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SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
15 years 10 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
PODS
2005
ACM
211views Database» more  PODS 2005»
15 years 10 months ago
Join-distinct aggregate estimation over update streams
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. Pro...
Sumit Ganguly, Minos N. Garofalakis, Amit Kumar, R...
EDBT
2004
ACM
174views Database» more  EDBT 2004»
15 years 10 months ago
Processing Data-Stream Join Aggregates Using Skimmed Sketches
There is a growing interest in on-line algorithms for analyzing and querying data streams, that examine each stream element only once and have at their disposal, only a limited amo...
Sumit Ganguly, Minos N. Garofalakis, Rajeev Rastog...
EDBT
2004
ACM
147views Database» more  EDBT 2004»
15 years 10 months ago
Projection Pushing Revisited
The join operation, which combines tuples from multiple relations, is the most fundamental and, typically, the most expensive operation in database queries. The standard approach t...
Benjamin J. McMahan, Guoqiang Pan, Patrick Porter,...
PERCOM
2007
ACM
15 years 9 months ago
Spray and Focus: Efficient Mobility-Assisted Routing for Heterogeneous and Correlated Mobility
Intermittently connected mobile networks are wireless networks where most of the time there does not exist a complete path from the source to the destination. There are many real ...
Thrasyvoulos Spyropoulos, Konstantinos Psounis, Ca...