Search Results for author: Urvashi Oswal

Found 4 papers, 0 papers with code

Linear Bandits with Feature Feedback

no code implementations9 Mar 2019 Urvashi Oswal, Aniruddha Bhargava, Robert Nowak

In comparison, the regret of traditional linear bandits is $d\sqrt{T}$, where $d$ is the total number of (relevant and irrelevant) features, so the improvement can be dramatic if $k\ll d$.

Scalable Sparse Subspace Clustering via Ordered Weighted $\ell_1$ Regression

no code implementations10 Jul 2018 Urvashi Oswal, Robert Nowak

The main contribution of the paper is a new approach to subspace clustering that is significantly more computationally efficient and scalable than existing state-of-the-art methods.

Clustering regression

Block CUR: Decomposing Matrices using Groups of Columns

no code implementations17 Mar 2017 Urvashi Oswal, Swayambhoo Jain, Kevin S. Xu, Brian Eriksson

In this paper, we consider matrix approximation by sampling predefined \emph{blocks} of columns (or rows) from the matrix.

Distributed Computing

A Compressed Sensing Based Decomposition of Electrodermal Activity Signals

no code implementations24 Feb 2016 Swayambhoo Jain, Urvashi Oswal, Kevin S. Xu, Brian Eriksson, Jarvis Haupt

The measurement and analysis of Electrodermal Activity (EDA) offers applications in diverse areas ranging from market research, to seizure detection, to human stress analysis.

Seizure Detection

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