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» Query Answering in Inconsistent Databases
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SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
16 years 2 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
FQAS
2004
Springer
103views Database» more  FQAS 2004»
15 years 7 months ago
A Unifying Framework for Flexible Information Access in Taxonomy-Based Sources
A taxonomy-based source consists of a taxonomy and a database storing objects that are indexed in terms of the taxonomy. For this kind of sources, we describe a flexible interacti...
Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos
PAKDD
2004
ACM
94views Data Mining» more  PAKDD 2004»
15 years 7 months ago
Towards Optimizing Conjunctive Inductive Queries
Inductive queries are queries to an inductive database that generate a set of patterns in a data mining context. Inductive querying poses new challenges to database and data mining...
Johannes Fischer, Luc De Raedt
ICDE
2002
IEEE
128views Database» more  ICDE 2002»
16 years 3 months ago
Efficiently Ordering Query Plans for Data Integration
The goal of a data integration system is to provide a uniform interface to a multitude of data sources. Given a user query formulated in this interface, the system translates it i...
AnHai Doan, Alon Y. Halevy
143
Voted
SIGMOD
2004
ACM
163views Database» more  SIGMOD 2004»
16 years 2 months ago
Constraint-Based XML Query Rewriting For Data Integration
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
Cong Yu, Lucian Popa