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» Join Synopses for Approximate Query Answering
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SIGMOD
2001
ACM
104views Database» more  SIGMOD 2001»
14 years 7 months ago
Independence is Good: Dependency-Based Histogram Synopses for High-Dimensional Data
Approximating the joint data distribution of a multi-dimensional data set through a compact and accurate histogram synopsis is a fundamental problem arising in numerous practical ...
Amol Deshpande, Minos N. Garofalakis, Rajeev Rasto...
DEXA
2007
Springer
135views Database» more  DEXA 2007»
14 years 1 months ago
Semantic Grouping of Social Networks in P2P Database Settings
Abstract. Sharing of structured data in decentralized environments is a challenging problem, especially in the absence of a global schema. Social network structures map network lin...
Verena Kantere, Dimitrios Tsoumakos, Timos K. Sell...
IS
2008
13 years 7 months ago
A framework for semantic grouping in P2P databases
Abstract. Sharing of structured data in decentralized environments is a challenging problem, especially in the absence of a global schema. Social network structures map network lin...
Verena Kantere, Dimitrios Tsoumakos, Timos K. Sell...
EDBT
2008
ACM
103views Database» more  EDBT 2008»
14 years 7 months ago
A stratified approach to progressive approximate joins
Users often do not require a complete answer to their query but rather only a sample. They expect the sample to be either the largest possible or the most representative (or both)...
Wee Hyong Tok, Stéphane Bressan, Mong-Li Le...
ICDE
2010
IEEE
272views Database» more  ICDE 2010»
14 years 7 months ago
SMARTINT: A System for Answering Queries over Web Databases Using Attribute Dependencies
Many web databases can be seen as providing partial and overlapping information about entities in the world. To answer queries effectively, we need to integrate the information abo...
Ravi Gummadi, Anupam Khulbe, Aravind Kalavagattu, ...