Title :
A qth-order tree-based method for multiscale modeling of stochastic dynamic processes
Author :
Zhang, Yanfeng ; Ge, Quanbo ; Zhou, Funa ; Wen, Chenglin
Author_Institution :
Coll. of Comput. & Inf. Eng., Henan Univ., Kaifeng, China
Abstract :
In this paper, based on using an extremely efficient and highly parallelizable algorithm for optimal estimate of multiscale stochastic model, we develop how the multiscale model of qth-order tree can be used to represent 1-D reciprocal process defined on the unit interval. At first, the initial state of multiscale recursive model is defined as a (q+1)-dimensional vector at the coarsest scale of the qth-order tree. Second, new interpolation points are produced at 1/q point of the child-interval which is generated from the unit interval by equally dividing into q parts. The corresponding conditional probability density functions are gained. Combining with Markovian we can produce the parameters of multiscale stochastic model by recursion this process and the property of conditional independence. Thus, the qth-order tree multiscale representation of a class of stochastic process is constructed in detail. A more general qth-order tree multiscale stochastic model is constructed for the signal and process that have Markovian, which in turn provides the theory basis for solution of the practical problems.
Keywords :
Markov processes; interpolation; probability; recursive estimation; stochastic systems; trees (mathematics); 1D reciprocal process; Markovian process; interpolation points; multiscale recursive model; multiscale stochastic modeling; parallelizable algorithm; probability density functions; qth order tree based method; stochastic dynamic processes; Concurrent computing; Educational institutions; Intelligent systems; Interpolation; Laboratories; Probability density function; Signal processing; State estimation; Stochastic processes; Stochastic systems;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1340563