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» Querying Communities in Relational Databases
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ICDE
2009
IEEE
160views Database» more  ICDE 2009»
14 years 9 months ago
Perm: Processing Provenance and Data on the Same Data Model through Query Rewriting
Data provenance is information that describes how a given data item was produced. The provenance includes source and intermediate data as well as the transformations involved in pr...
Boris Glavic, Gustavo Alonso
EUSFLAT
2001
107views Fuzzy Logic» more  EUSFLAT 2001»
15 years 17 days ago
Enriching vague queries by fuzzy orderings
The Vague Query System (VQS) due to Kiing and Palkoska is an add-on to relational databases which is able to suggest alternative query results in case that an exact query fails. T...
Ulrich Bodenhofer, Josef Küng
ICDE
2005
IEEE
103views Database» more  ICDE 2005»
16 years 16 days ago
Vectorizing and Querying Large XML Repositories
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
Peter Buneman, Byron Choi, Wenfei Fan, Robert Hutc...
SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
15 years 11 months ago
Selectivity Estimation using Probabilistic Models
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
Lise Getoor, Benjamin Taskar, Daphne Koller
ICDE
2007
IEEE
145views Database» more  ICDE 2007»
15 years 5 months ago
A Data Model for Moving Objects Supporting Aggregation
Moving objects databases (MOD) have been receiving increasing attention from the database community in recent years, mainly due to the wide variety of applications that technology...
Bart Kuijpers, Alejandro A. Vaisman