DVHMM: variable length text recognition error model
DVHMM: variable length text recognition error model
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DVHMM:变长文本识别错误模型
DOI:
10.1109/icpr.2002.1047807
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
K. Aihara
中科院分区:
文献类型:
--
作者:
A. Takasu;K. Aihara
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.