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ALGORITHMICA
2006
109views more  ALGORITHMICA 2006»
13 years 7 months ago
Computing All Immobilizing Grasps of a Simple Polygon with Few Contacts
: We study the output-sensitive computations of all the combinations of the edges and vertices of a simple polygon P that allow a form closure grasp with less than four point conta...
Jae-Sook Cheong, Herman J. Haverkort, A. Frank van...
FOCS
2006
IEEE
14 years 1 months ago
Explicit Exclusive Set Systems with Applications to Broadcast Encryption
A family of subsets C of [n] def = {1, . . . , n} is (r, t)exclusive if for every S ⊂ [n] of size at least n − r, there exist S1, . . . , St ∈ C with S = S1∪S2∪· · · ...
Craig Gentry, Zulfikar Ramzan, David P. Woodruff
JCO
2007
128views more  JCO 2007»
13 years 7 months ago
Approximation algorithms and hardness results for labeled connectivity problems
Let G = (V, E) be a connected multigraph, whose edges are associated with labels specified by an integer-valued function L : E → N. In addition, each label ℓ ∈ N has a non-...
Refael Hassin, Jérôme Monnot, Danny S...
APLAS
2005
ACM
13 years 9 months ago
Loop Invariants on Demand
This paper describes a sound technique that combines the precision em proving with the loop-invariant inference of abstract interpretation. The loop-invariant computations are invo...
K. Rustan M. Leino, Francesco Logozzo
ASAP
2004
IEEE
160views Hardware» more  ASAP 2004»
13 years 11 months ago
Architectural Support for Arithmetic in Optimal Extension Fields
Public-key cryptosystems generally involve computation-intensive arithmetic operations, making them impractical for software implementation on constrained devices such as smart ca...
Johann Großschädl, Sandeep S. Kumar, Ch...