Robust Statistics
Exploratory Data Analysis
Spatio-temporal data analysis
Neural networks
Natural Language Processing
Below, you'll find a list of my publications, conference talks, etc.
A more updated list is available on my Google Scholar page.
Roy, Subhrajyoty, Ayanendranath Basu, and Abhik Ghosh. Robust Principal Component Analysis using Density Power Divergence. Journal of Machine Learning Research 25, no. 324 (2024): 1-40. Link | Open Access Link
Roy, Subhrajyoty, Abhik Ghosh, and Ayanendranath Basu. "Robust singular value decomposition with application to video surveillance background modelling" Statistics and Computing 34, no. 5 (2024): 178. Link | Open Access Link
Pyne, Arijit, Subhrajyoty Roy, Abhik Ghosh, and Ayanendranath Basu. "Robust and efficient estimation in ordinal response models using the density power divergence." Statistics 58, no. 3 (2024): 481-520. Link | Open Access Link
Bhaduri, Ritwik, Subhrajyoty Roy, and Sankar K. Pal. "Rough-Fuzzy CPD: a gradual change point detection algorithm." Journal of Data, Information and Management 4, no. 3 (2022): 243-266. Link | Open Access Link
Ghatak, Anirban, Shivshanker Singh Patel, Soham Bonnerjee, and Subhrajyoty Roy. "A generalized epidemiological model with dynamic and asymptomatic population." Statistical Methods in Medical Research 31, no. 11 (2022): 2137-2163. Link | Open Access Link
Roy, Subhrajyoty, Debasis Sengupta, Kalyan Rudra, and Udit Surya Saha. Analysis of Pollution Patterns in Regions of Kolkata. Calcutta Statistical Association Bulletin 72, no. 2 (2020): 133-170. Link
Mukherjee, Diganta, Dalal, Abhinandan, and Subhrajyoty Roy. Feasibility of Transparent Price Discovery in Tea through Auction in India. Commodity Insights Yearbook MCX (2019): 44-52. Link | Open Access Link
Deb, Soudeep, Claudia Neves, and Subhrajyoty Roy. "Nonparametric quantile regression for spatio-temporal processes." arXiv preprint arXiv:2405.13783 (2024). Link
Roy, Subhrajyoty. "Trustworthy Dimensionality Reduction." arXiv preprint arXiv:2405.05868 (2024). Link
Roy, Subhrajyoty, Abir Sarkar, Abhik Ghosh, and Ayanendranath Basu. "Asymptotic Breakdown Point Analysis for a General Class of Minimum Divergence Estimators." arXiv preprint arXiv:2304.07466 (2023). Link
Dalal, Abhinandan, Diganta Mukherjee, and Subhrajyoty Roy. "The Information Content of Taster's Valuation in Tea Auctions of India." arXiv preprint arXiv:2005.02814 (2020). Link
Bhaduri, Ritwik, Soham Bonnerjee, and Subhrajyoty Roy. "Onset detection: A new approach to QBH system." arXiv preprint arXiv:1908.07409 (2019). Link
Robust Principal Component Analysis using Density Power Divergence. Nominated for Best Paper Competition at IISA Conference (2024) hosted by Cochin University of Science and Technology. Slide deck.
Robust Matrix Factorization using Density Power Divergence and its Applications. Public lecture (2024) on doctoral research at Indian Statistical Institute, Kolkata. Slide deck.
A novel and scalable background modelling algorithm from video surveillance data. Contributory Talk at IMS Asia Pacific Rim Meeting (2024), organized by the University of Melbourne. Slide deck.
A review of Robust Location and Scatter estimators. Guest Lecture in Robust Statistics Course (M.Stat.'22 & M.Stat.'24) at Indian Statistical Institute, Kolkata. Slide deck.
Algorithmic Fairness of Statistical Decision Systems. Prasanta Chandra Mahalanobis memorial lecture, 2021 at Indian Statistical Institute, Kolkata. Slide deck.
Visualizing multivariate data using tSNE. D. Basu memorial lecture, 2019 at Indian Statistical Institute, Kolkata. Slide deck.
Foreground extraction and background modelling of video surveillance data based on the method of Robust Singular Value Decomposition using Density Power Divergence - Link.