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ICPR
2010
IEEE
13 years 6 months ago
Learning the Kernel Combination for Object Categorization
Although Support Vector Machines(SVM) succeed in classifying several image databases using image descriptors proposed in the literature, no single descriptor can be optimal for ge...
Deyuan Zhang, Xiaolong Wang, Bingquan Liu
CORR
2011
Springer
207views Education» more  CORR 2011»
13 years 3 months ago
DB Category: Denotational Semantics for View-based Database Mappings
Abstract. We present a categorical denotational semantics for a database mapping, based on views, in the most general framework of a database integration/exchange. Developed databa...
Zoran Majkic
ICDE
1998
IEEE
153views Database» more  ICDE 1998»
14 years 9 months ago
Flattening an Object Algebra to Provide Performance
Algebraic transformation and optimization techniques have been the method of choice in relational query execution, but applying them in OODBMS is difficult due to the complexity o...
Peter A. Boncz, Annita N. Wilschut, Martin L. Kers...
VLDB
1993
ACM
152views Database» more  VLDB 1993»
14 years 6 days ago
Declustering Objects for Visualization
In this paper we propose a new declustering method which is particularly suitable for image and cartographic databases used for visualization. Our declustering method is based on ...
Ling Tony Chen, Doron Rotem
MFDBS
1991
125views Database» more  MFDBS 1991»
13 years 11 months ago
A Relational Algebra for Complex Objects Based on Partial Information
We study an approach to relational databases which treats relations not as subsets of a Cartesian product but as subsets of some domain { a partially ordered space of descriptions...
Leonid Libkin