EM Training of Hidden Markov Models for Shape Recognition Using Cyclic Strings
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Other documents of the author: Palazón González, Vicente; Marzal Varó, Andrés; Vilar Torres, Juan Miguel
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7038
comunitat-uji-handle3:10234/54899
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INVESTIGACIONMetadata
Title
EM Training of Hidden Markov Models for Shape Recognition Using Cyclic StringsDate
2013Publisher
Springer Berlin HeidelbergISBN
978-3-642-42050-4; 978-3-642-42051-1ISSN
0302-9743Bibliographic citation
Palazón González, Vicente; Marzal Varó, Andrés; Vilar Torres, Juan Miguel. "EM Training of Hidden Markov Models for Shape Recognition Using Cyclic Strings". En: Neural Information Processing – 20th International Conference, ICONIP 2013, Daegu, Korea, November 3-7, 2013. Proceedings, Part III/ Lee, M.,[et al.] (Eds.). Berlin : Springer, 2013. (Lecture Notes in Computer Science; 8228) . ISBN: 978-3-642-42050-4, pp. 317-324Type
info:eu-repo/semantics/bookPartPublisher version
http://link.springer.com/chapter/10.1007%2F978-3-642-42051-1_40Subject
Abstract
Shape descriptions and the corresponding matching techniques must be robust to noise and invariant to transformations for their use in recognition tasks. Most transformations are relatively easy to handle when contours ... [+]
Shape descriptions and the corresponding matching techniques must be robust to noise and invariant to transformations for their use in recognition tasks. Most transformations are relatively easy to handle when contours are represented by strings. However, starting point invariance is difficult to achieve. One interesting possibility is the use of cyclic strings, which are strings with no starting and final points. Here we present the use of Hidden Markov Models for modelling cyclic strings and their training using Expectation Maximization. Experimental results show that our proposal outperforms other methods in the literature. [-]