title: An integrated algorithm for text recognition: comparison with a cascaded algorithm.
abstract: The use of diverse knowledge sources in text recognition and in correction of letter substitution errors in words of text is considered. Three knowledge sources are defined: channel characteristics as probabilities that observed letters are corruptions of other letters, bottom-up context as letter conditional probabilities (when the previous letters of the word are known), and top-down context as a lexicon. Two algorithms, one based on integrating the knowledge sources in a single step and the other based on sequentially cascading bottom-up and top-down processes, are compared in terms of computational/storage requirements and results of experimentation.
authors.affiliation: Department of Computer Science, State University of New York at Buffalo, Amherst, NY 14226.
authors.forename: J J
authors.initials: JJ
authors.lastname: Hull
authors.forename: S N
authors.initials: SN
authors.lastname: Srihari
authors.forename: R
authors.initials: R
authors.lastname: Choudhari