TY - GEN
T1 - Geometrical formulation of the nonnegative matrix factorization
AU - Akaho, Shotaro
AU - Hino, Hideitsu
AU - Nara, Neneka
AU - Murata, Noboru
N1 - Funding Information:
Supported by JSPS KAKENHI Grant Number 16K16108, 17H01793.
PY - 2018
Y1 - 2018
N2 - Nonnegative matrix factorization (NMF) has many applications as a tool for dimension reduction. In this paper, we reformulate the NMF from an information geometrical viewpoint. We show that a conventional optimization criterion is not geometrically natural, thus we propose to use more natural criterion. By this formulation, we can apply a geometrical algorithm based on the Pythagorean theorem. We also show the algorithm can improve the existing algorithm through numerical experiments.
AB - Nonnegative matrix factorization (NMF) has many applications as a tool for dimension reduction. In this paper, we reformulate the NMF from an information geometrical viewpoint. We show that a conventional optimization criterion is not geometrically natural, thus we propose to use more natural criterion. By this formulation, we can apply a geometrical algorithm based on the Pythagorean theorem. We also show the algorithm can improve the existing algorithm through numerical experiments.
KW - Dimension reduction
KW - Information geometry
KW - Topic model
UR - http://www.scopus.com/inward/record.url?scp=85059002284&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059002284&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-04182-3_46
DO - 10.1007/978-3-030-04182-3_46
M3 - Conference contribution
AN - SCOPUS:85059002284
SN - 9783030041816
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 525
EP - 534
BT - Neural Information Processing - 25th International Conference, ICONIP 2018, Proceedings
A2 - Cheng, Long
A2 - Ozawa, Seiichi
A2 - Leung, Andrew Chi Sing
PB - Springer Verlag
T2 - 25th International Conference on Neural Information Processing, ICONIP 2018
Y2 - 13 December 2018 through 16 December 2018
ER -