Michiyoshi HAYASE


Steiner Trees on Sets of Three Points in -Geometry ( =3m)
Michiyoshi HAYASE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/08/01
Vol. E85-A  No. 8  pp. 1946-1955
Type of Manuscript:  PAPER
Category: Graphs and Networks
Keyword: 
Steiner minimum treeSteiner minimal tree-geometrycomputer-aided designnetwork
 Summary | Full Text:PDF(472.7KB)

Complexity and a Method of Extracting a Database Schema over Semistructured Documents
Nobutaka SUZUKI Yoichirou SATO Michiyoshi HAYASE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2002/06/01
Vol. E85-D  No. 6  pp. 940-949
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
semistructured dataschema extraction problemapproximabilityNP-hardness
 Summary | Full Text:PDF(628.3KB)

Extracting Typical Classes and a Database Schema from Semistructured Data
Nobutaka SUZUKI Yoichirou SATO Michiyoshi HAYASE 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/01/01
Vol. E84-D  No. 1  pp. 100-112
Type of Manuscript:  PAPER
Category: Databases
Keyword: 
semistructured dataclass extractionapproximation algorithm
 Summary | Full Text:PDF(613.6KB)