Non-negativity constrained missing data estimation for high-dimensional and sparse matrices

Xin Luo, Shuai Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)

Abstract

Latent factor (LF) models have proven to be accurate and efficient in extracting hidden knowledge from high-dimensional and sparse (HiDS) matrices. However, most LF models fail to fulfill the non-negativity constraints that reflect the non-negative nature of industrial data. Yet existing non-negative LF models for HiDS matrices suffer from slow convergence leading to considerable time cost. An alternating direction method-based non-negative latent factor (ANLF) model decomposes a non-negative optimization process into small sub-tasks. It updates each LF non-negatively based on the latest state of those trained before, thereby achieving fast convergence and maintaining high prediction accuracy and scalability. This paper theoretically analyze the characteristics of an ANLF model, and presents detailed empirical study regarding its performance on several HiDS matrices arising from industrial applications currently in use. Therefore, its capability of addressing HiDS matrices is validated in both theory and practice.

Original languageEnglish
Title of host publication2017 13th IEEE Conference on Automation Science and Engineering, CASE 2017
PublisherIEEE Computer Society
Pages1368-1373
Number of pages6
ISBN (Electronic)9781509067800
DOIs
Publication statusPublished - 12 Jan 2018
Event13th IEEE Conference on Automation Science and Engineering, CASE 2017 - Xi'an, China
Duration: 20 Aug 201723 Aug 2017

Publication series

NameIEEE International Conference on Automation Science and Engineering
Volume2017-August
ISSN (Print)2161-8070
ISSN (Electronic)2161-8089

Conference

Conference13th IEEE Conference on Automation Science and Engineering, CASE 2017
CountryChina
CityXi'an
Period20/08/1723/08/17

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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