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Dr. Ravichandran J.

Chairperson | Professor, Department of Mathematics, School of Engineering,Coimbatore

Qualification: MSc, Ph.D
j_ravichandran@cb.amrita.edu
Ph: +91 9865005528
Google Scholar Profile
Research Interest: Six Sigma, SPSS, statistical inference, Statistical Pattern Recognition, Statistical Quality Control, Total Quality Management

Bio

Dr. Ravichandran currently serves as Chairperson and Professor in the Department of Mathematics, School of Engineering, and Coimbatore.

Earlier, he served in the Statistical Quality Control Department of a manufacturing industry for more than 12 years. His research and subject areas of interest include statistical quality control, statistical inference, Six Sigma, Total Quality Management, Statistical Inference, Statistical Pattern Recognition and SPSS.

He has published two books and a number of papers on Six Sigma and Statistical Inference in international journals and websites. His papers have got more than 150 citations.

He is regularly reviewing research papers for the international journals such as The TQM Journal (Emerald Publications) and Total Quality Management and Business Excellence (Taylor and Francis – Routledge). He has guided one Ph.D. Scholar.

He has organized a two-day National Conference on Quality Improvement Concepts and their Implementation in Higher Educational Institution (QICIHEI – 2009).

Dr. Ravichandran served as resource person in many workshops and seminars (on Six Sigma, Statistics and SPSS) organized by various educational institutions and universities.

He was a Senior Member of American Society for Quality (1987 – 2007) and is a Life Member of Indian Society for Technical Education (ISTE)

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Publications

Journal Article

Year : 2021

A clustering method combining multiple range tests and K-means

Cite this Research Publication : T. J. Devika and Dr. Ravichandran J., “A clustering method combining multiple range tests and K-means”, Communications in Statistics - Theory and Methods, pp. 1-56, 2021.

Publisher : Communications in Statistics - Theory and Methods

Year : 2020

Performance evaluation of exponential distribution using Six Sigma-based tail probabilities.

Cite this Research Publication : S. Kalaivani and Dr. Ravichandran J., “Performance evaluation of exponential distribution using Six Sigma-based tail probabilities”, Communications in Statistics - Simulation and Computation, pp. 1-21, 2020.

Publisher : Communications in Statistics - Simulation and Computation, Taylor & Francis

Year : 2020

Six Sigma quality evaluation of life test data based on Weibull distribution

Cite this Research Publication : Niveditha A. and Dr. Ravichandran J., “Six Sigma quality evaluation of life test data based on Weibull distribution”, International Journal of Quality & Reliability Management, 2020.

Publisher : International Journal of Quality & Reliability Management

Year : 2019

Six Sigma metrics based on lognormal distribution for life tests

Cite this Research Publication : Dr. Ravichandran J., “Six Sigma metrics based on lognormal distribution for life tests”, International Journal of Quality & Reliability Management, vol. 36, no. 9, pp. 1477 - 1489, 2019.

Publisher : International Journal of Quality & Reliability Management

Year : 2019

Transistion Probabilities and ARL performance of Six Sigma zone control charts

Cite this Research Publication : Dr. Ravichandran J., “Transistion Probabilities and ARL performance of Six Sigma zone control charts”, Communications in Statistics - Theory and Methods, vol. 48, no. 16, pp. 3976 - 3991, 2019.

Publisher : Communications in Statistics - Theory and Methods

Year : 2019

Self-starting X-bar control chart based on Six Sigma quality and sometimes pooling procedure

Cite this Research Publication : Dr. Ravichandran J., “Self-starting X-bar control chart based on Six Sigma quality and sometimes pooling procedure”, Journal of Statistical Computation and Simulation, vol. 89, no. 2, pp. 362-377, 2019.

Publisher : Journal of Statistical Computation and Simulation

Year : 2019

A review of specification limits and control limits from the perspective of Six Sigma quality processes

Cite this Research Publication : Dr. Ravichandran J., “A review of specification limits and control limits from the perspective of Six Sigma quality processes”, International Journal of Six Sigma and Competitive Advantage , vol. 11, 1 vol., pp. Pages: 58 - 72, 2019.

Publisher : International Journal of Six Sigma and Competitive Advantage

Year : 2017

Six Sigma – Based Range And Standard Deviation Charts For Continuous Quality Improvement

Cite this Research Publication : Dr. Ravichandran J., “Six Sigma - Based Range And Standard Deviation Charts For Continuous Quality Improvement”, International Journal for Quality Research, vol. 11, no. 3, pp. 525-542, 2017.

Publisher : International Journal for Quality Research

Year : 2017

A Note on Determination of Sample Size from the Perspective of Six Sigma Quality

Cite this Research Publication : Dr. Ravichandran J., “A Note on Determination of Sample Size from the Perspective of Six Sigma Quality”, Journal of Modern Applied Statistical Methods, vol. 16, no. 1, 2017.

Publisher : Journal of Modern Applied Statistical Methods

Year : 2017

Quality Paper Control chart for high-quality processes based on Six Sigma quality

Cite this Research Publication : Dr. Ravichandran J., “Quality Paper Control chart for high-quality processes based on Six Sigma quality”, International Journal of Quality & Reliability Management, vol. 34 , pp. 2-17, 2017.

Publisher : International Journal of Quality Reliability Management

Year : 2016

Estimation of DPMO and EGPMO for Higher-the-Better and Lower-the-better Quality Characteristics for Quality Evaluation

Cite this Research Publication : Dr. Ravichandran J., “Estimation of DPMO and EGPMO for Higher-the-Better and Lower-the-better Quality Characteristics for Quality Evaluation”, Total Quality Management & Business Excellence, vol. 27, no. 10, pp. 1112 - 1120, 2016.

Publisher : Total Quality Management Business Excellence

Year : 2016

Six Sigma-based X-bar Control chart for Continuous Quality Improvement

Cite this Research Publication : Dr. Ravichandran J., “Six Sigma-based X-bar Control chart for Continuous Quality Improvement”, International Journal of Quality Research, vol. 10, no. 2, pp. 257 – 266, 2016.

Publisher : International Journal of Quality Research

Year : 2015

Control Chart for High Quality Processes Based on Six Sigma Quality

Publisher : International Journal of Quality and Reliability Management

Year : 2012

A review of preliminary test-based statistical methods for the benefit of Six Sigma quality practitioners

Cite this Research Publication : Dr. Ravichandran J., “A review of preliminary test-based statistical methods for the benefit of Six Sigma quality practitioners”, Statistical Papers, vol. 53, pp. 531-547, 2012.

Publisher : Statistical Papers

Year : 2011

A chi-square-based heuristic statistical procedure for approximating bid price in a competitive marketplace: A case study

Cite this Research Publication : Dr. Ravichandran J., “A chi-square-based heuristic statistical procedure for approximating bid price in a competitive marketplace: A case study”, Journal of Business and Industrial Marketing, vol. 27, pp. 69-76, 2011.

Publisher : Journal of Business and Industrial Marketing

Year : 2008

Finding the level of customer complaints

Cite this Research Publication : Dr. Ravichandran J., “Finding the level of customer complaints”, ISIXSIGMA, 2008.

Publisher : ISIXSIGMA

Year : 2008

The performance of treatments in single-factor experiments using Six Sigma metrics

Cite this Research Publication : Dr. Ravichandran J., “The performance of treatments in single-factor experiments using Six Sigma metrics”, International Journal of Six Sigma and Competitive Advantage, vol. 4, pp. 114-132, 2008.

Publisher : International Journal of Six Sigma and Competitive Advantage

Year : 2007

Cost‐based Process Weights for DPMO and the Overall Performance of an Organization

Cite this Research Publication : Dr. Ravichandran J., “Cost‐based Process Weights for DPMO and the Overall Performance of an Organization”, The TQM Magazine, vol. 19, pp. 442-453, 2007.

Publisher : The TQM Magazine

Year : 2007

Cost based process weights for DPMO and the overall sigma level of an organization

Cite this Research Publication : Dr. Ravichandran J., “Cost based process weights for DPMO and the overall sigma level of an organization”, TQM Magazine, vol. 19, 5 vol., pp. 442-453, 2007.

Publisher : TQM Magazine

Year : 2006

Using Weighted-DPMO to Calculate an Overall Sigma Level

Cite this Research Publication : Dr. Ravichandran J., “Using Weighted-DPMO to Calculate an Overall Sigma Level”, 2006.

Year : 2006

Six Sigma Milestones: An Overall Sigma Level of an Organization

Publisher : Total Quality Management Business Excellence

Year : 2006

Setting up a Quality Specification

Publisher : Six Sigma Forum Magazine

Year : 2004

Six Sigma

Cite this Research Publication : Dr. Ravichandran J., “Six Sigma”, INDUSTRY2.0, p. 82, 2004.

Publisher : INDUSTRY2.0,

Year : 1989

On power function of a conditionally specified test procedure in an unbalanced random effects model.

Cite this Research Publication : Dr. Ravichandran J. and Rao, C. V., “On power function of a conditionally specified test procedure in an unbalanced random effects model.”, Journal of Indian Society for Agricultural Statistics, vol. 41, 2 vol., pp. 176-192, 1989.

Publisher : Journal of Indian Society for Agricultural Statistics

Year : 1988

Inference based on conditional speclfication

Cite this Research Publication : Dr. Ravichandran J., Han, C. P., and Rao, C. V., “Inference based on conditional speclfication”, Communications in Statistics-Theory and Methods, vol. 17, no. 6, pp. 1945-1964, 1988.

Publisher : Marcel Dekker, Inc

Book

Year : 2015

Probability and Random Processes

Publisher : New Delhi: IK International

Year : 2010

Probability and Statistics for Engineers

Cite this Research Publication : Dr. Ravichandran J., Probability and Statistics for Engineers. Wiley India , 2010.

Publisher : Wiley India

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