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» Approximate Satisfiability and Equivalence
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HPCA
2005
IEEE
16 years 7 days ago
On the Limits of Leakage Power Reduction in Caches
If current technology scaling trends hold, leakage power dissipation will soon become the dominant source of power consumption in high performance processors. Caches, due to the f...
Yan Meng, Timothy Sherwood, Ryan Kastner
PODS
2004
ACM
98views Database» more  PODS 2004»
16 years 5 hour ago
Processing First-Order Queries under Limited Access Patterns
We study the problem of answering queries over sources with limited access patterns. Given a first-order query Q, the problem is to decide whether there is an equivalent query whi...
Alan Nash, Bertram Ludäscher
PODS
2008
ACM
129views Database» more  PODS 2008»
16 years 3 hour ago
Tree-width and functional dependencies in databases
Conjunctive query (CQ) evaluation on relational databases is NP-complete in general. Several restrictions, like bounded tree-width and bounded hypertree-width, allow polynomial ti...
Isolde Adler
EDBT
2004
ACM
155views Database» more  EDBT 2004»
16 years 2 hour ago
Processing Unions of Conjunctive Queries with Negation under Limited Access Patterns
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
Alan Nash, Bertram Ludäscher
DCC
2008
IEEE
15 years 11 months ago
Rate-Distortion Functions for Nonstationary Gaussian Autoregressive Processes
Source coding theorems and Shannon rate-distortion functions were studied for the discrete-time Wiener process by Berger and generalized to nonstationary Gaussian autoregressive p...
Robert M. Gray, Takeshi Hashimoto