Search Results for author: Divyanshu Vats

Found 7 papers, 0 papers with code

Mathematical Language Processing: Automatic Grading and Feedback for Open Response Mathematical Questions

no code implementations18 Jan 2015 Andrew S. Lan, Divyanshu Vats, Andrew E. Waters, Richard G. Baraniuk

Our data-driven framework for mathematical language processing (MLP) leverages solution data from a large number of learners to evaluate the correctness of their solutions, assign partial-credit scores, and provide feedback to each learner on the likely locations of any errors.

Clustering

Active Learning for Undirected Graphical Model Selection

no code implementations13 Apr 2014 Divyanshu Vats, Robert D. Nowak, Richard G. Baraniuk

This paper studies graphical model selection, i. e., the problem of estimating a graph of statistical relationships among a collection of random variables.

Active Learning Model Selection

Path Thresholding: Asymptotically Tuning-Free High-Dimensional Sparse Regression

no code implementations23 Feb 2014 Divyanshu Vats, Richard G. Baraniuk

In this paper, we address the challenging problem of selecting tuning parameters for high-dimensional sparse regression.

Model Selection regression +1

Swapping Variables for High-Dimensional Sparse Regression with Correlated Measurements

no code implementations5 Dec 2013 Divyanshu Vats, Richard G. Baraniuk

We consider the high-dimensional sparse linear regression problem of accurately estimating a sparse vector using a small number of linear measurements that are contaminated by noise.

regression Vocal Bursts Intensity Prediction

When in Doubt, SWAP: High-Dimensional Sparse Recovery from Correlated Measurements

no code implementations NeurIPS 2013 Divyanshu Vats, Richard Baraniuk

We consider the problem of accurately estimating a high-dimensional sparse vector using a small number of linear measurements that are contaminated by noise.

Vocal Bursts Intensity Prediction

High-Dimensional Screening Using Multiple Grouping of Variables

no code implementations9 Aug 2012 Divyanshu Vats

Screening is the problem of finding a superset of the set of non-zero entries in an unknown p-dimensional vector \beta* given n noisy observations.

Variable Selection Vocal Bursts Intensity Prediction

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