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ICDE
2004
IEEE
94views Database» more  ICDE 2004»
16 years 8 months ago
A Probabilistic Approach to Metasearching with Adaptive Probing
An ever increasing amount of valuable information is stored in Web databases, "hidden" behind search interfaces. To save the user's effort in manually exploring eac...
Zhenyu Liu, Chang Luo, Junghoo Cho, Wesley W. Chu
198
Voted
PODS
2010
ACM
181views Database» more  PODS 2010»
15 years 12 months ago
Schema design for XML repositories: complexity and tractability
Abiteboul et al. initiated the systematic study of distributed XML documents consisting of several logical parts, possibly located on different machines. The physical distributio...
Wim Martens, Matthias Niewerth, Thomas Schwentick
DBISP2P
2003
Springer
105views Database» more  DBISP2P 2003»
16 years 2 days ago
Distributed Queries and Query Optimization in Schema-Based P2P-Systems
Databases have employed a schema-based approach to store and retrieve structured data for decades. For peer-to-peer (P2P) networks, similar approaches are just beginning to emerge,...
Ingo Brunkhorst, Hadhami Dhraief, Alfons Kemper, W...
ICDE
1999
IEEE
113views Database» more  ICDE 1999»
16 years 8 months ago
Capability-Sensitive Query Processing on Internet Sources
On the Internet, the limited query-processing capabilities of sources make answering even the simplest queries challenging. In this paper, we present a scheme called GenCompact fo...
Hector Garcia-Molina, Wilburt Labio, Ramana Yernen...
ADBIS
2009
Springer
148views Database» more  ADBIS 2009»
16 years 1 months ago
On Containment of Conjunctive Queries with Negation
Abstract. We consider the problem of query containment for conjunctive queries with the safe negation property. Some necessary conditions for this problem are given. A part of the ...
Victor Felea