VAIDYANATHAN V.S. Associate Professor

Profile Picture

  • Department of Statistics
  • Ramanujan School of Mathematical Sciences
  • vaidya_vs@yahoo.com,vaidya.stats@gmail.com

Academic Activity

Academic Activity Picture1

Academic Activity Picture2

Educational Qualification (UG,PG & Higher Order)

S.No Degree Subject/Title of thesis University/Board Year of Passing
1 Ph.D. Statistics University of Madras 2011
2 M.Phil. Statistics University of Madras 1999
3 M.Sc. Statistics University of Madras 1997
4 B.Sc. Statistics University of Madras 1995

Area of Specializaion

Distribution theory and inference, Data Mining Methods, Directional Statistics

Awards / Prizes Conferred

S.No Name / Title of the Award Type Name of the Agency conferred the Award Year of the Award Amount for Cash Award
1 Best Teacher Award REGIONAL Pondicherry University 2022 ---
2 Best Teacher Award REGIONAL Pondicherry University 2014 ---
3 Best Teacher Award REGIONAL Pondicherry University 2013 ---

Teaching Experience

S.No Designation Department/Centre Institution
1 Lecturer (Management Staff) Statistics Loyola College, Chennai
2 Lecturer (Management Staff) Statistics Loyola College, Chennai
3 Assistant Professor Statistics Pondicherry University
4 Associate Professor Statistics Pondicherry University

Research Experience

S.No Designation Department/Centre Institution Area of Research
1 Associate Professor Statistics Pondicherry University Distribution Theory and Inference, Directional data, Data Mining methods

Industry Experience

S.No Designation Company/Corporate Nature of Work

Contribution towards Innovation

S.No Name of the Work/Contribution Specialization Remarks

Patent Details

S.No Title Status Patent Number Year of Award Type Commercialized Status

Papers Published in UGC Approved Journals

S.No Title Name of the Authors as per the order in Paper Journal Name Volume, Issue & Page Nos. Year Impact Factor
1 Conway-Maxwell Poisson Distribution: Some new results and minimum variance unbiased estimation Jahnavi Merupula and Vaidyanathan, V.S. Statistics and Applications Accepted for Publication 2022 NA
2 Inferential aspects of a three unit hot standby system with dependent structure Vaidyanathan, V.S. and Chandrasekhar, P. IAPQR Transactions 43, 1, 47-59 2018 NA
3 Three parameter gamma distribution – Estimation using likelihood, spacings and least squares approach Vani Lakshmi, R. and Vaidyanathan, V.S. Journal of Statistics and Management Systems 19, 1, 37-53 2016 NA
4 Mann-Whitney test for imprecise observations Vaidyanathan, V.S. Research and Reviews: Journal of Statistics 3, 2, 18-22 2014 NA
5 Statistical analysis of a two service point tandem queue with varying service rate Paul Savariappan, Vaidyanathan, V.S. and Chandrasekhar, P. IAPQR Transactions 39, 1, 55-71 2014 NA
6 Job sequencing with fuzzy processing times using Credibility Theory Vaidyanathan, V.S. Research and Reviews: Journal of Statistics 2, 1, 14-19 2013 NA
7 Measures of location for imprecise data Vaidyanathan, V.S. Research and Reviews: Journal of Statistics 2, 3, 35-40 2013 NA
8 Hierarchical Clustering of imprecise data Vaidyanathan, V.S. International Journal of Data Mining and Emerging Technologies 2, 2, 54-59 2012 NA

Papers Published in Non UGC Approved Peer Reviewed Journals

S.No Title Name of the Authors as per the order in Paper Journal Name Volume, Issue & Page Nos. Year Impact Factor
1 Bayesian Inference and UMVU estimation in the single server M|M|1|∞ queue Vaidyanathan, V.S., Naveen K. Bansal and Chandrasekhar, P Journal of the Indian Society for Probability and Statistics 23, 211-226. 2022 NA
2 Bayesian Analysis of an M|M|1|infinity queueing model Bansal, Naveen K., Vaidyanathan, V.S. and Chandrasekhar, P. Pakistan Journal of Statistics and Operation Research 18, 1, 85-97 2022 NA
3 Classical and Bayes estimation in the M/D/1 queueing system Chandrasekhar, P., Vaidyanathan, V.S., Durairajan, T.M. and Yadavalli, V.S.S. Communications in Statistics - Theory and Methods 50, 22, 5411-5421 2021 0.612
4 Parameter estimation of Lindley step stress model with independent competing risk under type I censoring Sharon Varghese, A. and Vaidyanathan, V.S. Communications in Statistics - Theory and Methods 49, 12, 3026-3043 2020 0.612
5 Discriminating between Exponential and Lindley distributions Vaidyanathan, V.S. and Sharon Varghese, A. Journal of Statistical Theory and Applications 18, 3, 295-302 2019 NA
6 Parametric Estimation of an M/Er/1 queue Vaidyanathan, V.S. and Chandrasekhar, P. OPSEARCH 55, 3, 628-641 2018 NA
7 Applications of quadrivariate exponential distribution to a three-unit warm standby system with dependent structure Yadavalli, V.S.S., Vaidyanathan, V. S., Chandrasekhar, P. and Abbas, S. Communications in Statistics – Theory and Methods 46, 14, 6782-6790 2017 0.612
8 Estimation of parameters in a finite mixture of multivariate gamma distributions using Gaussian approximation Vaidyanathan, V.S. and Vani Lakshmi, R. Sri Lankan Journal of Applied Statistics 17, 3, 187–200 2016 NA
9 Analysis of simple step stress Accelerated Life Test data from Lindley distribution under Type-1 censoring Sharon Varghese, A. and Vaidyanathan, V.S. STATISTICA anno LXXVI, 3, 233-248 2016 NA
10 Morgenstern type bivariate Lindley distribution Vaidyanathan, V.S. and Sharon Varghese, A. Statistics, Optimization and Information Computing 4, 2, 132-146 2016 NA
11 Parameter Estimation in Gamma Mixture Model using Normal-based Approximation Vani Lakshmi, R. and Vaidyanathan, V.S. Journal of Statistical Theory and Applications 15, 1, 25-35 2016 NA
12 Parameter Estimation in Multivariate Gamma Distribution Vaidyanathan, V.S. and Vani Lakshmi, R. Statistics, Optimization and Information Computing 3, 2, 147-159 2015 NA
13 Applications of quadrivariate exponential distribution to a three service point tandem queue Vaidyanathan, V.S., Yadavalli, V.S.S., Chandrasekhar, P. and Xavier, S. South African Statistics Journal Vol. 48, pp 267-277 2014 NA
14 Statistical Inference for a Two Unit warm standby system with dependent structure Chandrasekhar, P., Vaidyanathan, V.S., Yadavalli, V.S.S. and Xavier, S. OPSEARCH 50, 3, 372-382 2013 NA
15 Statistical Analysis of tandem queues with blocking Paul Savariappan, Chandrasekhar, P., Selvam, S. and Vaidyanathan, V.S Calcutta Statistical Association Bulletin 64,No.255-256,241-255 2012 NA
16 Statistical Inference for a Two station tandem queue with atmost one customer to wait between the stations Chandrasekhar, P. and Vaidyanathan, V.S. Pakistan Journal of Statistics and Operations Research 8, 2, 185-194 2012 NA

Papers Published in Conference Proceedings

S.No Title Name of the Authors as per the order in Paper Details of Conference Publication Page Nos. Year
1 One-inflated Intervened Poisson distribution: Stochastic Representations and Estimation Vaidyanathan. V.S. and Jahnavi Merupula Special Proceedings 24th Annual Conference of SSCA, ICAR - NAARM, Hyderabad, India, February 23-27, 2022 85-92 2022
2 Benini Distribution: A less known income-size distribution Vaidyanathan, V.S. Special Proceedings 23rd Annual Conference of SSCA , ICAR - NAARM, Hyderabad, India, February 24-28, 2021 93-99 2021
3 Statistical Inference for a one unit system with dependent structure Vaidyanathan, V.S. Special Proceedings 22nd Annual Conference of SSCA , Savitribhai Phule Pune University, Pune, India, January 02-04, 2020 53-58 2020
4 Reliability analysis of a standby system with two stage Erlangian repair Yadavalli, V.S.S., Abbas, S, Vaidyanathan, V. S. and Chandrasekhar, P. Proceedings of the International Conference on Industrial Engineering and Operations Management, Pretoria / Johannesburg, South Africa, October 29 – November 1, 2018, IEOM Society International 1-7 2018
5 On the use of Least Squares, Likelihood and Spacings in estimating the parameters of Generalized Gamma distribution Vani Lakshmi, R. and Vaidyanathan, V.S. In: Statistical Modelling and Analysis Techniques, Proceedings of the National Conference on Emerging Trends in Statistical Research - Issues and Challenges held in the Department of Statistics, Pondicherry University, India 83-92 2016
6 Generating samples from Bivariate distributions using Gibbs sampling Vaidyanathan, V.S. In: Applications of Reliability Theory and Survival Analysis, Proceedings of the National Conference on Recent Developments in the Application of Reliability Theory and Survival Analysis held in the Department of Statistics, Pondicherry University, India 145-148 2012
7 Lorentz curve based on Fuzzy Logic Sudesh Pundir and Vaidyanathan, V.S. In: Applications of Reliability Theory and Survival Analysis, Proceedings of the National Conference on Recent Developments in the Application of Reliability Theory and Survival Analysis held in the Department of Statistics, Pondicherry University, India 189-195 2012

Books

S.No Title of the Book Name of the Authors as per the order in Book Publisher Year ISBN No.

Chapters in Books

S.No Title of the Chapters Name of the Authors Title of the Book Publisher Year ISBN No.
1 Record Values and Associated Inference on Muth Distribution Vaidyanathan, V.S. and Bakouch, H. Applied Statistical Methods, Springer Proceedings in Mathematics & Statistics, Vol. 380 Springer 2022 978-981-16-7931-5

Edited Books

S.No Title of the Book Name of the Authors as per the order in Book Publisher Year ISBN No.
1 Statistical Modelling and Analysis Techniques Kiruthika, R. Vishnu Vardhan, V.S.Vaidyanathan Narosa Publishing House Pvt. Ltd., New Delhi 2016 978-81-8487-558-4

Ongoing Projects

S.No Title of the Project Sponsored By Period Sanctioned Amount(Rs. Lakh) Year
1 Data Mining methods for Directional Data DST-SERB (MATRICS scheme) 2022-2025 Rs.6,60,000/- 2022

Ongoing Consultancy Works

S.No Title of the Consultancy Work Sponsored By Period Sanctioned Amount(Rs. Lakh) Year

Completed Projects

S.No Title of the Project Sponsored By Period Sanctioned Amount(Rs. Lakh) Year
1 Statistical Methods for imprecise data University Grants Commission 2012 - 2014 Rs.1,35,000/- 2014

Completed Consultancy Works

S.No Title of the Consultancy Work Sponsored By Period Sanctioned Amount(Rs. Lakh) Year

Career Guidance Offered to students

S.No Name of the Scheme No. of Students Competitive Examinations/ Career Counseling No. of Students Passed No. of Students Placed

List of capability enhancement such as Soft skill development, Remedial coaching, Language lab,
Bridge courses, Yoga, Meditation, Personal Counselling and Mentoring etc.,

S.No Name of the Programme/Scheme Date of Implementation No. of Students Enrolled Agencies Involved

Research Guidance - PG

S.No Year Degree No. of Students Awarded Department/Centre
1 2022 M.SC 02 Statistics
2 2021 M.SC 02 Statistics
3 2020 M.SC 01 Statistics
4 2019 M.SC 04 Statistics
5 2018 M.SC 06 Statistics
6 2017 M.SC 05 Statistics
7 2016 M.SC 04 Statistics
8 2015 M.SC 05 Statistics
9 2014 M.SC 04 Statistics
10 2013 M.SC 04 Statistics
11 2012 M.SC 04 Statistics
12 2011 M.SC 02 Statistics

Research Guidance - Ph.D

S.No Student Name Registration Date Registration No. Thesis Title Thesis Submitted Status Thesis Submitted Date Vivavoce Completed Status Date Awarded
1 Sharon Varghese, A. 08-09-2014 1400149003 Lindley distribution and its applications in Accelerated Life Testing models YES 28-11-2018 YES 02-05-2019
2 Vani Lakshmi, R. 29-08-2012 On estimation of parameters of Gamma Models through Heuristic procedures YES 06-05-2016 YES 22-12-2016

Research Guidance - Post Doctoral

S.No Scholar Name Designation Funding Agency Fellowship Title Year of Joining Year of Completion

Financial assistance availed to attend conferences / workshops and to pay membership fee
of professional bodies during the year

S.No Conference/ workshop attended for which financial support provided Professional body for which membership fee is provided Amount of Support Place From Date To Date Year

E-Lecture Details

S.No E-Lecture Title Development of e-content/e-learning/delivering Member of Editorial Bodies Reviewer/Referee of
Content/Module Title Institution/Platform Year Weblink

Details of Online Education Conducted

S.No Nature of Online Course No. of Sessions Target Group Date

Invited Talks in Conference/Seminar/Workshop/Training Programme

S.No Title of the Paper Conferences/Seminar/Workshop/Training Programme Organized by Whether International / National / State / Regional / College or University Level From To Year
1 Divergence measures for mixtures of von-Mises distributions International Conference on Statistics, Probability, Data Science and related areas Cochin University of Science and Technology, India International 04-01-2023 06-01-2023 2023
2 Distance measures for Directional Data - A brief review with application to clustering Satellite symposia on Mathematical - Computational Sciences Bharathiar University Regional 15.09.2022 15.09.2022 2022
3 Distance measures for Directional Data - A brief review with application to clustering Satellite symposia on Mathematical - Computational Sciences Bharathiar University Regional 15.09.2022 15.09.2022 2022
4 Classification and Decision Trees in Python Trining Programme on Statistical Sciences and its Applications using Python Department of Statistics, Bharathiar University National 04.08.2022 04.08.2022 2022
5 Modelling dispersed count data using two-parameter Poisson distribution 24rd Annual Conference of SSCA on Recent Advances in Statistical Theory and Applications National Academy of Agricultural Research Management (ICAR-NAARM), Hyderabad National 23.02.2022 27.02.2022 2022
6 Some Less known Income-Size distributions 23rd Annual Conference of SSCA on Visionary Innovations in Statistical Theory and Applications National Academy of Agricultural Research Management (ICAR-NAARM), Hyderabad National 24.02.2021 28.02.2021 2021
7 Cluster Analysis Guest Lecture Series Programme Department of Statistics, Bharathiar University, Coimbatore University Level 28.03.2021 29.03.2021 2021
8 Estimation of the error probabilities in the classification of univariate gamma populations Emerging Trends in Statistics and Data Science Department of Statistics, Cochin University of Science and Technology International 07.09.2021 10.07.2021 2021
9 Decision Trees and Regression Techniques for Classification National Virtual Workshop on Data Science and Machine Learning Department of Statistics, Pondicherry University, Puducherry, India National 29-06-2020 30-06-2020 2020
10 Multiple Regression Analysis National Workshop on Research Methods and Data Analysis Center for Applied Research, Gandhigram Rural Institute (Deemed to be University), Gandhigram, India National 27-01-202 30-01-2020 2020
11 Inferential aspects of a three unit hot standby system with dependent structure International Conference on Importance of Statistics in Global Emerging Scenario Department of Statistics Savitribai Phule Pune University, Pune, India International 02-01-2020 04-01-2020 2020
12 R Programming Mathematics Training for Undergraduate Statistics Students - Programme KBN Autonomous College, Vijaywada and Funded by NBHM National 02-12-2019 15-12-2019 2019
13 Inflated Models: Representation and Inference National Conference on Trends in Statistics and Applications Department of Statistics, Government Arts College, Coimbatore, India National 25-02-2019 25-02-2019 2019
14 Statistical Modelling using R One Week Training Programme on Concepts and applications of Statistical Quality Control – using Phyton Pandas, R, Matlab, Power BI and Networking M Sathyabama Institute of Science and Technology, Chennai, India University Level 05-02-2019 09-02-2019 2019
15 An alternate way to estimate the parameters of Gamma mixture models National Conference on Challenges and Opportunities in Statistics and Informatics for Futuristic Humanosphere Especially in Agriculture Department of Statistics and Computer Applications, Acharya N.G.Ranga Agricultural University,Guntur National 29-01-2019 31-01-2019 2019
16 Properties and Applications of some discrete and continuous probability models Seminar on Probability and Distribution Theory Shri Sakthi Kailassh Womens College, Salem, India College level 16-07-2018 16-07-2018 2018
17 Modelling dependent Random Variables through Marginals Conference on Recent Trends in Application of Mathematics and Statistics Department of Mathematics and Statistics, S.S.Shasun Jain College for Women, Chennai, India National 20-01-2018 20-01-2018 2018
18 Simultaneous Clustering and Feature selection IISA conference on Statistics and Data Science for better Life, Society and Science International Indian Statistical Association held at Hyderabad, India International 27-12-2017 30-12-2017 2017
19 R Programming Refresher Course in Computer Science Human Resource Development Center, Pondicherry University, Puducherry, India National 03-11-2017 23-11-2017 2017
20 Quantitative and Qualitative Measures in Data Analysis Short term course on Data Analysis using Software Human Resource Development Center, Pondicherry University, Puducherry, India National 03-10-2016 08-10-2016 2016
21 Sampling Methods and Questionnaire design Workshop on Introduction to Research, Parametric and Non-Parametric, Regression, Classification and SEM Department of Commerce, Pondicherry University, Puducherry, India National 17-10-2016 23-10-2016 2016
22 Statistics using R Programming Seminar on Different aspects of Reliability Theory and Data Mining Department of Statistics, Bharathiar University, Coimbatore, India University Level 04-02-2016 05-02-2016 2016
23 Data Mining Techniques Seminar on Different aspects of Reliability Theory and Data Mining Department of Statistics, Bharathiar University, Coimbatore, India University Level 04-02-2016 05-02-2016 2016
24 Sampling Methods Workshop on Statistical Applications and uses of SPSS in Research Center for Applied Research, Gandhigram Rural Institute - Deemed University, Gandhigram, India National 23-03-2015 27-03-2015 2015
25 Cluster analysis using SPSS Seminar on Data Analysis Center for Quantitative Analysis, University of Kerala, Thiruvananthapuram, India National 13-02-2014 14-02-2014 2014
26 Instance based Classifiers Conference on Statistics and Information Analytics Department of Statistics, Loyola College, Chennai, India International 23-08-2012 25-08-2012 2012

Conferences/Seminars Organized

S.No Title of the Programme Sponsors Venue & Duration Whether International / National / State / Regional / College or University Level From To Year
1 Emerging Trends in Statistical Research: Issues and Challenges Pondicherry University; CSIR Department of Statistics, Pondicherry University; 2 days National 16-02-2015 17-02-2017 2017
2 Conference of the International Biometric Society on Computational Statistics and Bio Sciences Pondicherry University; MOSPI;ICMR Department of Statistics, Pondicherry University; 2 days International 08-03-2012 09-03-2012 2012

Workshop Organized

S.No Title of the Programme Sponsors Venue & Duration Whether International / National / State / Regional / College or University Level From To Year
1 National Workshop on Simulation Techniques and Resampling Procedures Pondicherry University; CSIR Department of Statistics, Pondicherry University; 3 days National 11-12-2013 13-12-2013 2013

Administrative Responsibilities in the Government and Quasi Government Agencies

S.No Name of the Position Agency/Organisation Duration Nature of Duties

Affiliation in Academic Bodies/Societies

S.No Name of the Body/Society Nature of Affiliation Year
1 Calcutta Statistical Association Life time member 2014
2 International Indian Statistical Association Life time member 2014
3 Indian Society for Probability and Statistics Life time member 2010

Participation & Extension Activities (Academic/Administraion)

S.No Name of the Position (Head, Dean, Co-ordinator, Director, etc.,) Duration Nature of Dutites
1 Member - Board of Studies in Statistics, Pondicherry University 3 years Preparation / Updation of syllabus of M.Sc. Statistics programme
2 Member, School Board, RSMS 3 years Syllabus upgradation and review for the departments attached with RSMS
3 Deputy Nodal Officer (University Rankings) 1 year (2021-22) Coordinating with IQAC cell for data collection, preparation and submission to NIRF, Times Ranking
4 Member, Academic Quality Assurance Report committee 1 year (2022-23) Coordinating with IQAC cell for data collection and submission to NAAC

Participation & Extension Activities (Co-Curricular)

S.No Name of the Position (NSS, NCC, Warden etc.,) Duration Nature of Dutites
1 Student Coordinator 2013 - 2017 Organize orientation program, industrial visit for students
2 Alumni coordinator since 2017 Create alumni database of the department and organize alumni meet
3 Coordinator- Industry Institute Interface program of the department since 2017 To organize industry interface meet for the students
4 Coordinator- placement cell of the department since 2022 To arrange internship and placements for the students

Collaboration with Institution/Industry

S.No Collaborator Name Designation Institution/Industry Type Nature of Collaboration Period of Collaboration Visits to Collaborating
Institution / Industry
Details of Collaborative Research/Teaching
From Date To Date From Date To Date

Faculty Development Programme Attended (Orientation, Refresher, other Short Term Course during the year)

S.No Title of the FDP Organiser Venue Duration From Date To Date Year
1 Faculty Development Workshop on Enhancing ICT skills of Educators for Blended and Online Teaching Ramanujan School of Mathematical Sciences, Pondicherry University Pondicherry University (online mode) 21 days 21.07.2020 01.08.2020 2020
2 National Level Short Term Course on SciLab, LaTex and R Programming Department of Mathematics, Pondicherry University Pondicherry University One week 23.07.2018 29.07.2018 2018
3 National Workshop on Computational Statistics Indian Statistical Institute Kolkata 0ne week 22.02.2016 26.02.2016 2016
4 Refresher Course in Statistics Academic Staff College, Bharathiar University Bharathiar University 21 days 06.11.2014 26.11.2014 2014
5 Refresher Course in Statistics Academic Staff College, University of Kolkata University of Kolkata 21 days 02-07-2012 21-07-2012 2012
6 Orientation Program Academic Staff College, Pondicherry University Pondicherry University 28 days 16-02-2011 15-03-2011 2011

Details of Executive Development Prog/Management Development Prog. conducted

S.No Name of the Programme No. of Participants Venue Duration From Date To Date Year Revenue Generated

Participation in IMPESS, IMPRINT, SPARC, STARS, LEAP Programme etc and DSF Funding Programme

S.No IMPRESS/IMPRINT/SPARC/STARS/LEAP/Others Place From Date To Date Year

Enrolment under ARPIT Programme

S.No Name of the Programme Period of the Programme
From Date To Date