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APPROX
2006
Springer
107views Algorithms» more  APPROX 2006»
15 years 1 months ago
A Fast Random Sampling Algorithm for Sparsifying Matrices
We describe a simple random-sampling based procedure for producing sparse matrix approximations. Our procedure and analysis are extremely simple: the analysis uses nothing more th...
Sanjeev Arora, Elad Hazan, Satyen Kale
ATAL
2008
Springer
14 years 12 months ago
Quantifying over coalitions in epistemic logic
Some natural epistemic properties which may arise in applications can only be expressed in standard epistemic logic by formulae which are exponentially long in the number of agent...
Thomas Ågotnes, Wiebe van der Hoek, Michael ...
PVLDB
2010
103views more  PVLDB 2010»
14 years 8 months ago
Probabilistic XML via Markov Chains
We show how Recursive Markov Chains (RMCs) and their restrictions can define probabilistic distributions over XML documents, and study tractability of querying over such models. ...
Michael Benedikt, Evgeny Kharlamov, Dan Olteanu, P...
FSTTCS
2009
Springer
15 years 4 months ago
Automata and temporal logic over arbitrary linear time
Linear temporal logic was introduced in order to reason about reactive systems. It is often considered with respect to infinite words, to specify the behaviour of long-running sys...
Julien Cristau
RISE
2004
Springer
15 years 3 months ago
A Symbolic Model Checker for tccp Programs
In this paper, we develop a symbolic representation for timed concurrent constraint (tccp) programs, which can be used for defining a lightweight model–checking algorithm for re...
María Alpuente, Moreno Falaschi, Alicia Vil...