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VLDB
1994
ACM
99views Database» more  VLDB 1994»
13 years 11 months ago
Join Index Hierarchies for Supporting Efficient Navigations in Object-Oriented Databases
A join index hierarchy method is proposed to handle the "goto's on disk" problem in objectoriented query processing. The method constructs a hierarchy of join indic...
Zhaohui Xie, Jiawei Han
WWW
2003
ACM
14 years 8 months ago
On labeling schemes for the semantic web
This paper focuses on the optimization of the navigation through voluminous subsumption hierarchies of topics employed by Portal Catalogs like Netscape Open Directory (ODP). We ad...
Vassilis Christophides, Dimitris Plexousakis, Mich...
CGI
1998
IEEE
13 years 11 months ago
Hierarchical Visibility Culling with Occlusion Trees
In the scope of rendering complex models with high depth complexity, it is of great importance to design outputsensitive algorithms, i.e., algorithms with the time complexity prop...
Jirí Bittner, Vlastimil Havran, Pavel Slav&...
ISPA
2005
Springer
14 years 1 months ago
CMSA: A Method for Construction and Maintenance of Semantic Annotations
An important precondition for the success of the Semantic Web is founded on the principle that the content of web pages will be semantically annotated. In this paper, we propose a ...
Lixin Han, Guihai Chen, Linping Sun, Li Xie
ICIP
2003
IEEE
14 years 9 months ago
A semantic representation for image retrieval
Robust semantic labeling of image regions is a basic problem in representing and retrieving image/video content. We propose an SVM-MRF framework to model features and their spatia...
Lei Wang, B. S. Manjunath