TY - GEN
T1 - An algebraic method for approximate rank one factorization of rank deficient matrices
AU - Király, Franz J.
AU - Ziehe, Andreas
AU - Müller, Klaus Robert
PY - 2012
Y1 - 2012
N2 - In this paper we consider the problem of finding approximate common rank one factors for a set of matrices. Instead of jointly diagonalizing the matrices, we perform calculations directly in the problem intrinsic domain: we present an algorithm, AROFAC, which searches the approximate linear span of the matrices using an indicator function for the rank one factors, finding specific single sources. We evaluate the feasibility of this approach by discussing simulations on generated data and a neurophysiological dataset. Note however that our contribution is intended to be mainly conceptual in nature.
AB - In this paper we consider the problem of finding approximate common rank one factors for a set of matrices. Instead of jointly diagonalizing the matrices, we perform calculations directly in the problem intrinsic domain: we present an algorithm, AROFAC, which searches the approximate linear span of the matrices using an indicator function for the rank one factors, finding specific single sources. We evaluate the feasibility of this approach by discussing simulations on generated data and a neurophysiological dataset. Note however that our contribution is intended to be mainly conceptual in nature.
UR - http://www.scopus.com/inward/record.url?scp=84857331875&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857331875&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-28551-6_34
DO - 10.1007/978-3-642-28551-6_34
M3 - Conference contribution
AN - SCOPUS:84857331875
SN - 9783642285509
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 272
EP - 279
BT - Latent Variable Analysis and Signal Separation - 10th International Conference, LVA/ICA 2012, Proceedings
T2 - 10th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2012
Y2 - 12 March 2012 through 15 March 2012
ER -