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ADC
2004
Springer
132views Database» more  ADC 2004»
16 years 8 days ago
Questioning Query Expansion: An Examination of Behaviour and Parameters
In information retrieval, queries can fail to find documents due to mismatch in terminology. Query expansion is a well-known technique addressing this problem, where additional q...
Bodo Billerbeck, Justin Zobel
SSDBM
2010
IEEE
127views Database» more  SSDBM 2010»
15 years 12 months ago
Optimizing All-Nearest-Neighbor Queries with Trigonometric Pruning
Many applications require to determine the k-nearest neighbors for multiple query points simultaneously. This task is known as all-(k)-nearest-neighbor (AkNN) query. In this paper,...
Tobias Emrich, Franz Graf, Hans-Peter Kriegel, Mat...
KRDB
2003
121views Database» more  KRDB 2003»
15 years 8 months ago
Knowledge Representation using Schema Tuple Queries
This paper introduces schema tuple queries and argues for their suitability in representing knowledge over standard relational databases. Schema tuple queries are queries that ret...
Michael Minock
FUIN
2008
88views more  FUIN 2008»
15 years 7 months ago
Preferential Regular Path Queries
In this paper, we introduce preferential regular path queries. These are regular path queries whose symbols are annotated with preference weights for "scaling" up or down...
Gösta Grahne, Alex Thomo, William W. Wadge
ICDE
2008
IEEE
132views Database» more  ICDE 2008»
16 years 8 months ago
Auditing SQL Queries
We study the problem of auditing a batch of SQL queries: Given a forbidden view of a database that should have been kept confidential, a batch of queries that were posed over this ...
Rajeev Motwani, Shubha U. Nabar, Dilys Thomas