Top page of Masaharu Yoshioka

Japanese version

Affiliation:

Associate Professor, Graduate School of Information Science and Technology, Hokkaido University

Address:

North 14 West 9, Kita-ku, Sapporo-shi, Hokkaido, Japan

Tel:

+81-11-706-7107

FAX:

+81-11-706-7107

• Knowledge Engineering
• Information Retrieval
• Natural Language Processing
• Design Research
• Design Process Modeling

Information Retrieval (IR)

• Adaptive Generalization
  Many IR users may give little thought to the selection of appropriate keywords. As a result, the IR system can not retrieve all relevant information from the query. Adaptive Generalization is a method for estimating generalized level for each keyword based on the word distribution information. This method can be used as a part of query expansion mechanism of the IR system.
• Appropriate Boolean query Reformulation for Information Retrieval (ABRIR)
  It is not easy for IR users to construct a Boolean query that covers all relevant documents. ABRIR supports to clarify the Boolean query by using (pseudo-)relevant documents.
  

Text Summarization

• Multiple News Articles Summarization based on Event Reference Information
  Most of news articles report several events and these events are refereed with following articles, we use this event reference information to calculate importance of a sentence in multiple news articles. We also propose a method to delete redundant description by using similarity of events.

• Knowledge Intensive Engineering
  Framework for new engineering by intensively stored various kind of knowledge related to whole life cycle of artifacts (e.g. design, maintenance, recycle, etc.).

• Functional modeling
  Make framework for representing function of artifacts.

• Natural Language Processing
• Creating Text Corpus for Terminological Research

 Related Site

• Hokkaido University
  • Knowledgebase lab Graduate School of Information Science and Technology, Hokkaido University (in Japanese)
  • Computer Science Division (in Japanese)
  • Graduate School of Information Science and Technology, Hokkaido University
  • Hokkaido University
• Related lab and institutes
  • Tomiyama Lab. Department of Precision Machinery Engineering, The University of TokyoI graduated from this lab.
  • RACE (Research into Artifacts, Center for Engineering), The University of Tokyo
  • NII
  • Research in NII
  • NTCIR (NII-NACSIS Test Collection for IR Systems) Project

Last Modified on October 7 2004