Title
A Harmony Search Based Wrapper Feature Selection Method for Holistic Bangla word Recognition.
Abstract
A lot of search approaches have been explored for the selection of features in pattern classification domain in order to discover significant subset of the features which produces better accuracy. In this paper, we introduced a Harmony Search (HS) algorithm based feature selection method for feature dimensionality reduction in handwritten Bangla word recognition problem. This algorithm has been implemented to reduce the feature dimensionality of a technique described in one of our previous papers by Bhowmik et al.1. In the said paper, a set of 65 elliptical features were computed for handwritten Bangla word recognition purpose and a recognition accuracy of 81.37% was achieved using Multi Layer Perceptron (MLP) classifier. In the present work, a subset containing 48 features (approximately 75% of said feature vector) has been selected by HS based wrapper feature selection method which produces an accuracy rate of 90.29%. Reasonable outcomes also validates that the introduced algorithm utilizes optimal number of features while showing higher classification accuracies when compared to two standard evolutionary algorithms like Genetic Algorithm (GA), Particle Swarm Optimization (PSO) and statistical feature dimensionality reduction technique like Principal Component Analysis (PCA). This confirms the suitability of HS algorithm to the holistic handwritten word recognition problem.
Year
DOI
Venue
2017
10.1016/j.procs.2016.06.087
Procedia Computer Science
Keywords
Field
DocType
Bangla Script,Elliptical Features,Harmony Search,Holistic Word Recognition,Multi Layer Perceptron,Wrapper Feature Selection
Dimensionality reduction,Evolutionary algorithm,Feature selection,Computer science,Feature (machine learning),HS algorithm,Artificial intelligence,Feature vector,Pattern recognition,Feature (computer vision),Speech recognition,Harmony search,Machine learning
Journal
Volume
ISSN
Citations 
89
1877-0509
1
PageRank 
References 
Authors
0.39
10
5
Name
Order
Citations
PageRank
Supratim Das112.08
Pawan Kumar Singh210.72
Showmik Bhowmik3197.10
Ram Sarkar442068.85
Mita Nasipuri5725107.01