Post Processing with First- and Second-Order Hidden Markov Models

Document Type

Conference Proceeding


In this paper, we present the implementation and evaluation of first order and second order Hidden Markov Models to identify and correct OCR errors in the post processing of books. Our experiments show that the first order model approximately corrects 10% of the errors with 100% precision, while the second order model corrects a higher percentage of errors with much lower precision.


Hidden Markov models; Optical character recognition; Optical character recognition devices


Civil and Environmental Engineering | Computer Engineering | Engineering


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