27th Pacific Asia Conference on Language, Information, and Computation (PACLIC 27). pp. 357-365. Taipei, Taiwan. November, 2013

Wenliang Gao, Naoki Yoshinaga, Nobuhiro Kaji, and Masaru Kitsuregawa
Modeling User Leniency and Product Popularity for Sentiment Classification
In Proceedings of the sixth International Joint Conference on Natural Language Processing (IJCNLP 2013). pp. 1107-1111. Nagoya, Japan. October, 2013

Takayuki Hasegawa, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
Predicting and Eliciting Addressee's Emotion in Online Dialogue
In Proceedings of the 51st Annual Meeting of the Association for Computational Linguistics (ACL 2013; long). pp. 964-972. Sofia, Bulgaria. August, 2013

Yohei Takaku, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
Identifying Constant and Unique Relations by using Time-Series Text
Proceedings of the 2012 Conference on Empirical Methods in Natural Language Processing (EMNLP 2012). pp. 883--892. Jeju, Korea. July, 2012

Masahiko Itoh, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
Analysis and Visualization of Temporal Changes in Bloggers' Activities and Interests
Proceedings of the fifth IEEE Pacific Visualization Symposium (PacificVis 2012). pp. 57--64. Songdo, Korea. March, 2012

Yong Ren, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
Sentiment Classification in Resource-Scarce Languages by using Label Propagation
Proceedings of the 25th Pacific Asia Conference on Language, Information and Computation (PACLIC 25). pp. 420--429. Singapore. December, 2011

Masahiko Itoh, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
3D Visualization of Temporal Changes in Bloggers' Activities and Interests
In Proceedings of the IEEE Conference on Visual Analytics Science and Technology (IEEE VAST 2011). pp. 283--284. Providence, RI, USA. October, 2011

Naoki Yoshinaga and Masaru Kitsuregawa
Kernel Slicing: Scalable Online Training with Conjunctive Features
Proceedings of the 23rd International Conference on Computational Linguistics (COLING 2010). pp. 1245--1253. Beijing, China. August, 2010
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Nobuhiro Kaji, Yasuhiro Fujiwara, Naoki Yoshinaga and Masaru Kitsuregawa
Efficient Staggered Decoding for Sequence Labeling
Proceedings of the 48th Annual Meeting of the Association for Computational Linguistics (ACL 2010). pp. 485--494. Uppsala, Sweden. July, 2010

Naoki Yoshinaga and Masaru Kitsuregawa. Polynomial to Linear: Efficient Classification with Conjunctive Features
Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing (EMNLP 2009). pp. 1542--1551. Singapore. August, 2009
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Naoki Yoshinaga
Towards Accurate Probabilistic Lexicons for Lexicalized Grammars
Proceedings of the ninth International Workshop on Tree Adjoining Grammars and Related Formalisms (TAG+9). pp. 165--172. T?bingen, Germany. June, 2008
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Asuka Sumida, Naoki Yoshinaga, and Kentaro Torisawa
Boosting Precision and Recall of Hyponymy Relation Acquisition from Hierarchical Layouts in Wikipedia
Proceedings of the 6th International Conference on Language Resources and Evaluation (LREC 2008). pp. 2462--2469. Marrakech, Morocco. May, 2008

Kazumasa Nakamura, Naoki Yoshinaga, and Kentaro Torisawa
A Writing-Support Environment using Attribute-Value Information Dynamically Acquired from the Web, Proceedings of the Symposium on DataBases and Web Information Systems. Tokyo, Japan, November, 2007. (In Japanese)
Business Award (1st place)

Naoki Yoshinaga and Kentaro Torisawa
Open-Domain Attribute-Value Acquisition from Semi-Structured Texts
Proceedings of the Workshop of OntoLex07 - From Text to Knowledge: The Lexicon/Ontology Interface held at the sixth International Semantic Web Conference, pp. 55--66. Busan, South-Korea, November, 2007
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Naoki Yoshinaga, Kazumasa Nakamura, and Kentaro Torisawa
A Novel Web-oriented Writing Environment using Objects' Facts Acquired from the Web, Proceedings of the Workshop on Intelligent Web Interaction held at the IEEE/WIC/ACM Web Intelligence Conference, pp. 230--234. Silicon Valley, USA. November, 2007
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Keiji Shinzato, Satoshi Sekine, Naoki Yoshinaga, and Kentaro Torisawa
Constructing Dictionaries for Named Entity Recognition on Specific Domains from the Web
Proceedings of the Web Content Mining with Human Language Technologies workshop held at the fifth International Semantic Web Conference. Athens, GA, USA. November, 2006

Naoki Yoshinaga and Kentaro Torisawa
Finding Specification Pages According to Attributes
Proceedings of the 15th International World Wide Web Conference (WWW 2006). pp. 1021-1022. Edinburgh, UK. May, 2006
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Naoki Yoshinaga.
Improving the Accuracy of Subcategorizations Acquired from Corpora
Proceedings of the 42nd Annual Meeting of the Association for Computational Linguistics Student Research Worshop (ACL 2004 SRW), pp. 43--48. Barcelona, Spain. July, 2004
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Naoki Yoshinaga and Jun'ichi Tsujii
Generalizing Subcategorization Frames Acquired from Corpora using Lexicalized Grammars
Proceedings of the Seventh International Workshop on Tree Adjoining Grammars and Related Formalisms (TAG+7), pp. 104--110. Vancouver, Canada. May, 2004
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Kenta Oouchida, Naoki Yoshinaga and Jun'ichi Tsujii
Context-Free Approximation of LTAG towards CFG Filtering
Proceedings of the Seventh International Workshop on Tree Adjoining Grammars and Related Formalisms (TAG+7), pp. 171--177. Vancouver, Canada. May, 2004

Naoki Yoshinaga, Kentaro Torisawa, and Jun'ichi Tsujii
Comparison between CFG Filtering Techniques for LTAG and HPSG
Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics (ACL 2003) Interactive Poster/Demo Sessions, pp. 185--188. Sapporo, Japan. July, 2003
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Akane Yakushiji, Yuka Tateisi, Yusuke Miyao, Naoki Yoshinaga, and Jun'ichi Tsujii
A Debug Tool for Practical Grammar Development
Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics (ACL 2003) Interactive Poster/Demo Sessions, pp. 173--176. Sapporo, Japan. July, 2003

Naoki Yoshinaga, Yusuke Miyao, and Jun'ichi Tsujii
A Formal Proof of Strong Equivalence for a Grammar Conversion from LTAG to HPSG-style
In Proceedings of the Sixth International Workshop on Tree Adjoining Grammars and Related Formalisms (TAG+6), pp. 187--192. Venice, Italy. May, 2002
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Naoki Yoshinaga, Yusuke Miyao, Kentaro Torisawa and Jun'ichi Tsujii
Efficient LTAG Parsing using HPSG Parsers
Proceedings of the Pacific Association for Computational Linguistics (PACLING 2001), pp. 342--351. Kitakyusyu, Japan. September, 2001
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Naoki Yoshinaga and Yusuke Miyao
Grammar Conversion from LTAG to HPSG
In Proceedings of the Sixth ESSLLI Student Session, pp. 309--324. Helsinki, Finland. August, 2001
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Naoki Yoshinaga, Yusuke Miyao, Kentaro Torisawa and Jun'ichi Tsujii
Resource Sharing among HPSG and LTAG Communities by a Method of Grammar Conversion from FB-LTAG to HPSG
Proceedings of ACL/EACL Workshop on Sharing Tools and Resources for Research and Education, pp. 39--46. Toulouse, France. July, 2001
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Other Publications

Nobukazu Fukuda, Shoetsu Sato, Naoki Yoshinaga, and Masaru Kitsuregawa
Weakly-supervised Co-reference Resolution usign Internal Links in Wikipedia
Proceedings of the 25th Annual Meeting of the Association for Natural Language Processing. pp 1057--1060, Aichi. March, 2019 (In Japanese)

Satoshi Tohda and Naoki Yoshinaga
Unsupervised Identification of Quotes in Literary Text
Proceedings of the 25th Annual Meeting of the Association for Natural Language Processing. pp. 1233--1236, Aichi. March, 2019 (In Japanese)

Daisuke Oba, Shoetsu Sato, Satoshi Akasaki, Naoki Yoshinaga, and Masaru Toyoda
Towards Understanding Interpersonal Variations of Word Meanings in Language Use
Proceedings of the 25th Annual Meeting of the Association for Natural Language Processing. pp. 715--718, Aichi. March, 2019 (In Japanese)

Masato Neishi and Naoki Yoshinaga
Comparison between Seq2Seq and Transformer in English-to-Japanese Translation Task Using Swap Models
Proceedings of the 25th Annual Meeting of the Association for Natural Language Processing. pp. 1117--1120, Aichi. March, 2019 (In Japanese)

Jin Sakuma and Naoki Yoshinaga
Accurate Multilingual Model Using Cross-task Projection of Word Embeddings
Proceedings of the 25th Annual Meeting of the Association for Natural Language Processing. pp 225--228, Aichi. March, 2019 (In Japanese)

Kazuhiko Yasuda, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
Generating Diverse Adversarial Samples Using Denoising Autoencoder
Proceedings of the 11th forum on Data Engineering and Information Management (DEIM). Nagasaki. March, 2019. (In Japanese)

Sho Cho, Masashi Toyoda, and Naoki Yoshinaga
Towards Predicting Polarization of Topics in Microblogs
Proceedings of the 11th forum on Data Engineering and Information Management (DEIM). Nagasaki. March, 2019. (In Japanese)

Diasuke Oba, Naoki Yoshinaga, Satoshi Akasaki, and Masashi Toyoda
Personal Biases in Language Expressions Based on Five Senses and their Correction
The 13rd NLP Symposium for Young Researchers. Okinawa. August, 2018. (In Japanese)

Neishi Masato and Naoki Yoshinaga
Neural Machine Translation Using Multi-task training with Accurate Auto-encoders
The 13rd NLP Symposium for Young Researchers. Okinawa. August, 2018. (In Japanese)

Jin Sakuma and Naoki Yoshinaga
Accurate Multilingual Model Using Task-specific Cross-Lingual Word Embeddings
The 13rd NLP Symposium for Young Researchers. Okinawa. August, 2018. (In Japanese)

Kazuhiko Yasuda, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
Generative Model of Adversarial Samples for Expanding Training Data
The 13rd NLP Symposium for Young Researchers. Okinawa. August, 2018. (In Japanese)

Satoshi Akasaki, Naoki Yoshinaga, and Masashi Toyoda
Discovery of Novel Entities from Social Media Streams
Proceedings of the 32nd Annual Conference of the Japanese Society for Artificial Intelligence. Kagoshima. June, 2018 (In Japanese)

Kohei Ohara, Shoetsu Sato, Naoki Yoshinaga, Toyoda Masashi, and Masaru Kitsuregawa
Predicting Dialogue Acts of Responses in Online Dialogue using Hierarchical RNN
Proceedings of the 24th Annual Meeting of the Association for Natural Language Processing. pp 192--195, Okayama. March, 2018 (In Japanese)

Shonosuke Ishiwatari, Hiroaki Hayashi, Naoki Yoshinaga, Graham Neubig, Masashi Toyoda, Masaru Kitsuregawa
Definition Generation from Word Vectors using Sequence Editing Models
Proceedings of the 24th Annual Meeting of the Association for Natural Language Processing. pp. 682--685, Okayama. March, 2018 (In Japanese)

Jin Sakuma and Naoki Yoshinaga
Unsupervised Leraning of Cross-lingual Word Embeddings Exploiting Surface Similarities
IPSJ SIG Notes, NL-233. Okinawa. October, 2017. (In Japanese)

Masato Neishi, Jin Sakuma, Satoshi Tohda, Shonosuke Ishiwatari, Naoki Yoshinaga, and Masashi Toyoda
Pretraining of Embedding Layers in Neural Machine Translation
IPSJ SIG Notes, NL-233. Okinawa. October, 2017. (In Japanese)

Satoshi Akasaki, Naoki Yoshinaga, and Masashi Toyoda
Detecting Diverse Novel Entities from Social Media Streams
The 12nd NLP Symposium for Young Researchers. Okinawa. September, 2017. (In Japanese)

Shonosuke Ishiwatari, Jingtao Yao, Shujie Liu, Mu Li, Ming Zhou, Naoki Yoshinaga, Masaru Kitsuregawa and Weijia Jia
Phrase-based Decoder for Neural Machine Translation
The 12nd NLP Symposium for Young Researchers. Okinawa. September, 2017. (In Japanese)

Kohei Ohara, Shoetsu Sato, Naoki Yoshinaga, Toyoda Masashi, and Masaru Kitsuregawa
Predicting Dialogue Acts of Responses in Online Dialogue
The 12nd NLP Symposium for Young Researchers. Okinawa. September, 2017. (In Japanese)

Shoetsu Sato, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
A Neural Dialogue Model Considering Implicit Utterance Situations
Proceedings of the 31st Annual Conference of the Japanese Society for Artificial Intelligence. Nagoya. June, 2017 (In Japanese)

Shoetsu Sato, Naoki Yoshinaga, Masashi Toyoda, Masaru Kitsuregawa
A Neural Dialogue Model Considering Implicit Conversational Situations
Proceedings of the 23rd Annual Meeting of the Association for Natural Language Processing. Ibaraki. March, 2017. (In Japanese)

Kohei Ohara, Shoetsu Sato, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
Detecting Necessity of Questioning towards a Dialogue Agent Autonomously Inquiring Missing Information
Proceedings of the 9th forum on Data Engineering and Information Management (DEIM). Gifu. March, 2017. (In Japanese)

Satoshi Akasaki, Naoki Yoshinaga, and Masashi Toyoda
Discovering Emerging Entity by Capturing Occurence and Spread Process
Proceedings of the 9th forum on Data Engineering and Information Management (DEIM). Gifu. March, 2017. (In Japanese)

Mika Koizumi, Naoki Yoshinaga, Masashi Toyoda
Acquiring Posting Contexts of Images on Microblogs
Proceedings of the 9th forum on Data Engineering and Information Management (DEIM). Gifu. March, 2017. (In Japanese).

Tatsuya Iwanari, Naoki Yoshinaga, Masashi Toyoda, Masaru Kitsuregawa
Inducing Writers' Values on Concept Ordering from Microblog
Proceedings of the 9th forum on Data Engineering and Information Management (DEIM). Gifu. March, 2017. (In Japanese.

Tatsuya Iwanari, Kohei Ohara, Naoki Yoshinaga, Nobuhiro Kaji and Masashi Toyoda
COMAVa: Concept Ordering Method for Acquiring Values
The 11st NLP Symposium for Young Researchers. Wakayama. September, 2016. (In Japanese)

Satoshi Akasaki, Takashi Inui, Naoki Yoshinaga, and Masashi Toyoda
Detecting Ambiguous Unknown Entity from Text Streams
The 11st NLP Symposium for Young Researchers. Wakayama. September, 2016. (In Japanese)

Shoetsu Sato, Shonosuke Ishiwatari, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
UT Dialogue System at NTCIR-12 STC
Proceedings of NTCIR-12 Conference on Evaluation of Information Access Technologies (NTCIR-12), STC: Short Text Conversation. Tokyo. June, 2016

Shoetsu Sato, Shonosuke Ishiwatari, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa.
Response Selection for Online Dialogue by Considering Conversational Situations..
Proceedings of the 30th Annual Conference of the Japanese Society for Artificial Intelligence. Fukuoka. June, 2016

Shonosuke Ishiwatari, Naoki Yoshinaga, Masashi Toyoda, Masaru Kitsuregawa
Domain Adaptation for Statistical Machine Translation Based on Cross-lingual Projection between Count-based Word Vectors
Proceedings of the 20th Annual Meeting of the Association for Natural Language Processing. Miyagi. March, 2016. (In Japanese)

Takashi Kawamoto, Masashi Toyoda, Naoki Yoshinaga
Early Detection of Socially Influential Information Cascades from Microblogs
Proceedings of the 8th forum on Data Engineering and Information Management (DEIM). Fukuoka. March, 2016. (In Japanese)

Tatsuya Iwanari, Naoki Yoshinaga, Masashi Toyoda, Masaru Kitsuregawa
Ordering Concepts based on Adjectives by using Variuous Clues
Proceedings of the 8th forum on Data Engineering and Information Management (DEIM). Fukuoka. March, 2016. (In Japanese)

Masahiko Itoh, Naoki Yoshinaga, and Masashi Toyoda
Spatio-temporal Real-World Event Visualization by Exploiting Location-Referring Expressions a Microblog Stream
Proceedings of the 8th forum on Data Engineering and Information Management (DEIM). Fukuoka. March, 2016. (In Japanese)

Takashi Kawamoto, Masashi Toyoda, and Naoki Yoshinaga
A Study on Classification of Information Cascade in Microblogs based on Social Influence
The 10th NLP Symposium for Young Researchers. Ishikawa. September, 2015. (In Japanese)

Shonosuke Ishiwatari, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
Translation between Word Vectors by using Translatable Context Pairs
The 10th NLP Symposium for Young Researchers. Ishikawa. September, 2015. (In Japanese)

Naohiro Itoh, Naoki Yoshinaga, and Nobuhiro Kaji, Masashi Toyoda
Inducing Generalized Inference Rules by Using Thesaurus and Massive Text
Proceedings of the 7th forum on Data Engineering and Information Management (DEIM). Fukushima. March, 2015. (In Japanese)

Yu Suzuki, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
Geolocation Estimation of Microbloggers Utilizing Their Recent Posts
Proceedings of the 7th forum on Data Engineering and Information Management (DEIM). Fukushima. March, 2015. (In Japanese)

Yuma Maki, Naoki Yoshinaga, and Nobuhiro Kaji, and Masaru Kitsuregawa
Real-time Detection of Unknown Entities from Text Streams
IPSJ SIG Notes, NL-220. Fukuoka. January, 2015. (In Japanese)

Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
Annotating Microblogs with Morphological and Normalization Information
Proceedings of the 20th Annual Meeting of the Association for Natural Language Processing. Hokkaido. March, 2014. (In Japanese)

Toshiharu Nishina, Naoki Yoshinaga, Nobuhiro Kaji, and Masashi Toyoda
On-demand Acquisition of Ordering Knowledge for Concepts
Proceedings of the sixth forum on Data Engineering and Information Management (DEIM). Hyogo. March, 2014. (In Japanese)
Student Incentive Award

Toshiharu Nishina, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda
Ordering concepts using paired adjectives
IPSJ SIG Notes, NL-214. 2013. (In Japanese)

Takayuki Hasegawa, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda
Generating Utterances Eliciting Listener's Emotion
Proceedings of the 18th Annual Meeting of the Association for Natural Language Processing. Nagoya. March, 2013. (In Japanese)
Young Researcher Award

Wenliang Gao, Nobuhiro Kaji, Naoki Yoshinaga, Masaru Kitsuregawa
Sentiment Classification by Capturing User Preferences across Targets
Proceedings of the 75th National Convention of IPSJ, Sendai. 2013

Naoya Nakashima, Naoki Yoshinaga, Nobuhiro Kaji, Masashi Toyoda, Masaru Kitsuregawa
Time-specific Event-chain Acquisition
Proceedings of the fifth forum on Data Engineering and Information Management (DEIM). Koriyama. 2013. (In Japanese)

Takayuki Hasegawa, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda
Predicting Lister's Emotion in Online Dialogue
Proceedings of the fifth forum on Data Engineering and Information Management (DEIM). Koriyama. 2013. (In Japanese)

Takayuki Hasegawa, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda
Classification and Generation of Utterances Eliciting Listener's Emotion
IEICE Tech. Rep., vol. 112, no. 268, NLC2012-29, TL2012-30/NLC2012-29, pp. 25-30. Hakodate. October, 2012. (In Japanese)

Ren Yong, Nobuhiro Kaji, Naoki Yoshinaga, Masashi Toyoda, and Masaru Kitsuregawa
Semi-supervised Sentiment Classification in Resource-Scarce Language: A Comparative Study
IEICE Tech. Rep., vol. 112, no. 172, DE2012-26, pp. 59-64. Nagoya. August, 2011

Yohei Takaku, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
Classification of Entity-Entity Relations using Language-based Clues
Proceedings of the 18th Annual Meeting of the Association for Natural Language Processing. Hiroshima. March, 2012. (In Japanese)

Tomohide Fujikawa, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
Extraction of Topics and Users' Attitudes from Microblogs
Proceedings of the 74th National Convention of IPSJ, Nagoya, Aichi. March, 2012. (In Japanese)

Yong Ren, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
Mining Representative Posts in Sina Weibo
Proceedings of the 4th Forum on Data Engineering and Information Management. Kobe, Hyogo. March, 2011

Yohei Takaku, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
Classification of Entity-Entity Relations Based on Constancy and Uniqueness Proceedings of the 4th Forum on Data Engineering and Information Management. Kobe, Hyogo. March, 2011. (In Japanese)

Hongguang Zheng, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
A Study on Microblog Classification Based on Information Publicness
Proceedings of the 4th Forum on Data Engineering and Information Management. Kobe, Hyogo. March, 2011
Best Student Incentive Awards

Tomohide Fujikawa, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
Extraction of topics and Classification of Users' Attitudes toward the Topics towards Rumor Detection on Microblogs
Proceedings of the 4th Forum on Data Engineering and Information Management. Kobe, Hyogo. March, 2011. (In Japanese)

Yong Ren, Nobuhiro Kaji, Naoki Yoshinaga, Masaru Toyoda, and Masaru Kitsuregawa
Sentiment Classification in Resource Scare Language by using Label Propagation
The 6th NLP Symposium for Young Researchers. Ikoma, Nara. September, 2011

Yohei Takaku, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
Refinement of Relation Extraction using Time-Series Text
The 6th NLP Symposium for Young Researchers. Ikoma, Nara. September, 2011. (In Japanese)

Hongguang Zheng, Naoki Yoshinaga, Nobuhiro Kaji, and Masashi Toyoda
Low-Cost Training of a Tweet Classifier using Twitter Lists
The 6th NLP Symposium for Young Researchers. Ikoma, Nara. September, 2011. (In Japanese)

Yohei Takaku, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
A Study on Refinement of Relation Extraction using Time-Series Corpora
The 2nd Social Computing Symposium (SoC 2011). Tokyo. June, 2011. (In Japanese)

Hongguang Zheng, Nobuhiro Kaji, Naoki Yoshinaga, and Masashi Toyoda
A Study on Low-Cost Training of a Microblog Classifier exploiting Typical Information Sender
The 2nd Social Computing Symposium (SoC 2011). Tokyo. June, 2011. (In Japanese)

Tomohide Fujikawa, Nobuhiro Kaji, Naoki Yoshinaga, Masaru Kitsuregawa
Classification of Users' Attitudes toward Rumors on Microblogs
In IEICE Tech. Rep., vol. 111, no. 76, DE2011-10, pp. 55-60. June, 2011. (In Japanese)

Hideaki Muramoto, Nobuhiro Kaji, Naoki Yoshinaga, Masaru Kitsuregawa
Semantic Class Disambiguation of Named Entities using Wikipedia and Web Texts
Proceedings of the 17th Annual Meeting of the Association for Natural Language Processing. Toyohashi, Aichi. March, 2011. (In Japanese)

Masahiko Itoh, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
3D Visualization System for Time Sequential Changes in Blog Users' Activities and Interests
Proceedings of the 3rd Forum on Data Engineering and Information Management. Izu, Shizuoka. March, 2011. (In Japanese)
Best Paper Award

Hideaki Muramoto, Nobuhiro Kaji, Naoki Yoshinaga, Masaru Kitsuregawa
Coarse-grained Sense Disambiguation of Named Entities using Wikipedia
In Proceedings of the 3rd Forum on Data Engineering and Information Management. Izu, Shizuoka. March, 2011. (In Japanese)

Masahiko Itoh, Naoki Yoshinaga, Masashi Toyoda and Masaru Kitsuregawa
3D Visualization System for Exploring Topic Transition Based on Dependency Analysis for a Japanese Blog Archive
Proceedings of the 18th Workshop on Interactive Systems and Software (WISS 2010). (In Japanese)

Hideaki Muramoto, Nobuhiro Kaji, Naoki Yoshinaga, Masaru Kitsuregawa
Learning Semantic Tagger from Unlabeled Data
The 5th NLP Symposium for Young Researchers. Tokyo. September, 2010

Naoki Yoshinaga and Masaru Kitsuregawa
Efficient Training of Classifiers with Conjunctive Features
Proceedings of the 72nd National Convention of IPSJ, Tokyo. March, 2010. (In Japanese)
87,192 bytes, PDF

Nobuhiro Kaji, Yasuhiro Fujiwara, Naoki Yoshinaga, and Masaru Kitsuregawa
Fast and Exact incremental decoding for sequence labeling problems in NLP
Proceedings of the 72nd National Convention of IPSJ, Tokyo. March, 2010. (In Japanese)

Naoki Yoshinaga and Masaru Kitsuregawa
Efficient Classification with Conjunctive Features and Its Application to Japanese Dependency Parsing
Proceedings of the 15th Annual Meeting of the Association for Natural Language Processing. Tottori, pp. 28--31. March, 2009. (In Japanese)
350,907 bytes, PDF

Shiro Tabuchi, Nobuhiro Kaji, Naoki Yoshinaga, and Masaru Kitsuregawa
A study on the mining of word senses from huge corpus
Proceedings of the first forum on Data Engineering and Information Management (DEIM). Shizuoka, 2009. (In Japanese)

Asuka Sumida, Naoki Yoshinaga, Kentaro Torisawa, and Kentaro Mannari
Large-scale Hyponymy Relation Acquisition from Wikipedia
Proceedings of the 14th Annual Meeting of the Association for Natural Language Processing, Tokyo. March, 2008. (In Japanese)

Asuka Sumida, Naoki Yoshinaga, and Kentaro Torisawa
Hyponymy Relation Acquisition from Hierarchical Layouts in Wikipedia
Proceedings of the 70th National Convention of IPSJ, Tsukuba. March, 2008. (In Japanese)

Naoki Yoshinaga, and Kentaro Torisawa
Automatic Acquisition of Instances' Attribute-Value Information from the Web
In Proceedings of the 13th Annual Meeting of the Association for Natural Language Processing, pp. 887--890. Seta. March, 2007. (In Japanese)
211,948 bytes, PDF

Kazumasa Nakamura, Naoki Yoshinaga, and Kentaro Torisawa
An Aid System for User Writing using Referential Information Acquired from the Web
Proceedings of the 13th Annual Meeting of the Association for Natural Language Processing, pp.1125--1128. Seta. March, 2007. (In Japanese)

Keiji Shinzato, Satoshi Sekine, Naoki Yoshinaga, and Kentaro Torisawa
Automatic Recognition of Attribute Information on Restaurant Documents using NE Recognition Technique
Proceedings of the 12th Annual Meeting of the Association for Natural Language Processing, pp. 93--96. Kanagawa. March, 2006. (In Japanese)

Naoki Yoshinaga, and Kentaro Torisawa
Finding Specification Pages According to Attributes
Proceedings of the 12th Annual Meeting of the Association for Natural Language Processing, pp. 801--804. Kanagawa. March, 2006. (In Japanese)
284,848 bytes, PDF

Kenta Oouchida, Naoki Yoshinaga, and Tsujii Jun'ichi
Construction of an Efficient LTAG Parser using CFG Filtering Techniques
Proceedings of the 10th Annual Meeting of the Association for Natural Language Processing, pp. 361--364. Tokyo. March, 2004. (In Japanese)

Akane Yakushiji, Tateisi Yuka, Miyao Yusuke, Naoki Yoshinaga, and Tsujii Jun'ichi.
Debug Tool for Practical Grammar Development
IPSJ SIG Notes. NL-155, pp. 19--24. 2003. (In Japanese)

Kenta Oouchida, Naoki Yoshinaga, Takashi Ninomiya, Miyao Yusuke, and Tsujii Jun'ichi.
Classification of Lexical Entries in Lexicalized Grammars According to Their Syntactic Transformations
Proceedings of the ninth Annual Meeting of the Association for Natural Language Processing, pp. 553--556. Yokohama. March, 2003. (In Japanese)

Naoki Yoshinaga, Yusuke Miyao, Kentaro Torisawa and Jun'ichi Tsujii
LTAG Parsing using HPSG Parsers
Proceedings of the seventh Annual Meeting of the Association for Natural Language Processing, pp. 277--280. Tokyo. March, 2001. (In Japanese)
347,316 bytes, Gzipped PS

Naoki Yoshinaga, Yusuke Miyao, Tateisi Yuka, Kentaro Torisawa and Jun'ichi Tsujii
Grammar Conversion from FB-LTAG to HPSG
In Proceedings of the seventh Annual Meeting of the Association for Natural Language Processing, pp. 183--186. Ishikawa. March, 2000. (In Japanese)
257,045 bytes, Gzipped PS

Thesis

Collaborative and Corpus-Driven Approaches towards Lexicalized Grammar-based Natural Language Processing
Ph.D dissertation. University of Tokyo. March, 2005. 1,547,734 bytes, PDF (183 pages).

This thesis involves an LTAG-to-HPSG conversion (published as a journal titled `Grammar Conversion from LTAG to HPSG') and its application to parsing comparison (published as a journal titled `Parsing Comparison across Grammar Formalisms using Strongly Equivalent Grammars') as Part I, and a filtering method for subcategorization acquisition (published as a paper titled 'Improving the Accuracy of Subcategorizations Acquired from Corpora') and a PLSA-based probabilistic subcategorization lexicon (published as a paper titled `Towards Accurate Probabilistic Lexicons for Lexicalized Grammars') as Part II. The part related to grammar conversion is further elaborated through comparison to related research.

TAG-to-HPSG conversion and its applications
Master's thesis. University of Tokyo. 2002

Grammar conversion of TAG to HPSG
Bachelor's thesis. University of Tokyo. 2000

Talks

A Self-adaptive Classifier for Efficient Text-stream Processing
Talk given in the 2014 Joint Meeting for the Japanese Society for Artificial Intelligence. 20th November, 2014. (In Japanese)

Development and Distribution of Software Related to Research on Natural Language Processing
Talk given in a tutorial in the 19th Annual Meeting of the Association for Natural Language Processing. 13th March, 2013. (In Japanese; joint talk with Prof. Naoaki Okazaki and Dr. Taku Kudo.)
287,686 bytes, PDF

Efficient Machine Learning Algorithms for Large-Scale Natural Language Processing
Talk given in the 3rd ALAGIN SIG-NLP Seminar. 7th January, 2011. (In Japanese)

Attribute-Value Acquisition from the Web and Its Application
Talk given in the National Institute of Information and Communications Technology, Kyoto, Japan. 5th, November, 2008. (In Japanese)

Corpus-Driven Methods of Improving Lexical Resources for Lexicalized Grammars
Talk given in Japan Advanced Institute of Science and Technology, Ishikawa, Japan. 17th February, 2005. (In Japanese)

Parsing Comparison between LTAG and HPSG using Strongly Equivalent Grammars
Talk given in the Sussex Informatics NLCL Seminar at University of Sussex, Brighton, U.K. 23rd, October, 2003

Grammar Conversion from FB-LTAG to HPSG The first UT SLP Student Talkfest. Tokyo, Japan. 21st, September, 2001. (In Japanese)

Automatic Conversion from FB-LTAG to HPSG Talk given in the XTAG meeting at University of Pennsylvania (IRCS), Philadelphia, PA, U.S.A. 21st, September, 2000

Full List of Publications & Talks

Journal Articles

Refereed Conference & Workshop Papers

Other Publications

Thesis

Talks