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Tamil palm leaf manuscript characters in the form of images were processed and segmented using contour-based convex hull bounding box segmentation. The segmented characters were transformed into two forms: Binary Coded Value and the Gray-Level Co-occurrence Matrix (GLCM) feature. The features extracted from the segmented characters were trained by the proposed method of the Modified Adaptive Backpropagation Network (MABPN) algorithm with Shannon activation function. Weight initialization plays an important role in the Backpropagation Neural Network, and hence Nguyen-Widrow weight initialization was introduced to initialize the weights instead of random weight initialization in the proposed method. The models evaluated are MABPN with Shannon activation function using Nguyen-Widrow weight initialization in two forms of input: Binary Coded Value and GLCM feature extracted values. The proposed method with GLCM features as input gave a promising result over binary coded transform.<\/jats:p>","DOI":"10.1145\/3406209","type":"journal-article","created":{"date-parts":[[2020,10,2]],"date-time":"2020-10-02T10:11:40Z","timestamp":1601633500000},"page":"1-24","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":10,"title":["Classification of Ancient Handwritten Tamil Characters on Palm Leaf Inscription Using Modified Adaptive Backpropagation Neural Network with GLCM Features"],"prefix":"10.1145","volume":"19","author":[{"given":"Poornima Devi.","family":"M","sequence":"first","affiliation":[{"name":"University of Madras, Chennai, Tamil Nadu, India"}]},{"given":"M.","family":"Sornam","sequence":"additional","affiliation":[{"name":"University of Madras, Chennai, Tamil Nadu, India"}]}],"member":"320","published-online":{"date-parts":[[2020,10,2]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.26483\/ijarcs.v8i7.4560"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.aasri.2013.10.045"},{"key":"e_1_2_1_3_1","doi-asserted-by":"crossref","unstructured":"P. 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