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» Analysis of Multivariate Hash Functions
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EOR
2006
97views more  EOR 2006»
13 years 9 months ago
Bayesian portfolio selection with multi-variate random variance models
We consider multi-period portfolio selection problems for a decision maker with a specified utility function when the variance of security returns is described by a discrete time ...
Refik Soyer, Kadir Tanyeri
FSE
2010
Springer
140views Cryptology» more  FSE 2010»
14 years 2 months ago
Cryptanalysis of ESSENCE
ESSENCE is a hash function submitted to the NIST Hash Competition that stands out as a hardware-friendly and highly parallelizable design. Previous analysis showed some non-randomn...
María Naya-Plasencia, Andrea Röck, Jea...
CRYPTO
2011
Springer
237views Cryptology» more  CRYPTO 2011»
12 years 9 months ago
The Collision Security of Tandem-DM in the Ideal Cipher Model
We prove that Tandem-DM, one of the two “classical” schemes for turning a blockcipher of 2n-bit key into a double block length hash function, has birthday-type collision resist...
Jooyoung Lee, Martijn Stam, John P. Steinberger
ISBI
2008
IEEE
14 years 10 months ago
Inferring brain dynamics using granger causality on fMRI data
Here we present a scalable method to compute the structure of causal links over large scale dynamical systems that achieves high efficiency in discovering actual functional connec...
Guillermo A. Cecchi, Rahul Garg, A. Ravishankar Ra...
ECCC
2011
207views ECommerce» more  ECCC 2011»
13 years 4 months ago
Balls and Bins: Smaller Hash Families and Faster Evaluation
A fundamental fact in the analysis of randomized algorithm is that when n balls are hashed into n bins independently and uniformly at random, with high probability each bin contai...
L. Elisa Celis, Omer Reingold, Gil Segev, Udi Wied...