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PODS
2005
ACM
151views Database» more  PODS 2005»
14 years 8 months ago
Estimating arbitrary subset sums with few probes
Suppose we have a large table T of items i, each with a weight wi, e.g., people and their salary. In a general preprocessing step for estimating arbitrary subset sums, we assign e...
Noga Alon, Nick G. Duffield, Carsten Lund, Mikkel ...
PODS
2006
ACM
137views Database» more  PODS 2006»
14 years 8 months ago
Data exchange: computing cores in polynomial time
Data exchange deals with inserting data from one database into another database having a different schema. We study and solve a central computational problem of data exchange, nam...
Georg Gottlob, Alan Nash
PODS
2006
ACM
196views Database» more  PODS 2006»
14 years 8 months ago
The containment problem for REAL conjunctive queries with inequalities
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
T. S. Jayram, Phokion G. Kolaitis, Erik Vee
PODS
2006
ACM
138views Database» more  PODS 2006»
14 years 8 months ago
Efficiently ordering subgoals with access constraints
d Abstract] Guizhen Yang Artificial Intelligence Center SRI International Menlo Park, CA 94025, USA Michael Kifer Dept. of Computer Science Stony Brook University Stony Brook, NY 1...
Guizhen Yang, Michael Kifer, Vinay K. Chaudhri
ICSE
2005
IEEE-ACM
14 years 8 months ago
Verifying safety policies with size properties and alias controls
Many software properties can be analysed through a relational size analysis on each function's inputs and outputs. Such relational analysis (through a form of dependent typin...
Wei-Ngan Chin, Siau-Cheng Khoo, Shengchao Qin, Cor...