OYAMA Keizo

Last updated: 09/11/20 09:37

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Name
OYAMA Keizo
e-mail
oyamanii.ac.jp
URL
http://research.nii.ac.jp/~oyama/official/content_j.html
Affiliation
National Institute of Informatics
Section
Digital Content and Media Sciences Research Division
Job title
Professor, Research Division Director; Director of Information Technology Center
Degree
Dr.Eng.
Other affiliation
Department of InformaticsSchool of Multidisciplinary SciencesThe Graduate University for Advanced Studies (SOKENDAI)
 

Profile

My research interests are:
- Enhancing Web information access through Web retrieval,
Web page classification, Web user analysis, and so on;
- Full text database retrieval technique; etc.
I am also interested in research and development of scholarly
information service systems such as an electronic journal and
a scholarly article navigator.

Research area

 

Papers

 

Building a Terabyte-scale Web Data Collection "NW1000G-04" in the NTCIR-5 WEB Task
Masao Takaku, Keizo Oyama, Akiko Aizawa, Haruko Ishikawa, Kengo Minamide, Shin Kato, Hayato Yamana, and Junya Hayashi
NII Technical Report   (NII-20)    Sep 2006
Yuxin Wang, Keizo Oyama
IPSJ Trans. Database   2(2) 29-43   Jun 2009   [Refereed]
Overview of the NTCIR-5 WEB Navigational Retrieval Subtask 2 (Navi-2)
Keizo Oyama, Masao Takaku, Haruko Ishikawa, Akiko Aizawa and Hayato Yamana
Proc. the Fifth NTCIR Workshop Meeting on Evaluation of Information Access Technologies, December 6-9, 2005, Tokyo, Japan   423-442   Dec 2005
Yuxin WANG, Keizo OYAMA
Progress in Informatics   (6) 27-39   Mar 2009   [Refereed]
Web Page Classification exploiting Surrounding Pages with Noisy Page Filtering
Yuxin Wang, Keizo Oyama
Proceedings of the 2008 International Conference on Data Mining (DMIN2008), Las Vegas, Nevada, USA, July 14-17, 2008   626-632   Jul 2008   [Refereed]
Combining Page Group Structure and Content for Roughly Filtering Researchers' Homepages with High Recall
Yuxin Wang, Keizo Oyama
Proc. Symposium on Database and Web Information Systems (DBWeb2005), Tokyo, November 21-22, 2005   189-196   Nov 2005
Overview of the NTCIR-4 WEB Navigational Retrieval Task 1
Keizo Oyama, Koji Eguchi, Haruko Ishikawa and Akiko Aizawa
Working Notes of the Fourth NTCIR Workshop Meeting, June 2-4, 2004, Tokyo, Japan   Suppl. ov-23-ov-40   Jun 2004
Yuxin Wang, Keizo Oyama
Proc. Joint 9th Asia-Pacific Web Conference (APWeb 2007) and 8th International Conference on Web-Age Information Management (WAIM 2007), HuangShan, China, June 16-18, 2007, LNCS 4505   95-107   Jun 2007   [Refereed]
Overview of WEB Task at NTCIR-4
Koji Eguchi, Keizo Oyama, Akiko Aizawa and Haruko Ishikawa
Working Notes of the Fourth NTCIR Workshop Meeting, June 2-4, 2004Tokyo, Japan   Suppl. ov-1-ov-2   Jun 2004
Web Page Classification Considering Page Group Structure for Building a High-Quality Homepage Collection (short paper)
Yuxin Wang, Keizo Oyama
Proc. Third International Conference on Web Information Systems and Technologies (WEBIST 2007), Barcelona, Spain, March 3-6, 2007   WIA 170-175   Mar 2007   [Refereed]
Overview of the Informational Retrieval Task at NTCIR-4 WEB
Koji Eguchi, Keizo Oyama, Akiko Aizawa and Haruko Ishikawa
Working Notes of the Fourth NTCIR Workshop Meeting, June 2-4, 2004, Tokyo, Japan   Suppl. ov-3-ov-15   Jun 2004
Yuxin Wang, Keizo Oyama
Proc. 9th International Conference on Asian Digital Libraries (ICADL2006), Kyoto, Japan, November 27-30, 2006, LNCS, Vol. 4312/2006   515-518   Nov 2006   [Refereed]
Overview of WEB Task at the Fourth NTCIR Workshop
Koji Eguchi, Keizo Oyama, Akiko Aizawa, and Haruko Ishikawa
Proceedings of the Fourth NTCIR Workshop on Research in Information Access Technologies: Information Retrieval, Question Answering and Summarization, Tokyo, Japan (Jun. 2004)      Jun 2004
Masao Takaku, Keizo Oyama, and Akiko Aizawa
Proc. Asia Information Retrieval Symposium (AIRS) 2006, Singapore, Singapore, October 16-18, 2006, LNCS, Vol. 4182 /2006   625-632   Oct 2006   [Refereed]
Overview of the Web Retrieval Task at the Third NTCIR Workshop
Koji Eguchi, Keizo Oyama, Emi Ishida, Noriko Kando, and Kazuko Kuriyama
Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, Automatic Text Summarization and Question Answering, Tokyo, Japan (Mar. 2003)      Mar 2003
Yuxin Wang, Keizo Oyama
情報処理学会論文誌データベース   47(SIG 8) 11-23   Jun 2006   [Refereed]
Yuxin Wang, Keizo Oyama
Proc. 8th International Conference on Asian Digital Libraries, ICADL 2005, Bangkok, Thailand, December 12-15, 2005, LNCS, Vol. 3815/2005   473-474   Dec 2005   [Refereed]
Development of an information retrieval system suitable for large-scale scholarly databases (translation)
Oyama,K., Kageura, K., Kando, N., Kimura, M., Maruyama, K., Yoshioka, M., Takahashi, K.
Systems and Comupters in Japan   34(6) 44-56   Jan 2003
Enhancing the Electronic Library System through the Integration of Heterogeneous Data Sources
H.Gotoda, K.Oyama, J.Adachi
Proc. International Advanced Digital Library Conference in Nagoya (IADLC 2005), 2005   109-115   Aug 2005   [Invited]
Overview of the Web Retrieval Task at the Third NTCIR Workshop
Koji Eguchi, Keizo Oyama, Emi Ishida, Noriko Kando, and Kazuko Kuriyama
NII Technical Report   (NII-20)    Jan 2003
Overview of Web retrieal task at the third NTCIR Workshop
Eguchi,K., Oyama, K., Ishida, E., Kando, K., Kuriyama, K.
Working Notes of the Third NTCIR Workshop Meeting, Part 1: Overview, Tokyo, Japan, October 8-10, 2002   77-86   Oct 2002
Keizo Oyama, Haruko Ishikawa, Koji Eguchi and Akiko Aizawa
Proc. International Workshop on Challenges in Web Information Retrieval and Integration (WIRI 2005), Tokyo, April 8-9, 2005   157-162   Apr 2005   [Refereed]
An Internet-Based Collaborative Dictionary Development Project: SAIKAM
Vuthichai Ampornaramveth, Akiko Aizawa, Keizo Oyama, Tasanee Methapisit
Proceedings of the First International Symposium on Advanced Informatics (AdInfo2000), Tokyo, Japan, March 9-10, 2000   85-88   Mar 2000
Akiko Aizawa and Keizo Oyama
Proc. International Workshop on Challenges in Web Information Retrieval and Integration (WIRI 2005), Tokyo, April 8-9, 2005   30-39   Apr 2005   [Refereed]
Querying Structured Documents based on Human Visual Memory
Shoichiro Hidaka, Hiroyuki Kato, Keizo Oyama
Proceedings of the First International Symposium on Advanced Informatics (AdInfo2000), Tokyo, Japan, March 9-10, 2000   127-132   Mar 2000
Keizo Oyama, Haruko Ishikawa, Koji Eguchi and Akiko Aizawa
Progress in Informatics   (1) 59-73   Mar 2005   [Refereed]
Construction of a Large-scale Test Collection for IR Systems
Noriko Kando, Kazuko Kuriyama, Toshihiko Nozue, Koji Eguchi, Hiroyuki Kato, Shoichiro Hidaka, Keizo Oyama
Proceedings of the First International Symposium on Advanced Informatics (AdInfo2000), Tokyo, Japan, March 9-10, 2000   111-118   Mar 2000
An Evaluation of the Web Retrieval Task at the Third NTCIR Workshop
Koji Eguchi, Keizo Oyama, Emi Ishida, Noriko Kando, and Kazuko Kuriyama
ACM SIGIR Forum   38(1) 39-45   Jun 2004   [Refereed]
Phrase processing methods for Japanese text retrieval
Kando, N., Kageura, K., Yoshioka, M., Oyama, K.
SIGIR-Forum   32(2) 23-28   Dec 1998
Evaluation Methods for Web Retrieval Tasks Considering Hyperlink Structure
Koji Eguchi, Keizo Oyama, Emi Ishida, Noriko Kando, and Kazuko Kuriyama
IEICE Transactions on Information and Systems   E86-D(9) 1804-1813   Sep 2003   [Refereed]
System Evaluation Methods for Web Retrieval Tasks Considering Hyperlink Structure (poster session)
Koji Eguchi, Keizo Oyama, Emi Ishida, Noriko Kando, and Kazuko Kuriyama
The 12th International World Wide Web Conference (WWW2003), Budapest, Hungary (May 2003)      May 2003   [Refereed]
Evaluation Methods for Web Retrieval Tasks
Koji Eguchi, Keizo Oyama, Emi Ishida, Noriko Kando, and Kazuko Kuriyama
Proceedings of DBWeb2002, Tokyo, Japan (Dec. 2002)   415-422   Dec 2002   [Refereed]
The Web Retrieval Task and its Evaluation in the Third NTCIR Workshop
Koji Eguchi, Keizo Oyama, Emi Ishida, Kazuko Kuriyama, and Noriko Kando
Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2002), Tampere, Finland   375-376   Aug 2002   [Refereed]
Evaluation Design of Web Retrieval Task in the Third NTCIR Workshop
Koji Eguchi, Keizo Oyama, Emi Ishida, Kazuko Kuriyama and Noriko Kando
The 11th International World Wide Web Conference (WWW2002), Honolulu, Hawaii, USA (May 2002)   (poster) 22-   May 2002   [Refereed]
Querying Structured Documents based on Human Visual Memory
S. Hidaka, H. Kato and K. Oyama
Proceedings of the ISCA 2nd International Conference On Information Reuse And Integration (IRI-2000), Hawaii, USA,(Nov., 2000)   91-94   Nov 2000   [Refereed]
Querying Structured Documents based on Human Visual Memory
Soichiro Hidaka, Hiroyuki Kato, Keizo Oyama
Proceedings of the 1999 International Symposium on Database Applications in NonTraditional Environments(DANTE'99), Kyoto, November 1999   226-229   Nov 1999   [Refereed]
A Query Optimization for XML Document Views Constructed by Aggregations
Hiroyuki Kato, Masatoshi Yoshikawa, Keizo Oyama and Shunsuke Uemura
Proceedings of the 1999 International Symposium on Database Applications in NonTraditional Environments(DANTE'99), Kyoto, November 1999   29-36   Nov 1999   [Refereed]
Construction of a Distributed Online Journal Editing System
Keizo Oyama, Noriko Kando, Shin'ichi Satoh
Proceedings of International Symposium on Digital Libraries 1999 (ISDL '99), Sep. 28-29, 1999, Tsukuba, Ibaraki, Japan (1999)   74-81   Sep 1999   [Refereed]
Phrase processing methods for Japanese text retrieval
Noriko Kando, Kyo Kageura, Masaharu Yoshioka, Keizo Oyama
Proceedings of ACM-SIGIR '98 Workshop on "Information Retrieval : Theroy into Practice”      Jan 1998   [Refereed]
Layered Data View for Searching, Browsing, and Presenting Scholarly Documents
Keizo Oyama
Proceedings of International Symposium on Research, Development and Practice in Digital libraries 1997 (ISDL '97)   49-54   Jan 1997   [Refereed]
NTCIR : NACSIS Test Collection Project
Noriko Kando, Teruo Koyama, Keizo Oyama, Kyo Kageura, Masaharu Yoshioka, et al.
Proceedings of the 20th Annual Colloquium of BCS-IRSG      Jan 1997   [Refereed]
Approximate Matching for OCR-processed Bibliographic Data
Atsuhiro Takasu, Norio Katayama, Masaki Yamaoka, Osamu Iwaki, Keizo Oyama, Jun Adachi
Proceedings of 13th International Conference on Pattern Recognition (ICPR 96)   III 175-179   Jan 1996   [Refereed]
Development of a Full-Text Information Retrieval System
Keizo Oyama, Akira Miyazawa, Atsuhiro Takasu, Kouji Shibano
Proceedings of Third Annual Symposium on Document Analysis and Information Retrieval. Las Vegas, NV, 1994-4   361-364   Apr 1994   [Refereed]
Trends of Library Automation at Japanese Universities in relation to National Center for Science Information System
Keizo Oyama
Proceedings of International Conference on Japanese Information   39470-39683   Jan 1987   [Refereed]

Conference

 

A Method for Creating a High Quality Collection of Researchers' Homepages from the Web
Yuxin Wang and Keizo Oyama
Proc. Data Engineering Workshop 2005 (DEWS2005), 5C-i10   Feb 2005   
NTCIR: NACSIS Test Collection Project [Poster]
Kando, N., Koyama, T., Oyama, K., Kageura, K., Yoshioka, M., Nozue, T., Matsumura, A., Kuriyama, K.
The 20th Annual Colloquium of the British Computer Society Information Retrieval Specialist Group. Autrans, France, March 25-27, 1998   Mar 1998   
Information Linkage and Its Application: Utilization of Large-Scale Academic Databases for Entity Identification (Invited Poster)
Akiko Aizawa, Masao Takaku, Keizo Oyama, and Jun Adachi
DBWeb   Nov 2006