Lt. Thomas Scaria

Work place: Department of Computer Science, St. Pius X College, Kerala, India

E-mail: thomasscaria.pu@gmail.com

Website:

Research Interests: Medical Informatics, Computer systems and computational processes, Data Mining, Data Structures and Algorithms

Biography

Lt. Thomas Scaria is presently working as Assistant professor of Computer Science at Department Of computer Science, St.Pius College, Rajapuram, Kerala, India and an active Research Scholar at periyar University Salem. His Area of Interest Includes Data Mining in Bio Sciences and Bio Informatics. He Received his MCA degree from Periyar University in the Year 2003 and M.Phil in Computer Science from Annamalai University in the Year 2008. He Did his M.Sc Applied Psychology from Annamalai University in the Year 2012. He has to Credit 13 Years of teaching and 6 years of research experience.

Author Articles
Microarray Gene Retrieval System Based on LFDA and SVM

By Lt. Thomas Scaria T. Christopher

DOI: https://doi.org/10.5815/ijisa.2018.01.02, Pub. Date: 8 Jan. 2018

The DNA microarray technology enables the biologists to observe the expressions of multiple thousands of genes in parallel fashion. However, processing and gaining knowledge from the voluminous microarray gene data is serious issue. It is necessary for the biologists to retrieve the required data in a reasonable time. In order to address this issue, this work presents a gene retrieval system, which is based on feature dimensionality minimization and classification of the microarray gene data. The feature dimensionality minimization is achieved by Local Fisher Discriminant Analysis (LFDA), which inherits the merits of both Fisher Discriminant Analysis (FDA) and Locality Preserving Projection (LPP). Support Vector Machine (SVM) is employed as the classifier to classify between the genes. The LFDA is chosen for reducing the dimensionality of the features, owing to its better performance on multimodal data. The SVM is trained with the feature dimensionality reduced microarray gene data, which improves the efficiency and overthrows the computational complexity. The performance of the proposed approach is compared with the LPP and FDA. Additionally, the performance of SVM is compared with the k-Nearest Neighbour (k-NN) classifier. The combination of LFDA and SVM serves better in terms of accuracy, sensitivity and specificity.

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