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DVHMM: variable length text recognition error model
Description
This paper proposes a text recognition error model called the dual variable length output hidden Markov model (DVHMM) and gives a parameter estimation algorithm based on the EM algorithm. Although existing probabilistic error models are limited to substitution (1, 1), insertion (1, 0), and deletion (0, 1) errors, the DVHMM can handle error patterns of any pair (i, j) of lengths including substitution, insertion, and deletion.
Journal
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- Object recognition supported by user interaction for service robots
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Object recognition supported by user interaction for service robots 3 110-114, 2003-06-25
IEEE Comput. Soc