Author pages are created from data sourced from our academic publisher partnerships and public sources.

Publications Influence

On matrix estimation under monotonicity constraints

- S. Chatterjee, Adityanand Guntuboyina, B. Sen
- Mathematics
- 10 June 2015

We consider the problem of estimating an unknown $n_1 \times n_2$ matrix $\mathbf{\theta^*}$ from noisy observations under the constraint that $\mathbf{\theta}^*$ is nondecreasing in both rows and… Expand

46 8- PDF

MULTIWAVELENGTH CONSTRAINTS ON PULSAR POPULATIONS IN THE GALACTIC CENTER

- R. Wharton, S. Chatterjee, J. Cordes, J. Deneva, T. Lazio
- Physics
- 17 November 2011

The detection of radio pulsars within the central few parsecs of the Galaxy would provide a unique probe of the gravitational and magneto-ionic environments in the Galactic center (GC) and, if close… Expand

66 7- PDF

Isotonic regression in general dimensions

- Qiyang Han, Tengyao Wang, S. Chatterjee, R. J. Samworth
- Mathematics
- 30 August 2017

We study the least squares regression function estimator over the class of real-valued functions on $[0,1]^d$ that are increasing in each coordinate. For uniformly bounded signals and with a fixed,… Expand

50 5- PDF

Adaptive Risk Bounds in Univariate Total Variation Denoising and Trend Filtering

- Adityanand Guntuboyina, Donovan Lieu, S. Chatterjee, B. Sen
- Mathematics
- 16 February 2017

We study trend filtering, a relatively recent method for univariate nonparametric regression. For a given positive integer $r$, the $r$-th order trend filtering estimator is defined as the minimizer… Expand

32 5- PDF

Estimation in Tournaments and Graphs Under Monotonicity Constraints

- S. Chatterjee, Sumit Mukherjee
- Mathematics, Computer Science
- IEEE Transactions on Information Theory
- 15 March 2016

TLDR

17 4- PDF

Spatial Adaptation in Trend Filtering

- Adityanand Guntuboyina, Donovan Lieu, S. Chatterjee, B. Sen
- Mathematics
- 20 February 2017

15 4

Adaptive Risk Bounds in Unimodal Regression

- S. Chatterjee, J. Lafferty
- Mathematics
- 9 December 2015

We study the statistical properties of the least squares estimator in unimodal sequence estimation. Although closely related to isotonic regression, unimodal regression has not been as extensively… Expand

26 3- PDF

Optimal Frequency Ranges for Submicrosecond Precision Pulsar Timing

- M. Lam, M. Mclaughlin, J. Cordes, S. Chatterjee, T. Lazio
- Physics
- 6 October 2017

Precision pulsar timing requires optimization against measurement errors and astrophysical variance from the neutron stars themselves and the interstellar medium. We investigate optimization of… Expand

12 2- PDF

Opto-thermal analysis of a lightweighted mirror for solar telescope.

- R. K. Banyal, B. Ravindra, S. Chatterjee
- Materials Science, Medicine
- Optics express
- 26 February 2013

In this paper, an opto-thermal analysis of a moderately heated lightweighted solar telescope mirror is carried out using 3D finite element analysis (FEA). A physically realistic heat transfer model… Expand

28 1- PDF

An Improved Global Risk Bound in Concave Regression

- S. Chatterjee
- Mathematics
- 15 December 2015

A new risk bound is presented for the problem of convex/concave function estimation, using the least squares estimator. The best known risk bound, as had appeared in \citet{GSvex}, scaled like… Expand

8 1- PDF