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INFOCOM
2003
IEEE
15 years 9 months ago
Optimal replacement policies for non-uniform cache objects with optional eviction
Abstract— Replacement policies for general caching applications and Web caching in particular have been discussed extensively in the literature. Many ad-hoc policies have been pr...
Omri Bahat, Armand M. Makowski
PODS
2010
ACM
249views Database» more  PODS 2010»
15 years 9 months ago
Semantic query optimization in the presence of types
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
Michael Meier 0002, Michael Schmidt, Fang Wei, Geo...
VLSID
2002
IEEE
100views VLSI» more  VLSID 2002»
15 years 9 months ago
Layout-Driven Timing Optimization by Generalized De Morgan Transform
We propose a timing-oriented logic optimization technique called Generalized De Morgan (GDM) transform, that integrates gate resizing, net buffering and De Morgan transformation. ...
Supratik Chakraborty, Rajeev Murgai
ICDT
2001
ACM
162views Database» more  ICDT 2001»
15 years 9 months ago
Algebraic Rewritings for Optimizing Regular Path Queries
Rewriting queries using views is a powerful technique that has applications in query optimization, data integration, data warehousing etc. Query rewriting in relational databases ...
Gösta Grahne, Alex Thomo
TMM
2002
94views more  TMM 2002»
15 years 4 months ago
A jointly optimal fractal/DCT compression scheme
In this paper a hybrid fractal and Discrete Cosine transform (DCT) coder is developed. Drawing on the ability of DCT to remove inter-pixel redundancies and on the ability of fracta...
Gerry Melnikov, Aggelos K. Katsaggelos