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SIGMOD
2001
ACM
160views Database» more  SIGMOD 2001»
16 years 7 months ago
Adaptive Precision Setting for Cached Approximate Values
Caching approximate values instead of exact values presents an opportunity for performance gains in exchange for decreased precision. To maximize the performance improvement, cach...
Chris Olston, Boon Thau Loo, Jennifer Widom
PODS
2003
ACM
156views Database» more  PODS 2003»
16 years 7 months ago
Limiting privacy breaches in privacy preserving data mining
There has been increasing interest in the problem of building accurate data mining models over aggregate data, while protecting privacy at the level of individual records. One app...
Alexandre V. Evfimievski, Johannes Gehrke, Ramakri...
PODS
2008
ACM
178views Database» more  PODS 2008»
16 years 7 months ago
The chase revisited
We revisit the classical chase procedure, studying its properties as well as its applicability to standard database problems. We settle (in the negative) the open problem of decid...
Alin Deutsch, Alan Nash, Jeffrey B. Remmel
PODS
2008
ACM
155views Database» more  PODS 2008»
16 years 7 months ago
The recovery of a schema mapping: bringing exchanged data back
A schema mapping is a specification that describes how data from a source schema is to be mapped to a target schema. Once the data has been transferred from the source to the targ...
Marcelo Arenas, Jorge Pérez, Cristian River...
EDBT
2008
ACM
122views Database» more  EDBT 2008»
16 years 7 months ago
Semantic peer, here are the neighbors you want!
Peer Data Management Systems (PDMSs) have been introduced as a solution to the problem of large-scale sharing of semantically rich data. A PDMS consists of semantic peers connecte...
Wilma Penzo, Stefano Lodi, Federica Mandreoli, Ric...