A NOVEL EVOLUTIONARY ALGORITHM FOR DATA CLUSTERING IN N DIMENSIONAL SPACE
Journal Title: Indian Journal of Computer Science and Engineering - Year 2011, Vol 2, Issue 6
Abstract
K-means clustering algorithm is one of the main algorithms applying in machine learning and pattern recognition. However, as the center of clusters are selected randomly and also due to the dependence of clustering result on the initial centers of clusters we may trap into local optima centers. In this paper a new genetic algorithm approach based on k-means algorithm is suggested in which the centers of clusters are selected better and in an appropriate manner. In order to increase the efficiency of this algorithm, in each stage, the layout of cluster centers which are in the form of chromosomes are changed with respect to the best chromosome. By estimation of results of the proposed approach on a standard data set and also comparison of this algorithm with other related algorithms we can show that our approach is more efficient than k-means algorithm and other algorithms which have been selected in this paper for comparison purposes.
Authors and Affiliations
Roohollah Etemadi , Alireza Hajieskandar
Analysis and evaluation of Feature selectors in opinion mining
Computational performance is improved by use of basic feature selection in most of the research works. Sentiment analysis identifies whether opinion expressed on a topic in a document is positive or negative. But many po...
A STUDY ON DIFFERENT FEATURE EXTRACTION TECHNIQUES FOR LESION IDENTIFICATION IN MRI BREAST IMAGES
This study discusses the different feature extraction techniques for lesion identification in Dynamic Contrast Enhancement - Magnetic Resonance Imaging (DCE - MRI) of Breast. In DCE- MRI, kinetic feature extraction is a...
AN IMPROVED DOMAIN CLASSIFICATION SCHEME BASED ON LOCAL FRACTAL DIMENSION
In fractal image compression, most of the time during encoding is spent for finding the best matching pair of range-domain blocks. Different techniques have been analyzed for decreasing the number of operations required...
Performance Evolution of Various Wavelets in Cervical Lesion Detection
Cervical cancer is one of most common cancers among women in the world caused by human papilloma virus infection. It develops in the tissue of cervix which connects upper body of the uterus to the vagina. The types of ca...
A TRAILBLAZING MODUS OPERANDI TO FACE IDENTIFICATION USING A RECKONING ARCHETYPAL PRINCIPAL COMPONENT ANALYSIS
Face identification is a task of designating human faces with exact names, akin to identifying between similar twins. The work was motivated and is imbibed by physiology and information theory domains. The approach treat...