3 papers
math.ST2026
Maximum entropy based testing in network models: ERGMs and constrained optimization
Subhro Ghosh, Rathindra Nath Karmakar, Samriddha Lahiry
Stochastic network models play a central role across a wide range of scientific disciplines, and questions of statistical inference arise naturally in this context. In this paper w…
math.OC2026
Dictionary Learning under Symmetries via Group Representations
Subhroshekhar Ghosh, Aaron Y. R. Low, Yong Sheng Soh +2
The dictionary learning problem can be viewed as a data-driven process to learn a suitable transformation so that data is sparsely represented directly from example data. In this p…
math.PR2025
Gaussian fluctuations for spin systems and point processes: near-optimal rates via quantitative Marcinkiewicz's theorem
Tien-Cuong Dinh, Subhroshekhar Ghosh, Hoang-Son Tran +1
We establish asymptotically Gaussian fluctuations for functionals of a large class of spin models and strongly correlated random point fields, achieving near-optimal rates. For spi…