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  1. Oncina, J.; Sebban, M.
    "Learning stochastic edit distance: Application in handwritten character recognition"
    Pattern Recognition, vol. 39, pp. 1575-1587 (2006)
    : bibtex : pdf

    Many pattern recognition algorithms are based on the nearest neighbour search and use the well known edit distance, for which the primitive edit costs are usually fixed in advance. In this article, we aim at learning an unbiased stochastic edit distance in the form of a finite-state transducer from a corpus of input, output pairs of strings. Contrary to the other standard methods, which generally use the Expectation Maximisation algorithm, our algorithm learns a transducer independently on the marginal probability distribution of the input strings. Such an unbiased way to proceed requires to optimise the parameters of a conditional transducer instead of a joint one. We apply our new model in the context of handwritten digit recognition. We show, carrying out a large series of experiments, that it always outperforms the standard edit distance.

@article {
 author = "Oncina, J.; Sebban, M.",
 title  = "Learning stochastic edit distance: Application in handwritten character recognition",
 journal = "Pattern Recognition",
 month = "september",
 number = "9",
 pages = "1575-1587",
 volume = "39",
 year = "2006"
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