# Dr. Shyamsundar Sahoo

Name |
Dr. Shyamsundar Sahoo |

Designation |
Assistant Professor |

Department |
Statistics |

Highest Degree |
Ph.D. |

Teaching Area |
Probability Theory and Distributions, Statistical Inference. |

__Teaching Experiences__

**Courses currently teaching:**

Probability Theory and Distributions, Statistical Inference.

**Courses Taught**

- Probability Theory and Distributions, Mathematical Analysis, Regression Modeling,Sampling Distributions, Statistical Inference, Sample Survey and Demography

to UG students. - Biostatistics to PG students of the Department of Microbiology, Vidyasagar University.
- SAS programming for statistical data analysis in the Workshop on Statistical Aspects of Advanced Measurement Modeling for the Officers of the Reserve Bank

of India, conducted by the Indian Statistical Institute, Kolkata, December 10–14, 2012.

__Programming Languages__

C, SAS and R

__Research Interests__

Survival Analysis, Regression Modeling, Non-Parametric and Semi-Parametric Inference, Graphical Methods.

__Peer Reviewed Publications__

- Sahoo, S. and Sengupta, D. (2017). Testing the hypothesis of increasing hazard ratio in two samples. Computational Statistics & Data Analysis, 114 : 119–129.
- Sahoo, S. and Sengupta, D. (2016). On graphical tests for proportionality of hazards in two samples. Statistics in Medicine, 35 : 942–956.
- Sahoo, S. and Sengupta, D. (2011). Some diagnostic plots and corrective adjustments for the proportional hazards regression model. Journal of Computational

and Graphical Statistics, 20 : 375–394.

__Working Research Papers__

- On Graphical Methods for Distributional Difference between Two Populations
- Checking the PH Assumption in Cox’s Semi-parametric Regression Model by Andersen plot: A Calibration Procedure
- Graphical Test for Linear Model Assumption in Univariate Multi-Sample Case

__Research Projects__

UGC-Sponsored Minor Research Project (2012–2014)

Title: Calibration of Some Diagnostic Plots for Checking the PH Assumption

in Cox’s Semi-parametric Regression Model.

__Journal Reviewer__

Statistics in Medicine

__Professional Affiliations__

- Life member of Indian Statistical Institute
- Life member of Indian Statistical Association
- Life member of Calcutta Statistical Association

__Seminars Presented__

- On “Testing whether hazard rate of a sample has increasing ratio with hazard rate of another sample” in the Eighth International Triennial Calcutta Symposium on Probability and Statistics, Department of Statistics, University of Calcutta, December 27-30, 2012.
- On “Survival Analysis in Clinical Trials” in One-Day Seminar on An Overview of Clinical Research: Career Opportunities in Biostatistics & SAS Programming,

Department of Statistics, Haldia Government College, October 31, 2014. - On “Graphical tests for proportionality of hazards in two samples” in the International Conference on Celebrating Statistical Innovation and Impact in a World of Big & Small Data, Department of Statistics, University of Pune, December 20-24, 2015 (As an Invited Speaker).
- On “Methods for Checking Distributional or Model Assumptions in Statistical Inference” in State sponsored One-Day Seminar on Social Sector Statistics– Special Emphasis on Agricultural Statistics, Bureau of Applied Economics and Statistics (Tamluk Division), Government of West Bengal, June 29, 2016 (As an Invited Speaker).
- On “Checking the PH assumption in Cox regression model by Andersen plot:

Calibration Procedure” in UGC Sponsored Two-Day National Seminar on Uses of Statistics in the Analysis of Socio-Economic Development: Contemporary Issues in India, Department of Economics and Statistics, Midnapore College (Autonomous), November 7-8, 2016. - On “Graphical Methods for Comparison of Two Populations” in the Platinum Jubilee International Conference on Applications of Statistics, Department of Statistics, University of Calcutta, December 21-23, 2016.
- On “Graphico-Analytical Methods for Exploratory Data Analysis” in State sponsored One-Day Seminar on Data analytics and uncertainty to decision making, Bureau of Applied Economics and Statistics (Tamluk Division), Government of West Bengal, June 29, 2017 (As an Invited Speaker).