Published July 31, 2019 | Version Submitted
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Binary Component Decomposition. Part I: The Positive-Semidefinite Case

Abstract

This paper studies the problem of decomposing a low-rank positive-semidefinite matrix into symmetric factors with binary entries, either {±1} or {0,1}. This research answers fundamental questions about the existence and uniqueness of these decompositions. It also leads to tractable factorization algorithms that succeed under a mild deterministic condition. A companion paper addresses the related problem of decomposing a low-rank rectangular matrix into a binary factor and an unconstrained factor.

Additional Information

Date: 31 July 2019. The authors thank Benjamin Recht for helpful conversations at an early stage of this project and Madeleine Udell for valuable comments regarding the related work section. Peter Jung suggested activity detection in massive MIMO system as a potential application. This research was partially funded by ONR awards N00014-11-1002, N00014-17-12146, and N00014-18-12363. Additional support was provided by the Gordon & Betty Moore Foundation.

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Additional details

Identifiers

Eprint ID
107223
Resolver ID
CaltechAUTHORS:20201218-154441081

Related works

Funding

Office of Naval Research (ONR)
N00014-11-1002
Office of Naval Research (ONR)
N00014-17-12146
Office of Naval Research (ONR)
N00014-18-12363
Gordon and Betty Moore Foundation

Dates

Created
2020-12-21
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Updated
2023-06-02
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