Search Results for author: Harsha Honnappa

Found 9 papers, 0 papers with code

Distributed Sparse Regression via Penalization

no code implementations12 Nov 2021 Yao Ji, Gesualdo Scutari, Ying Sun, Harsha Honnappa

First, we establish statistical consistency of the estimator: under a suitable choice of the penalty parameter, the optimal solution of the penalized problem achieves near optimal minimax rate $\mathcal{O}(s \log d/N)$ in $\ell_2$-loss, where $s$ is the sparsity value, $d$ is the ambient dimension, and $N$ is the total sample size in the network -- this matches centralized sample rates.

regression

Bayesian Joint Chance Constrained Optimization: Approximations and Statistical Consistency

no code implementations23 Jun 2021 Prateek Jaiswal, Harsha Honnappa, Vinayak A. Rao

Bayesian posteriors afford a principled mechanism to incorporate data and prior knowledge into stochastic optimization problems.

Stochastic Optimization

PAC-Bayes Bounds on Variational Tempered Posteriors for Markov Models

no code implementations13 Jan 2021 Imon Banerjee, Vinayak A. Rao, Harsha Honnappa

We present a PAC-Bayesian analysis of variational Bayes (VB) approximations to tempered Bayesian posterior distributions, bounding the model risk of the VB approximations.

Statistics Theory Statistics Theory

Variational inference for diffusion modulated Cox processes

no code implementations1 Jan 2021 Prateek Jaiswal, Harsha Honnappa, Vinayak Rao

This paper proposes a stochastic variational inference (SVI) method for computing an approximate posterior path measure of a Cox process.

Variational Inference

Estimating Stochastic Poisson Intensities Using Deep Latent Models

no code implementations12 Jul 2020 Ruixin Wang, Prateek Jaiwal, Harsha Honnappa

We present methodology for estimating the stochastic intensity of a doubly stochastic Poisson process.

Asymptotic Consistency of Loss-Calibrated Variational Bayes

no code implementations4 Nov 2019 Prateek Jaiswal, Harsha Honnappa, Vinayak A. Rao

We also establish the asymptotic consistency of decision rules obtained from a `naive' variational Bayesian procedure.

Decision Making

Asymptotic Consistency of $α-$Rényi-Approximate Posteriors

no code implementations5 Feb 2019 Prateek Jaiswal, Vinayak A. Rao, Harsha Honnappa

We study the asymptotic consistency properties of $\alpha$-R\'enyi approximate posteriors, a class of variational Bayesian methods that approximate an intractable Bayesian posterior with a member of a tractable family of distributions, the member chosen to minimize the $\alpha$-R\'enyi divergence from the true posterior.

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