A graph-theoretical approach to region detection. - Nobuo Ohbo; Kazuya Shimizu; Tosiyasu L. Kunii (COMPSAC, 1979)

Database support for solid modeling. - Xu Yu 004; Nobuo Ohbo; Takashi Masuda; Yuzuru Fujiwara (Vis. Comput., 1986)

Design data modeling with versioned conceptual configuration. - Hiroyuki Kitagawa; Nobuo Ohbo (COMPSAC, 1989)

Functional Approach to Chemical Structure Databases. - Yu Qin Luan; Nobuo Ohbo; Hiroyuki Kitagawa; Yuzuru Fujiwara (DASFAA, 1989)

Abstract Data Types in Graphics Databases. - Shi-Jie Jiang; Hiroyuki Kitagawa; Nobuo Ohbo; Isao Suzuki; Yuzuru Fujiwara (VDB, 1989)

Integration of Functional Data Model into Programming Environment: Application to Solid Database. - Xu Yu 004; Nobuo Ohbo; Hiroyuki Kitagawa; Yuzuru Fujiwara (VDB, 1989)

Optimization of Queries Including ADT Functions. - Kenichi Yajima; Hiroyuki Kitagawa; Kazunori Yamaguchi; Nobuo Ohbo; Yuzuru Fujiwara (DASFAA, 1991)

Decomposition - An Approach for Optimizing Queries Including ADT Functions. - Hanxiong Chen; Xu Yu 004; Kazunori Yamaguchi; Hiroyuki Kitagawa; Nobuo Ohbo; Yuzuru Fujiwara (Inf. Process. Lett., 1992)

A Guideline for Implementing Access Method Modules in Extensible DBMS MODUS. - Kazutaka Furuse; Jeffrey Xu Yu; Kazunori Yamaguchi; Hiroyuki Kitagawa; Nobuo Ohbo (Australian Database Conference, 1993)

A Method of Using Semijoins to Optimizing Queries with ADT Functions. - Xiaodong Zhang; Nobuo Ohbo; Hanxiong Chen; Yuzuru Fujiwara (CIKM, 1993)

LRU-S: A New Buffer Allocation Approach for OODBMS. - Hanxiong Chen; Jeffrey Xu Yu; Kazunori Yamaguchi; Hiroyuki Kitagawa; Nobuo Ohbo; Yuzuru Fujiwara (DASFAA, 1993)

Abstract Indexing Mechanism of the Extensible DBMS Modus. - Kazutaka Furuse; Kazunori Yamaguchi; Hiroyuki Kitagawa; Nobuo Ohbo (DASFAA, 1993)

Estimation of False Drops in Set-valued Object Retrieval with Signature Files. - Hiroyuki Kitagawa; Yoshiaki Fukushima; Yoshiharu Ishikawa; Nobuo Ohbo (FODO, 1993)

Evaluation of Signature Files as Set Access Facilities in OODBs. - Yoshiharu Ishikawa; Hiroyuki Kitagawa; Nobuo Ohbo (SIGMOD Conference, 1993)

Using Stem Rules to Refine Document Retrieval Queries. - Ye Liu; Hanxiong Chen; Jeffrey Xu Yu; Nobuo Ohbo (FQAS, 1998)

A Data Mining Approach for Query Refinement. - Ye Liu; Hanxiong Chen; Jeffrey Xu Yu; Nobuo Ohbo (PAKDD, 1998)

Processing Queries with Expensive Predicates by Filtering. - Hanxiong Chen; Toshiro Ohno; Nobuo Ohbo (COMPSAC, 1999)

MST Construction with Metric Matrix for Clustering. - Masahiro Ishikawa; Yi Liu; Kazutaka Furuse; Hanxiong Chen; Nobuo Ohbo (VDB, 2000)

MB+Tree: A Dynamically Updatable Metric Index for Similarity Searches. - Masahiro Ishikawa; Hanxiong Chen; Kazutaka Furuse; Jeffrey Xu Yu; Nobuo Ohbo (Web-Age Information Management, 2000)

Support IR Query Refinement by Partial Keyword Set. - Hanxiong Chen; Jeffrey Xu Yu; Kazutaka Furuse; Nobuo Ohbo (WISE (1), 2001)

The Complex Polyhedra Technique: An Index Structure for High-Dimensional Space. - Jiyuan An; Hanxiong Chen; Kazutaka Furuse; Masahiro Ishikawa; Nobuo Ohbo (Australasian Database Conference, 2002)

C2VA: Trim High Dimensional Indexes. - Hanxiong Chen; Jiyuan An; Kazutaka Furuse; Nobuo Ohbo (WAIM, 2002)

Grid-Based Indexing for Large Time Series Databases. - Jiyuan An; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo; Eamonn J. Keogh (IDEAL, 2003)

Web Query Refinement without Information Loss. - Chaoyuan Cui; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo (APWeb, 2004)

Improving Collaborative Filtering by W-clustering. - Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo; Seiichi Nishihara (Databases and Applications, 2004)

Adaptive Query Refinement Based on Global and Local Analysis. - Chaoyuan Cui; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo (FSKD (1), 2005)

CVA file: an index structure for high-dimensional datasets. - Jiyuan An; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo (Knowl. Inf. Syst., 2005)

Supporting Web Search with Near Keywords. - Hanxiong Chen; Kousuke Yamamoto; Kazutaka Furuse; Nobuo Ohbo (FSKD (2), 2007)

Efficient Methods in Finding Aggregate Nearest Neighbor by Projection-Based Filtering. - Yanmin Luo 001; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo (ICCSA (3), 2007)

Finding aggregate nearest neighbor efficiently without indexing. - Yanmin Luo 001; Kazutaka Furuse; Hanxiong Chen; Nobuo Ohbo (Infoscale, 2007)

Efficient Bounds in Finding Aggregate Nearest Neighbors. - Sansarkhuu Namnandorj; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo (DEXA, 2008)

Indexing the Function: An Efficient Algorithm for Multi-dimensional Search with Expensive Distance Functions. - Hanxiong Chen; Jianquan Liu; Kazutaka Furuse; Jeffrey Xu Yu; Nobuo Ohbo (ADMA, 2009)

Extracting Related Words from Anchor Text Clusters by Focusing on the Page Designer's Intention. - Jianquan Liu; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo (DEXA, 2009)

Improving User's Web Search Experience by Interactive Re-ranking and Zooming Interfaces. - Jianquan Liu; Hanxiong Chen; Kazutaka Furuse; Nobuo Ohbo (J. Digit. Inf. Manag., 2009)

Indexing expensive functions for efficient multi-dimensional similarity search. - Hanxiong Chen; Jianquan Liu; Kazutaka Furuse; Jeffrey Xu Yu; Nobuo Ohbo (Knowl. Inf. Syst., 2011)