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» An Algorithm for VP Ellipsis
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CADE
2005
Springer
14 years 7 months ago
Well-Nested Context Unification
Abstract. Context unification (CU) is the open problem of solving context equations for trees. We distinguish a new decidable variant of CU? well-nested CU ? and present a new unif...
Jordi Levy, Joachim Niehren, Mateu Villaret
POPL
2006
ACM
14 years 7 months ago
A fixpoint calculus for local and global program flows
We define a new fixpoint modal logic, the visibly pushdown ?-calculus (VP-?), as an extension of the modal ?-calculus. The models of this logic are execution trees of structured p...
Rajeev Alur, Swarat Chaudhuri, P. Madhusudan
ISAAC
2007
Springer
158views Algorithms» more  ISAAC 2007»
14 years 1 months ago
On the Expressive Power of Planar Perfect Matching and Permanents of Bounded Treewidth Matrices
Valiant introduced some 25 years ago an algebraic model of computation along with the complexity classes VP and VNP, which can be viewed as analogues of the classical classes P and...
Uffe Flarup, Pascal Koiran, Laurent Lyaudet
ICCAD
2010
IEEE
121views Hardware» more  ICCAD 2010»
13 years 5 months ago
Multi-Wafer Virtual Probe: Minimum-cost variation characterization by exploring wafer-to-wafer correlation
In this paper, we propose a new technique, referred to as MultiWafer Virtual Probe (MVP) to efficiently model wafer-level spatial variations for nanoscale integrated circuits. Tow...
Wangyang Zhang, Xin Li, Emrah Acar, Frank Liu, Rob...
FAW
2009
Springer
118views Algorithms» more  FAW 2009»
13 years 11 months ago
Space-Query-Time Tradeoff for Computing the Visibility Polygon
Abstract. Computing the visibility polygon, VP, of a point in a polygonal scene, is a classical problem that has been studied extensively. In this paper, we consider the problem of...
Mostafa Nouri, Mohammad Ghodsi