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Pattern Recognition
Volume 23, Issue 5, 1990, Pages 501-508
 
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doi:10.1016/0031-3203(90)90071-R    How to Cite or Link Using DOI (Opens New Window)
Copyright © 1990 Published by Elsevier Science B.V.

Fast dictionary look-up for contextual word recognition*1

C. J. Wells, L. J. EvettCorresponding Author Contact Information, P. E. Whitby and R. J. Whitrow

Department of Computing, Trent Polytechnic, Burton Street, Nottingham NG1 4BU, U.K.

Received 24 February 1989; 
revised 29 August 1989. 
Available online 19 May 2003.

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Abstract

Script recognition systems require the use of context in order to increase the accuracy of their output. One level of context commonly used is that of the surrounding letters. It is demonstrated that the most effective method for utilizing such context is via a dictionary look-up. The present paper describes a data structure for representing a large dictionary (about 60,000 words) which can be searched in real time and uses a practical amount of memory.

Author Keywords: Dictionary; Lexicon; Script recognition; Transitional probabilities; n-grams

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