Yoshifumi MASUNAGA


New Generation Database Technologies for Collaborative Work Support and Spatio-Temporal Data Management
Yoshifumi MASUNAGA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1999/01/25
Vol. E82-D  No. 1  pp. 45-53
Type of Manuscript:  REVIEW PAPER
Category: 
Keyword: 
new generation databasecollaborative work supportCSCWvirtual realityspatio-temporal databaseGISspatio-temporal indextemporal logicviewmultimedia databaseVRMLWWWinternetobject-oriented database
 Summary | Full Text:PDF(605.1KB)

Interval-Based Modeling for Temporal Representation and Operations
Toshiyuki AMAGASA Masayoshi ARITSUGI Yoshinari KANAMORI Yoshifumi MASUNAGA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/01/25
Vol. E81-D  No. 1  pp. 47-55
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
time-interval data modelcomposite time intervalsnull time intervalstemporal operations
 Summary | Full Text:PDF(714.4KB)

An Object-Oriented Approach to Temporal Multimedia Data Modeling
Yoshifumi MASUNAGA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1995/11/25
Vol. E78-D  No. 11  pp. 1477-1487
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Database Technologies)
Category: Model
Keyword: 
multimedia databasestemporal databasesobject-oriented databasestemporal objectssundvideotemporal attributestemporal relationshipsdata modelingODMG-93OMEGA
 Summary | Full Text:PDF(927.4KB)