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AICOM
2004
100views more  AICOM 2004»
13 years 7 months ago
Query rewriting with symmetric constraints
Abstract. We address the problem of answering queries using expressive symmetric inter-schema constraints which allow to establish mappings between several heterogeneous informatio...
Christoph Koch
ICDE
2004
IEEE
120views Database» more  ICDE 2004»
14 years 9 months ago
Algebraic Signatures for Scalable Distributed Data Structures
Signatures detect changes to the data objects. Numerous schemes a known, e.g., the popular hash based SHA-1 standard. We propose a nov scheme we call algebraic signatures. We use ...
Witold Litwin, Thomas J. E. Schwarz
KDD
2004
ACM
139views Data Mining» more  KDD 2004»
14 years 8 months ago
Machine learning for online query relaxation
In this paper we provide a fast, data-driven solution to the failing query problem: given a query that returns an empty answer, how can one relax the query's constraints so t...
Ion Muslea
SIGMOD
2004
ACM
199views Database» more  SIGMOD 2004»
14 years 7 months ago
Approximate XML Query Answers
The rapid adoption of XML as the standard for data representation and exchange foreshadows a massive increase in the amounts of XML data collected, maintained, and queried over th...
Neoklis Polyzotis, Minos N. Garofalakis, Yannis E....
MM
2004
ACM
136views Multimedia» more  MM 2004»
14 years 1 months ago
Fingerprinting and forensic analysis of multimedia
One of the prime reasons movie and music studios have ignored the Internet for open-networked multimedia content delivery, has been the lack of a technology that can support a sec...
Daniel Schonberg, Darko Kirovski