Work place: Rajiv Gandhi Institute of Technology, Andheri (w), Mumbai-400053 University of Mumbai, INDIA
Research Interests: Engineering, Computational Engineering, Computational Science and Engineering
Jyoti Deshmukh is Ph.D. Research Scholar, Department of Electronics and Telecommunication Engineering, Rajiv Gandhi Institute of Technology, Mumbai, and University of Mumbai, India. She received her B. Tech (Computer Science and Technology) from SNDT University, Mumbai in the year 2004 and ME (Computer Engineering) from University of Mumbai in 2008. She is working as Assistant Professor in the department of Computer Engineering, Rajiv Gandhi Institute of Technology, Mumbai, India.
DOI: https://doi.org/10.5815/ijigsp.2017.07.07, Pub. Date: 8 Jul. 2017
Among women, 12% possibility of developing a breast cancer and 3.5% possibility of mortality due to this cause is reported . Nowadays early detection of breast cancer became very important. Mammogram - a breast X-ray is used to investigate and diagnose breast cancer. In this paper, authors propose GLCM (Grey Level Co-occurrence Matrix) feature based improved mammogram classification using an associative classifier. Mining of association rules from mammogram dataset discovers frequently occurring patterns. It depends on user specified minimum confidence and support value. This dependency causes an increase in search space. The authors propose two-phase optimization procedure to overcome these limitations.
The initial phase comprises feature optimization by adopting proposed PreARM (Pre-processing step for Association Rule Mining) method. The next phase comprises association rule optimization by adopting proposed ESAR (Extraction of Strong Association Rules) method to generate efficient, highly correlated and robust rules. Proposed associative classification method is substantiated by adapting authentic MIAS and DDSM mammogram database. The experimentation concedes 91% and 90% trimming of GLCM features and association rules by adopting PreARM and ESAR algorithms respectively. Using optimized association rules, the classification accuracies procured for MIAS and DDSM datasets are 92% and 94% respectively. Area under Receiver Operating Characteristic (ROC) curves obtained by proposed system for MIAS and DDSM datasets are 0.9656 and 0.9285 respectively. Results of GLCM based associative classifier are compared with GLCM based Random Forest (RF), an ensemble learning method. The experimental result shows that GLCM based associative classifier outperforms RF method with respect to accuracy and AUC, and it is a promising method for mammogram classification.
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