YOSHINAGA Naoki (Dr)

Project Assistant Professor
E-mail: ynaga at tkl dot iis dot u-tokyo dot ac dot jp
Web-pages: JAIST (old) / private
Mail: 4-6-1 Komaba, Meguro-Ku, Tokyo, 153-8505, Japan
Phone: +81-3-5452-6256
FAX: +81-3-5452-6457

Affiliation

Institute of Industrial Science, University of Tokyo

Curriculum Vitae

Education and Awards:

2008 - pres.:	Project Assistant Professor in Institute of Industrial Science, University of Tokyo
2005 - 2008:	JSPS Research Fellow (PD) (10.0% (469/4689) accepted)
2002 - 2005:	Ph.D in Computer Science, University of Tokyo; thesis title: Collaborative and Corpus-Driven Approaches towards Lexicalized Grammar-based Natural Language Processing
2002 - 2005:	JSPS Research Fellow (DC1) (11.6% (260/2248) accepted)
2003 - 2004:	Visiting researcher in the Department of Informatics at the University of Sussex
2000 - 2002:	MSc in Information Science, University of Tokyo; thesis title: TAG-to-HPSG conversion and its applications.
1996 - 2000:	BSc in Information Science, University of Tokyo.

Full CV

Research Interests

Efficient Algorithms for Natural Language Processing
Linguistic Knowledge Acquisition from Web-scale Corpora
Web-oriented NLP/CL Applications

Selected Refereed Publications

Polynomial to Linear: Efficient Classification with Conjunctive Features. Yoshinaga, N. and M. Kitsuregawa. Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing. pp. 1542--1551. Singapore. August, 2009. C++ Implementation (GPL) of the classifier and C++ Implementation (GPL) of its application (dependency parser) are available.
Boosting Precision and Recall of Hyponymy Relation Acquisition from Hierarchical Layouts in Wikipedia. Sumida, A., N. Yoshinaga, and K. Torisawa. In Proceedings of the 6th nternational Conference on Language Resources and Evaluation. pp. 2462--2469. Marrakech, Morocco. May, 2008. Ruby Implementation (GPL) is avairable from ALAGIN Forum.
Open-Domain Attribute-Value Acquisition from Semi-Structured Texts, Yoshinaga, N. and Kentaro Torisawa. In Proceedings of the sixth ISWC workshop, OntoLex07 - From Text to Knowledge: The Lexicon/Ontology Interface, pp. 55--66. Busan, South-Korea, 2007. A writing-support environment based on this method is presented at the IEEE/WIC/ACM Web Intelligence Workshop on Intelligent Web Interaction.
Finding Specification Pages from the Web. Yoshinaga, N. and Kentaro Torisawa. Transactions of the Japanese Society for Artificial Intelligence. vol. 21, num. 6. pp. 493--501. 2006. (In Japanese). This article includes the detailed explanation of the paper presented at the 15th World Wide Web conference.
Improving the Accuracy of Subcategorizations Acquired from Corpora. Yoshinaga, N. In Proceedings of the 42nd ACL companion volume, pp. 43--48. Barcelona, Spain. July, 2004.
Parsing Comparison across Grammar Formalisms Using Strongly Equivalent Grammars. Yoshinaga, N., Y. Miyao, K. Torisawa, and J. Tsujii. In Journal of Traitement Automatique des Langues, a special issue on Evolutions in Parsing. vol. 44, num. 3. pp. 15--39. 2003. This work is based on TAG-to-HPSG conversion (see the article shown in European Student Journal for Language and Speech). LiLFeS implementation of the grammar converer is available.

Selected Presentations

Parsing comparison between LTAG and HPSG using strongly equivalent grammars. Yoshinaga, N. Talk given in the Sussex Informatics NLCL Seminar at University of Sussex, Brighton, U.K., October, 2003
Automatic conversion from FB-LTAG to HPSG. Yoshinaga, N. Talk given in the XTAG meeting at University of Pennsylvania (IRCS), Philadelphia, PA, U.S.A., September, 2000.