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» Answering imprecise database queries: a novel approach
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ACL
2011
14 years 3 months ago
Fine-Grained Class Label Markup of Search Queries
We develop a novel approach to the semantic analysis of short text segments and demonstrate its utility on a large corpus of Web search queries. Extracting meaning from short text...
Joseph Reisinger, Marius Pasca
PODS
2008
ACM
165views Database» more  PODS 2008»
16 years 8 hour ago
Data exchange and schema mappings in open and closed worlds
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
Leonid Libkin, Cristina Sirangelo
SIGMOD
1998
ACM
96views Database» more  SIGMOD 1998»
15 years 4 months ago
Wavelet-Based Histograms for Selectivity Estimation
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
Yossi Matias, Jeffrey Scott Vitter, Min Wang
SIGMOD
2003
ACM
209views Database» more  SIGMOD 2003»
16 years 21 hour ago
Distributed Top-K Monitoring
The querying and analysis of data streams has been a topic of much recent interest, motivated by applications from the fields of networking, web usage analysis, sensor instrumenta...
Brian Babcock, Chris Olston
IADT
1998
148views more  IADT 1998»
15 years 1 months ago
A Tool for Content-Based Image Retrieval in Object-Oriented Databases
Conventional image processing algorithms used to compare images are very timeconsuming, making them inappropriate for use in searching for an image in a huge collection of images ...
Caetano Traina Jr., Agma J. M. Traina, Rildo R. do...