Journal
MULTIMEDIA TOOLS AND APPLICATIONS
Volume 79, Issue 45-46, Pages 34407-34427Publisher
SPRINGER
DOI: 10.1007/s11042-020-09198-6
Keywords
Cohort; LSTM; Handwriting recognition
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In this article, a handwriting recognition model whose complexity does not depend on the lexicon size is proposed. It is an alternative to lexicon-driven decoding, based on alexicon verificationprocess that allows to deal with millions of words, without any time consuming decoding stage. This lexicon verification is included in a cascade framework that uses complementary LSTM RNN classifiers. An original and very efficient method to obtain hundreds of complementary LSTM RNN extracted from a single training, calledcohort, is proposed. The proposed approach achieves new state-of-the art performance on the Rimes and IAM datasets, and provides 90% of accuracy on the Rimes dataset when dealing with a gigantic lexicon record of 3 millions of words. The last contribution extends the idea of cohort and lexicon verification in a ROVER combination for handwriting line recognition, and achieves state-of-the-art results on the Rimes dataset.
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