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» A time aggregation approach to Markov decision processes
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ATVA
2007
Springer
115views Hardware» more  ATVA 2007»
15 years 8 months ago
A Compositional Semantics for Dynamic Fault Trees in Terms of Interactive Markov Chains
Abstract. Dynamic fault trees (DFTs) are a versatile and common formalism to model and analyze the reliability of computer-based systems. This paper presents a formal semantics of ...
Hichem Boudali, Pepijn Crouzen, Mariëlle Stoe...
ECSQARU
2001
Springer
15 years 6 months ago
Space-Progressive Value Iteration: An Anytime Algorithm for a Class of POMDPs
Abstract. Finding optimal policies for general partially observable Markov decision processes (POMDPs) is computationally difficult primarily due to the need to perform dynamic-pr...
Nevin Lianwen Zhang, Weihong Zhang
ICCV
2003
IEEE
16 years 3 months ago
Texture Segmentation by Multiscale Aggregation of Filter Responses and Shape Elements
Texture segmentation is a difficult problem, as is apparent from camouflage pictures. A Textured region can contain texture elements of various sizes, each of which can itself be ...
Meirav Galun, Eitan Sharon, Ronen Basri, Achi Bran...
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SIGMOD
1998
ACM
124views Database» more  SIGMOD 1998»
15 years 6 months ago
An Alternative Storage Organization for ROLAP Aggregate Views Based on Cubetrees
The Relational On-Line Analytical Processing (ROLAP) is emerging as thedominant approach in data warehousing with decision support applications. In order to enhance query performa...
Yannis Kotidis, Nick Roussopoulos
PVLDB
2008
138views more  PVLDB 2008»
15 years 1 months ago
A skip-list approach for efficiently processing forecasting queries
Time series data is common in many settings including scientific and financial applications. In these applications, the amount of data is often very large. We seek to support pred...
Tingjian Ge, Stanley B. Zdonik