Areas of Current Research Interest:

• Queueing Theory
• Distribution Theory
• Statistical Computing
• Finite Mixture Models and Their Applications
• Bayesian Inference.
• Multilevel Models.
• Phase Type Distribution and its Applications in Reliability Theory and Queueing Theory

Contributions to Teaching:

• Assistant Professor, Department Of Statistics, St. Joseph's College Devagiri, Kozhikode. (24-01-2001 to 15-12-2015 , 15 Years)
• Associate Professor, Department of Statistical Sciences, Kannur University, Kannur. (24-01-2015 onwards )

Details of research Scholars and Topics

1. Thomas Xavier. Topic- Some contributions in Generalized Statistical Models and their Applications in Reliability.
2. Drisya M. Topic- Some contributions to the Estimation of Stress-Strength Reliability Models.
3. Deepthi V. Topic- Bayesian Inference on the Steady State Characteristics of Some Advance Queueing Models.
4. Krishnendu K. Topic- Some Contributions on Mixture Probability Models and their Applications.
5. Jeswin Baby.. Topic- Some Contributions to Bayesian Inference on Mixture and Multilevel Models.

Details of research projects

1. Interdisciplinary Research Project- “Quality Of Life, Physical Fitness and Health Status Profiling, Development of E-Portal to follow Physical Fitness and Health Status of Kannur University Students” PI- 1. Dr Anil Ramachandran, Associate Professor, School of Physical Education and Sports Science, PI- 2. Dr Joby K Jose, Associate Professor, Department of Statistical Sciences. Amount: Rs.9,86,000.

1. M. Drisya and Joby K. Jose. Stress-Strength Reliability Estimation of Time Dependent Models with Fixed Stress and Phase Type Strength Distribution. Revista Colombiana de Estadística. (Accepted) 2020.
2. M. Drisya and Joby K. Jose. Time-Dependent Stress-Strength Reliability Models with Phase-Type Cycle Times. Stochastics and Quality Control. (Accepted) 2020.
3. Deepthi V and Joby K Jose. Bayesian estimation of an M/M/R queue with heterogeneous servers using Markov Chain Monte Carlo method. Stochastics and Quality Control. (Accepted) 2020.
4. Thomas Xavier and Joby K. Jose. Stress-Strength Reliability Estimation involving Paired Observation with Ties Using Bivariate Exponentiated Half-Logistic Model. Journal of Applied Statistics. DOI: 10.1080/02664763.2020.1849054 , 2020.
5. Deepthi V and Joby K Jose. Bayesian Estimation of M/Ek/1 Queueing Model Using Bivariate Prior. American Journal of Mathematical and Management Sciences. (Accepted) 2020. DOI:10.1080/01966324.2020.1835589.
6. Deepthi V and Joby K Jose. Bayesian Inference On M/M/1 Queue Under Asymmetric Loss Function Using Markov Chain Monte Carlo Method. Journal of Statistics & Management Systems. (Accepted) 2020.
7. Thomas Xavier and Joby K. Jose. Estimation of reliability in a multicomponent stress-strength model based on power transformed half-logistic distribution. International Journal of Reliability, Quality and Safety Engineering. https://doi.org/10.1142/S0218539321500091, 2020.
8. Joby K. Jose and Drisya M. Time-Dependent Stress-Strength Reliability Models based on Phase Type Distribution. Computational Statistics. DOI:10.1007/s00180-020-00991-3, 2020.
9. Joby K. Jose, Drisya M. and Manoharan M. Estimation of stress-strength reliability using discrete phase type distribution. Communications in Statistics-Theory And Methods DOI:10.1080/03610926.2020.1749663, 2020.
10. Thomas Xavier and Joby K. Jose. A study of stress-strength reliability using a generalization of power transformed half-logistic distribution. Communications in Statistics-Theory And Methods. DOI: 10.1080/03610926.2020.1716250, 2020.
11. Joby K Jose and Deepthi V. Bayesian Inference of Markovian Queueing Model with Two Heterogeneous Servers. Stochastic Modeling and Applications vol.24.(.1),1-14 2020.
12. Joby K Jose, Thomas Xavier. And Drisya M. Estimation of Stress- Strength Reliability using Kumaraswamy Half-Logistic Distribution. Journal of Probability and Statistical Science 17(2), 141-154, 2019.
13. Joby K Jose and M. Manoharan. Bayesian Estimation of Queue Parameters by Bivariate Prior Distributions with Order Restriction. Journal of Indian Statistical Association Vol.56, No. 1 & 2, 29-46, 2018.
14. Joby K Jose and M. Manoharan. Infinite divisibility of some steady state Queue Characteristics. Journal of Indian Society of Probability & Statistics 18(2),215-221 2017.
15. Joby K Jose. and M. Manoharan. Beta half logistic distribution-A new probability model for life time data. Journal of Statistics & Management Systems 19(4),587-604 2016.
16. Joby K Jose and M. Manoharan. Bayesian Estimation of Rate Parameters of Queueing Models. Journal of Probability and Statistical Science 12(1), 69-76, 2014.
17. Joby K Jose and M. Manoharan. Optimum System Capacity for Markovian Queueing System with an Adaptive Balking. Journal of Statistics & Management Systems Vol.17(2),155-164, 2014.
18. Joby K Jose and M. Manoharan. Some Properties of the Steady State Characteristics of Discrete Time Queueing Models. Journal of Statistics: Advances in Theory and Applications, Vol.10-2,189-197,2013
19. M. Manoharan and Joby K. Jose. Markovian queueing system with random balking, Opsearch. Vol. 48(3), 2011, pp. 236–246.
20. Joby K Jose and M Manoharan, On Infinite Divisibility of Steady State Distributions in some Queueing Models, Journal of Indian Statistical Association. Vol 48-2,231-241, 2010

Research Papers – Book Chapter

1. Krishnendu K., Drisya M. and Joby K Jose. Estimation of stress-strength reliability function using Weibull distribution. Proceedings of National Seminar in Applied Statistics and Symposium on Stochastic Modelling. February 4 – 6, 2020, St. Thomas College, Thrissur, Kerala, India.
2. Deepthi V. and Joby K. Jose. Bayesian Estimation of Markovian Queueing Models. Proceedings of the National Conference on Advances in Statistical Methods, NCASM-2018, November 8 – 10, 2018, Kannur University, Kerala, India.
3. Drisya M. and Joby K. Jose. Stress Strength Reliability Estimation of Dynamic Models using Phase Type Distribution. Proceedings of the National Conference on Advances in Statistical Methods, NCASM-2018, November 8 – 10, 2018, Kannur University, Kerala, India.
4. Thomas Xavier and Joby K. Jose. A generalization of power transformed half-logistic distribution and its properties. Proceedings of the National Conference on Advances in Statistical Methods, NCASM-2018, November 8 – 10, 2018, Kannur University, Kerala, India.
5. Joby K Jose and M. Manoharan. Some New Results on Discreate Time Queues. Proceedings of the National Conference on Statistics for Twenty-first Century, March 17-19, 2012, Kerala University, Kerala, India.
6. Joby K Jose and M. Manoharan. Identification of Some Queueing Systems via Infinite Divisibility. Proceedings of the International Conference on Mathematical Sciences., January 3-5,2011, St. Thomas College Pala, Kerala, India.

Books Authored/Edited

1. Joby K Jose and Thomas Xavier (2019). Proceedings of the National Conference on Advances in Statistical Methods. Akademia Publications, Calicut, Kerala, India. ISBN: 978-81-922109-7-1.