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» Instance optimal query processing in spatial networks
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WSDM
2009
ACM
104views Data Mining» more  WSDM 2009»
14 years 2 months ago
Top-k aggregation using intersections of ranked inputs
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...
Ravi Kumar, Kunal Punera, Torsten Suel, Sergei Vas...
IJCAI
2003
13 years 9 months ago
A New Look at the Semantics and Optimization Methods of CP-Networks
Preference elicitation is a serious bottleneck in many decision support applications and agent specification tasks. CP-nets were designed to make the preference elicitation proces...
Ronen I. Brafman, Yannis Dimopoulos
DEBU
2000
147views more  DEBU 2000»
13 years 7 months ago
XJoin: A Reactively-Scheduled Pipelined Join Operator
Wide-area distribution raises significant performance problems for traditional query processing techniques as data access becomes less predictable due to link congestion, load imb...
Tolga Urhan, Michael J. Franklin
SIGMOD
2004
ACM
262views Database» more  SIGMOD 2004»
14 years 8 months ago
The Next Database Revolution
Database system architectures are undergoing revolutionary changes. Most importantly, algorithms and data are being unified by integrating programming languages with the database ...
Jim Gray
SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
14 years 8 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