4 papers
Geometrically Constrained Decentralized Independent Vector Analysis for Distributed Microphone Arrays
Changda Chen, Yichen Yang, Wei Liu +4
This paper proposes a geometrically constrained decentralized independent vector analysis (GC-Dec-IVA) method for distributed microphone arrays. Recently proposed Dec-IVA method en…
A Newton Interior-Point Method for Factor Analysis
Linyang Wang, Wanquan Liu, Bin Zhu
Factor Analysis is an effective way of dimensionality reduction achieved by revealing the low-rank plus sparse structure of the data covariance matrix. The corresponding model iden…
factor analysis
Linyang Wang, Wanquan Liu, Bin Zhu
Factor Analysis is about finding a low-rank plus sparse additive decomposition from a noisy estimate of the signal covariance matrix. In order to get such a decomposition, we formu…
Factor Analysis: A P-Stationary Point Theory
Linyang Wang, Bin Zhu, Wanquan Liu
Factor Analysis is a widely used modeling technique for stationary time series which achieves dimensionality reduction by revealing a hidden low-rank plus sparse structure of the c…