Nobuo OHBO


Minimal Spanning Tree Construction with MetricMatrix
Masahiro ISHIKAWA Kazutaka FURUSE Hanxiong CHEN Nobuo OHBO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/02/01
Vol. E85-D  No. 2  pp. 362-372
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
database clusteringhierarchical clusteringminimal spanning treemetric indexdata mining
 Summary | Full Text:PDF

Optimization of Join-Type Queries in Nested Relational Databases
Yaxin LI Hiroyuki KITAGAWA Nobuo OHBO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/06/25
Vol. E77-D  No. 6  pp. 648-659
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
databases
 Summary | Full Text:PDF

Optimization of Queries with ADT Functions
Xiaodong ZHANG Nobuo OHBO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1994/06/25
Vol. E77-D  No. 6  pp. 660-668
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
query execution planoptimizationsemijoinADT function
 Summary | Full Text:PDF