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» A Study of Practical Deduplication
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SIGMOD
2003
ACM
88views Database» more  SIGMOD 2003»
16 years 6 months ago
Mapping Data in Peer-to-Peer Systems: Semantics and Algorithmic Issues
We consider the problem of mapping data in peer-topeer data-sharing systems. Such systems often rely on the use of mapping tables listing pairs of corresponding values to search f...
Anastasios Kementsietsidis, Marcelo Arenas, Ren&ea...
PODS
2001
ACM
167views Database» more  PODS 2001»
16 years 6 months ago
Querying Websites Using Compact Skeletons
Several commercial applications, such as online comparison shopping and process automation, require integrating information that is scattered across multiple websites or XML docum...
Anand Rajaraman, Jeffrey D. Ullman
PODS
2003
ACM
142views Database» more  PODS 2003»
16 years 6 months ago
Query containment and rewriting using views for regular path queries under constraints
In this paper we consider general path constraints for semistructured databases. Our general constraints do not suffer from the limitations of the path constraints previously stud...
Gösta Grahne, Alex Thomo
PODS
2004
ACM
98views Database» more  PODS 2004»
16 years 6 months ago
Processing First-Order Queries under Limited Access Patterns
We study the problem of answering queries over sources with limited access patterns. Given a first-order query Q, the problem is to decide whether there is an equivalent query whi...
Alan Nash, Bertram Ludäscher
PODS
2005
ACM
129views Database» more  PODS 2005»
16 years 6 months ago
Regular rewriting of active XML and unambiguity
We consider here the exchange of Active XML (AXML) data, i.e., XML documents where some of the data is given explicitly while other parts are given only intensionally as calls to ...
Serge Abiteboul, Tova Milo, Omar Benjelloun