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ICML
1995
IEEE
15 years 11 months ago
Stable Function Approximation in Dynamic Programming
The success ofreinforcement learninginpractical problems depends on the ability to combine function approximation with temporal di erence methods such as value iteration. Experime...
Geoffrey J. Gordon
ADC
2006
Springer
128views Database» more  ADC 2006»
15 years 4 months ago
Horn clauses and functional dependencies in complex-value databases
We extend Fagin’s result on the equivalence between functional dependencies in relational databases and propositional Horn clauses. It is shown that this equivalence still holds...
Sven Hartmann, Sebastian Link
LICS
2010
IEEE
14 years 8 months ago
Regular Cost Functions over Finite Trees
We develop the theory of regular cost functions over finite trees: a quantitative extension to the notion of regular languages of trees: Cost functions map each input (tree) to a v...
Thomas Colcombet, Christof Löding
CRYPTO
2004
Springer
79views Cryptology» more  CRYPTO 2004»
15 years 3 months ago
Multicollisions in Iterated Hash Functions. Application to Cascaded Constructions
Abstract. In this paper, we study the existence of multicollisions in iterated hash functions. We show that finding multicollisions, i.e. r-tuples of messages that all hash to the...
Antoine Joux
IJCV
2002
232views more  IJCV 2002»
14 years 9 months ago
Diffusion Snakes: Introducing Statistical Shape Knowledge into the Mumford-Shah Functional
We present a modification of the Mumford-Shah functional and its cartoon limit which facilitates the incorporation of a statistical prior on the shape of the segmenting contour. By...
Daniel Cremers, Florian Tischhäuser, Joachim ...