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WWW
2003
ACM
16 years 7 months ago
Social Network Extraction of Conference Participants
In a ubiquitous computing environment, it is desirable to provide a user with information depending on a user's situation, such as time, location, user behavior, and social c...
Hironori Tomobe, Kôiti Hasida, Mitsuru Ishiz...
ICLP
2009
Springer
16 years 7 months ago
Preprocessing for Optimization of Probabilistic-Logic Models for Sequence Analysis
Abstract. A class of probabilistic-logic models is considered, which increases the expressibility from HMM's and SCFG's regular and contextfree languages to, in principle...
Henning Christiansen, Ole Torp Lassen
STOC
2009
ACM
91views Algorithms» more  STOC 2009»
16 years 7 months ago
Inaccessible entropy
We put forth a new computational notion of entropy, which measures the (in)feasibility of sampling high entropy strings that are consistent with a given protocol. Specifically, we...
Iftach Haitner, Omer Reingold, Salil P. Vadhan, Ho...
CCS
2009
ACM
16 years 7 months ago
A new hash family obtained by modifying the SHA-2 family
In this work, we study several properties of the SHA-2 design which have been utilized in recent collision attacks against reduced round SHA-2. Small modifications to the SHA-2 des...
Somitra Kumar Sanadhya, Palash Sarkar
CAV
2009
Springer
135views Hardware» more  CAV 2009»
16 years 7 months ago
Sliding Window Abstraction for Infinite Markov Chains
Window Abstraction for Infinite Markov Chains Thomas A. Henzinger1 , Maria Mateescu1 , and Verena Wolf1,2 1 EPFL, Switzerland 2 Saarland University, Germany Abstract. We present an...
Thomas A. Henzinger, Maria Mateescu, Verena Wolf
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