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EDBT
2002
ACM
136views Database» more  EDBT 2002»
14 years 7 months ago
Rewriting Unions of General Conjunctive Queries Using Views
The problem of finding contained rewritings of queries using views is of great importance in mediated data integration systems. In this paper, we first present a general approach f...
Junhu Wang, Michael J. Maher, Rodney W. Topor
VLDB
2004
ACM
106views Database» more  VLDB 2004»
14 years 24 days ago
An Integration Framework for Sensor Networks and Data Stream Management Systems
This demonstration shows an integrated query processing environment where users can seamlessly query both a data stream management system and a sensor network with one query expre...
Daniel J. Abadi, Wolfgang Lindner, Samuel Madden, ...
SSDBM
2010
IEEE
133views Database» more  SSDBM 2010»
13 years 5 months ago
PrefIndex: An Efficient Supergraph Containment Search Technique
Graphs are prevailingly used in many applications to model complex data structures. In this paper, we study the problem of supergraph containment search. To avoid the NP-complete s...
Gaoping Zhu, Xuemin Lin, Wenjie Zhang, Wei Wang, H...
ESANN
2001
13 years 8 months ago
An integrated neural IR system
Over the years the amount and range of electronic text stored on the WWW has expanded rapidly, overwhelming both users and tools designed to index and search the information. It is...
Victoria J. Hodge, Jim Austin
GLOBE
2008
Springer
13 years 8 months ago
Query Propagation in a P2P Data Integration System in the Presence of Schema Constraints
This paper addresses the problem of data integration in a P2P environment, where each peer stores schema of its local data, mappings between the schemas, and some schema constraint...
Tadeusz Pankowski