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PODS
2010
ACM
223views Database» more  PODS 2010»
15 years 5 months ago
Characterizing schema mappings via data examples
Schema mappings are high-level specifications that describe the relationship between two database schemas; they are considered to be the essential building blocks in data exchange...
Bogdan Alexe, Phokion G. Kolaitis, Wang Chiew Tan
ECOI
2007
80views more  ECOI 2007»
15 years 3 months ago
EcoLens: Integration and interactive visualization of ecological datasets
Complex multi-dimensional datasets are now pervasive in science and elsewhere in society. Better interactive tools are needed for visual data exploration so that patterns in such ...
Cynthia Sims Parr, Bongshin Lee, Benjamin B. Beder...
VLDB
2006
ACM
147views Database» more  VLDB 2006»
16 years 4 months ago
Answering queries using materialized views with minimum size
In this paper we study the following problem. Given a database and a set of queries, we want to find a set of views that can compute the answers to the queries, such that the amoun...
Rada Chirkova, Chen Li, Jia Li
VLDB
2004
ACM
106views Database» more  VLDB 2004»
15 years 9 months ago
Structures, Semantics and Statistics
At a fundamental level, the key challenge in data integration is to reconcile the semantics of disparate data sets, each expressed with a different database structure. I argue th...
Alon Y. Halevy
ICDT
2007
ACM
107views Database» more  ICDT 2007»
15 years 10 months ago
Privacy in GLAV Information Integration
Abstract. We define and study formal privacy guarantees for information integration systems, where sources are related to a public schema by mappings given by source-to-target dep...
Alan Nash, Alin Deutsch