Search Results for author: Georgina Hall

Found 7 papers, 1 papers with code

Learning to Warm-Start Fixed-Point Optimization Algorithms

2 code implementations14 Sep 2023 Rajiv Sambharya, Georgina Hall, Brandon Amos, Bartolomeo Stellato

We introduce a machine-learning framework to warm-start fixed-point optimization algorithms.

Generalization Bounds

Sums of Separable and Quadratic Polynomials

no code implementations11 May 2021 Amir Ali Ahmadi, Cemil Dibek, Georgina Hall

We establish that the answer to question (i) is positive for univariate plus quadratic polynomials and for convex SPQ polynomials, but negative already for bivariate quartic SPQ polynomials.

Partial Recovery in the Graph Alignment Problem

no code implementations1 Jul 2020 Georgina Hall, Laurent Massoulié

Our focus here is on partial recovery, i. e., we look for a one-to-one mapping which is correct on a fraction of the nodes of the graph rather than on all of them, and we assume that the two input graphs to the problem are correlated Erd\H{o}s-R\'enyi graphs of parameters $(n, q, s)$.

A Survey of Recent Scalability Improvements for Semidefinite Programming with Applications in Machine Learning, Control, and Robotics

no code implementations14 Aug 2019 Anirudha Majumdar, Georgina Hall, Amir Ali Ahmadi

Historically, scalability has been a major challenge to the successful application of semidefinite programming in fields such as machine learning, control, and robotics.

BIG-bench Machine Learning

On the Complexity of Detecting Convexity over a Box

no code implementations16 Jun 2018 Amir Ali Ahmadi, Georgina Hall

As a byproduct, our proof shows that the problem of testing whether all matrices in an interval family are positive semidefinite is strongly NP-hard.

Open-Ended Question Answering

Geometry of 3D Environments and Sum of Squares Polynomials

no code implementations22 Nov 2016 Amir Ali Ahmadi, Georgina Hall, Ameesh Makadia, Vikas Sindhwani

Motivated by applications in robotics and computer vision, we study problems related to spatial reasoning of a 3D environment using sublevel sets of polynomials.

DC Decomposition of Nonconvex Polynomials with Algebraic Techniques

no code implementations6 Oct 2015 Amir Ali Ahmadi, Georgina Hall

We consider the problem of decomposing a multivariate polynomial as the difference of two convex polynomials.

valid

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