Search Results for author: Subhajit Goswami

Found 5 papers, 0 papers with code

Spatially Adaptive Online Prediction of Piecewise Regular Functions

no code implementations30 Mar 2022 Sabyasachi Chatterjee, Subhajit Goswami

We consider the problem of estimating piecewise regular functions in an online setting, i. e., the data arrive sequentially and at any round our task is to predict the value of the true function at the next revealed point using the available data from past predictions.

On the radius of Gaussian free field excursion clusters

no code implementations6 Jan 2021 Subhajit Goswami, Pierre-François Rodriguez, Franco Severo

We consider the Gaussian free field $\varphi$ on $\mathbb{Z}^d$, for $d\geq3$, and give sharp bounds on the probability that the radius of a finite cluster in the excursion set $\{\varphi \geq h\}$ exceeds a large value $N$, for any height $h \neq h_*$, where $h_*$ refers to the corresponding percolation critical parameter.

Probability Mathematical Physics Mathematical Physics 60K35, 82B43, 60G15, 60G60, 60J45

One-Shot Coordination of First and Last Mode Transportation

no code implementations5 Jan 2020 Subhajit Goswami, Pavankumar Tallapragada

In this paper, we consider coordinated control of feeder vehicles for first and last mode transportation.

Computational Efficiency Disaster Response

Adaptive Estimation of Multivariate Piecewise Polynomials and Bounded Variation Functions by Optimal Decision Trees

no code implementations26 Nov 2019 Sabyasachi Chatterjee, Subhajit Goswami

We prove oracle inequalities for the finite sample risk of Dyadic CART and ORT which imply tight risk bounds for several function classes of interest.

Denoising regression

New Risk Bounds for 2D Total Variation Denoising

no code implementations4 Feb 2019 Sabyasachi Chatterjee, Subhajit Goswami

2D Total Variation Denoising (TVD) is a widely used technique for image denoising.

Image Denoising

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