Fuzzy model based recognition of handwritten Hindi characters

Hanmandlu, Madasu, Murthy, O.V. Ramana, & Madasu, Vamsi K. (2007) Fuzzy model based recognition of handwritten Hindi characters. In Bottema, Murk J., Maeder, Anthony J., Redding, Nick, & van den Hengel, Anton (Eds.) 9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007), 3-5 December 2007, Glenelg, South Australia.

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This paper presents the recognition of handwritten Hindi Characters based on the modified exponential membership function fitted to the fuzzy sets derived from features consisting of normalized distances obtained using the Box approach. The exponential membership function is modified by two structural parameters that are estimated by optimizing an objective function that includes the entropy and error function. A Reuse Policy that provides guidance from the past policies is utilized to improve the reinforcement learning. This relies on the past errors exploiting the past policies. The Reuse Policy improves the speed of convergence of the learning process over the strategies that learn without reuse and combined with the use of the reinforcement learning, there is a 25-fold improvement in training. Experimentation is carried out on a database of 4750 samples. The overall recognition rate is found to be 90.65%.

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ID Code: 12742
Item Type: Conference Paper
Refereed: Yes
Keywords: Hindi Character Recognition, Fuzzy modeling, Entropy Optimization, Reinforced Learning
DOI: 10.1109/DICTA.2007.4426832
ISBN: 0769530672
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Neural Evolutionary and Fuzzy Computation (080108)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Pattern Recognition and Data Mining (080109)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2007 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 29 Feb 2008 00:00
Last Modified: 10 Aug 2011 14:30

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