Yasushi Ogawa

According to our database, Yasushi Ogawa authored at least 26 papers between 1983 and 2005.

Collaborative distances:

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

2005

TRMeister: A DBMS with High-Performance Full-Text Search Functions.

Tetsuya Ikeda, Hiroko Mano, Hideo Itoh, Hiroshi Takegawa, Takuya Hiraoka, Shiroh Horibe, Yasushi Ogawa

Proceedings of the 21st International Conference on Data Engineering, 2005

Zooming Cross-Media: A Zooming Description Language Coding LOD Control and Media Transition.

Tadashi Araki, Hisashi Miyamori, Mitsuru Minakuchi, Ai Kato, Zoran Stejic, Yasushi Ogawa, Katsumi Tanaka

Proceedings of the Database and Expert Systems Applications, 16th International Conference, 2005

2003

Ricoh at CLEF 2003.

Yuichi Kojima, Hideo Itoh, Hiroko Mano, Yasushi Ogawa

Proceedings of the Comparative Evaluation of Multilingual Information Access Systems, 2003

2002

An efficient document retrieval method using n-gram indexing.

Yasushi Ogawa, Toru Matsuda

Syst. Comput. Jpn., 2002

University of Tokyo/RICOH at NTCIR-3 Web Retrieval Task.

Masashi Toyoda, Masaru Kitsuregawa, Hiroko Mano, Hideo Itoh, Yasushi Ogawa

Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, 2002

Term Distillation for Cross-DB Retrieval.

Hideo Itoh, Hiroko Mano, Yasushi Ogawa

Proceedings of the Third NTCIR Workshop on Research in Information Retrieval, 2002

2001

RICOH at TREC-10: Web Track Ad-hoc Task.

Hideo Itoh, Hiroko Mano, Yasushi Ogawa

Proceedings of The Tenth Text REtrieval Conference, 2001

Selecting Expansion Terms in Automatic Query Expansion.

Hiroko Mano, Yasushi Ogawa

Proceedings of the SIGIR 2001: Proceedings of the 24th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2001

RICOH at NTCIR-2.

Yasushi Ogawa, Hiroko Mano

Proceedings of the Third Second Workshop Meeting on Evaluation of Chinese & Japanese Text Retrieval and Text Summarization, 2001

2000

Pseudo-frequency method: an efficient document ranking retrieval method for n-gram indexing.

Yasushi Ogawa

Proceedings of the SIGIR 2000: Proceedings of the 23rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2000

The use of phrases from query texts in information retrieval.

Masumi Narita, Yasushi Ogawa

Proceedings of the SIGIR 2000: Proceedings of the 23rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2000

1999

BMIR-J2: A Test Collection for Evaluation of Japanese Information Retrieval Systems.

Tetsuya Sakai, Tsuyoshi Kitani, Yasushi Ogawa, Tetsuya Ishikawa, Haruo Kimoto, Ikuo Keshi, Jun Toyoura, Toshikazu Fukushima, Kunio Matsui, Yoshihiro Ueda, Takenobu Tokunaga, Hiroshi Tsuruoka, Hidekazu Nakawatase, Teru Agata, Noriko Kando

SIGIR Forum, 1999

Overlapping statistical segmentation for effective indexing of Japanese text.

Yasushi Ogawa, Toru Matsuda

Inf. Process. Manag., 1999

Structuring and expanding queries in the probabilistic model.

Yasushi Ogawa, Hiroko Mano, Masumi Narita, Sakiko Honma

Proceedings of The Eighth Text REtrieval Conference, 1999

NTCIR Advisor Report.

Yasushi Ogawa

Proceedings of the First NTCIR Workshop on Research in Japanese Text Retrieval and Term Recognition, 1999

1998

Optimizing Query Evaluation in n-gram Indexing.

Yasushi Ogawa, Toru Matsuda

Proceedings of the SIGIR '98: Proceedings of the 21st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 1998

Lessons from BMIR-J2: A Test Collection for Japanese IR Systems.

Tsuyoshi Kitani, Yasushi Ogawa, Tetsuya Ishikawa, Haruo Kimoto, Ikuo Keshi, Jun Toyoura, Toshikazu Fukushima, Kunio Matsui, Yoshihiro Ueda, Tetsuya Sakai, Takenobu Tokunaga, Hiroshi Tsuruoka, Hidekazu Nakawatase, Teru Agata

Proceedings of the SIGIR '98: Proceedings of the 21st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 1998

1996

Effective & Efficient Document Ranking without using a Large Lexicon.

Yasushi Ogawa

Proceedings of the VLDB'96, 1996

1995

A New Character-based Indexing Organization using Frequency Data for Japanese Documents.

Yasushi Ogawa, Masajiro Iwasaki

Proceedings of the SIGIR'95, 1995

1993

Simple Word Strings as Compound Keywords: An Indexing and Ranking Method for Japanese Texts.

Yasushi Ogawa, Ayako Bessho, Masako Hirose

Proceedings of the 16th Annual International ACM-SIGIR Conference on Research and Development in Information Retrieval. Pittsburgh, PA, USA, June 27, 1993

A New Indexing and Text Ranking Method for Japanese Text Databases Using Simple-Word Compounds as Keywords.

Yasushi Ogawa, Ayako Bessho, Masajiro Iwasaki, Mina Nishimura, Masako Hirose

Proceedings of the 3rd International Conference on Database Systems for Advanced Applications (DASFAA), 1993

1991

Timing- and Constraint-Oriented Placement for Interconnected LSIs in Mainframe Design.

Yasushi Ogawa, Tsutomu Itoh, Yoshio Miki, Tatsuki Ishii, Yasuo Sato, Reiji Toyoshima

Proceedings of the 28th Design Automation Conference, 1991

1990

Bucket Spreading Parallel Hash: A New, Robust, Parallel Hash Join Method for Data Skew in the Super Database Computer (SDC).

Masaru Kitsuregawa, Yasushi Ogawa

Proceedings of the 16th International Conference on Very Large Data Bases, 1990

1988

Automatic Layout Procedures for Serial Routing Devices.

Yasushi Ogawa, Hidekazu Terai, Tokinori Kozawa

Proceedings of the 25th ACM/IEEE Conference on Design Automation, 1988

1986

Efficient placement algorithms optimizing delay for high-speed ECL masterslice LSIs.

Yasushi Ogawa, Tatsuki Ishii, Yoichi Shiraishi, Hidekazu Terai, Tokinori Kozawa, Kyoji Yuyama, Kyoji Chiba

Proceedings of the 23rd ACM/IEEE Design Automation Conference. Las Vegas, 1986

1983

Automatic placement algorithms for high packing density V L S I.

Tokinori Kozawa, Hidekazu Terai, Tatsuki Ishii, Michiyoshi Hayase, Chihei Miura, Yasushi Ogawa, Kuniaki Kishida, Norio Yamada, Yasuhiro Ohno

Proceedings of the 20th Design Automation Conference, 1983