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Title: Training hidden markov models with the taguchi method
Authors: Coelho, J.P.
Cunha, José Boaventura
Oliveira, Paulo
Keywords: Hidden Markov models
Taguchi method
Optimization problems
Issue Date: 2010
Citation: Coelho, João; Cunha, José; Oliveira, Paulo (2010) - Training hidden markov models with the taguchi method. In 9th Portuguese Conference on Automatic Control.
Abstract: In some control systems structures, like predictive control, mathematical models for the control process must be derived. Those models can be obtained by a broad class of methods like parametric models applied to experimental data. In this context, and for systems with multiple operation regimes, the Hidden Markov model, due to its properties, is a convincing choice. However the parameter estimation of this type of models involves the optimization of a non-convex cost function. So the Baum-Welch method only can find sub-optimal parameters. This article shows that the use of the Taguchi method minimizes the training algorithm sensibility local minima.
Peer review: yes
Appears in Collections:DE - Artigos em Proceedings Não Indexados ao ISI/Scopus

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