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APAL
2005
97views more  APAL 2005»
13 years 9 months ago
Polarized and focalized linear and classical proofs
We give the precise correspondence between polarized linear logic and polarized classical logic. The properties of focalization and reversion of linear proofs are at the heart of ...
Olivier Laurent, Myriam Quatrini, Lorenzo Tortora ...
INFORMATICALT
2007
81views more  INFORMATICALT 2007»
13 years 9 months ago
Security Flaw in Simple Generalized Group-Oriented Cryptosystem Using ElGamal Cryptosystem
A generalized group-oriented cryptosystem (GGOC) based on ElGamal cryptosystem was proposed by Yang et al. in 2003. This study shows that if the authorized decryption sets of users...
Chuan-Ming Li, Tzonelih Hwang, Narn-Yih Lee
TSP
2008
106views more  TSP 2008»
13 years 9 months ago
Identification of Matrices Having a Sparse Representation
We consider the problem of recovering a matrix from its action on a known vector in the setting where the matrix can be represented efficiently in a known matrix dictionary. Conne...
Götz E. Pfander, Holger Rauhut, Jared Tanner
JSYML
2007
79views more  JSYML 2007»
13 years 9 months ago
Models of non-well-founded sets via an indexed final coalgebra theorem
The paper uses the formalism of indexed categories to recover the proof of a standard final coalgebra theorem, thus showing existence of final coalgebras for a special class of ...
Federico De Marchi, Benno van den Berg
CG
2002
Springer
13 years 9 months ago
Towards robust broadcasting of geometry data
We present new algorithms for the robust transmission of geometric data sets, i.e. transmission which allows the receiver to recover (an approximation of) the original geometric o...
Stephan Bischoff, Leif Kobbelt