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ICDT
2009
ACM
173views Database» more  ICDT 2009»
16 years 5 months ago
Containment of conjunctive queries on annotated relations
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
Todd J. Green
CADE
2006
Springer
16 years 4 months ago
Stratified Context Unification Is NP-Complete
Context Unification is the problem to decide for a given set of second-order equations E where all second-order variables are unary, whether there exists a unifier, such that for e...
Jordi Levy, Manfred Schmidt-Schauß, Mateu Vi...
DAC
2009
ACM
15 years 11 months ago
Variational capacitance extraction of on-chip interconnects based on continuous surface model
In this paper we present a continuous surface model to describe the interconnect geometric variation, which improves the currently used model for better accuracy while not increas...
Wenjian Yu, Chao Hu, Wangyang Zhang
COCO
2009
Springer
98views Algorithms» more  COCO 2009»
15 years 11 months ago
Extractors for Varieties
We study the task of randomness extraction from sources which are distributed uniformly on an unknown algebraic variety. In other words, we are interested in constructing a functi...
Zeev Dvir
ASPDAC
2009
ACM
143views Hardware» more  ASPDAC 2009»
15 years 11 months ago
Statistical modeling and analysis of chip-level leakage power by spectral stochastic method
In this paper, we present a novel statistical full-chip leakage power analysis method. The new method can provide a general framework to derive the full-chip leakage current or po...
Ruijing Shen, Ning Mi, Sheldon X.-D. Tan, Yici Cai...