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VLDB
1999
ACM
89views Database» more  VLDB 1999»
14 years 1 months ago
Physical Data Independence, Constraints, and Optimization with Universal Plans
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
Alin Deutsch, Lucian Popa, Val Tannen
VLDB
1999
ACM
87views Database» more  VLDB 1999»
14 years 1 months ago
Query Optimization for XML
XML is an emerging standard for data representation and exchange on the World-Wide Web. Due to the nature of information on the Web and the inherent flexibility of XML, we expect...
Jason McHugh, Jennifer Widom
SIGMOD
1998
ACM
143views Database» more  SIGMOD 1998»
14 years 1 months ago
Optimal Multi-Step k-Nearest Neighbor Search
For an increasing number of modern database applications, efficient support of similarity search becomes an important task. Along with the complexity of the objects such as images...
Thomas Seidl, Hans-Peter Kriegel
CHI
1997
ACM
14 years 1 months ago
Artificial Intelligence Techniques in the Interface to a Digital Video Library
For the huge amounts of audio and video material that could usefully be included in digital libraries, the cost of producing human-generated annotations and meta-data is prohibiti...
Alexander G. Hauptmann, Michael J. Witbrock, Micha...
SIGMOD
1997
ACM
146views Database» more  SIGMOD 1997»
14 years 1 months ago
Concurrency and Recovery in Generalized Search Trees
This paper presents general algorithms for concurrency control in tree-based access methods as well as a recovery protocol and a mechanism for ensuring repeatable read. The algori...
Marcel Kornacker, C. Mohan, Joseph M. Hellerstein