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» Aggregating time partitions
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VLDB
2004
ACM
119views Database» more  VLDB 2004»
14 years 7 months ago
Evaluating holistic aggregators efficiently for very large datasets
Indatawarehousingapplications,numerousOLAP queries involve the processing of holistic aggregators such as computing the "top n," median, quantiles, etc. In this paper, we...
Lixin Fu, Sanguthevar Rajasekaran
AUTOMATICA
2002
83views more  AUTOMATICA 2002»
13 years 7 months ago
A time aggregation approach to Markov decision processes
We propose a time aggregation approach for the solution of in
Xi-Ren Cao, Zhiyuan Ren, Shalabh Bhatnagar, Michae...
PPSWR
2004
Springer
14 years 24 days ago
Calendrical Calculations with Time Partitionings and Fuzzy Time Intervals
This paper presents a piece in a big mosaic which consists of formalisms and software packages for representing and reasoning with everyday temporal notions. The kernel of the mosa...
Hans Jürgen Ohlbach
DSRT
2005
IEEE
14 years 1 months ago
Modeling Decentralized Real-Time Control by State Space Partition of Timed Automata
Timed automata provide useful state machine based representations for the validation and verification of realtime control systems. This paper introduces an algorithmic methodolog...
Thanikesavan Sivanthi, Srivas Chennu, Lothar Kreft
CDC
2010
IEEE
160views Control Systems» more  CDC 2010»
13 years 2 months ago
Aggregation-based model reduction of a Hidden Markov Model
This paper is concerned with developing an information-theoretic framework to aggregate the state space of a Hidden Markov Model (HMM) on discrete state and observation spaces. The...
Kun Deng, Prashant G. Mehta, Sean P. Meyn