2009年
Analysis on Equilibrium Point of Expectation Propagation Using Information Geometry
ADVANCES IN NEURO-INFORMATION PROCESSING, PT II
- ,
- 巻
- 5507
- 号
- PART 2
- 開始ページ
- 155
- 終了ページ
- 162
- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- DOI
- 10.1007/978-3-642-03040-6_19
- 出版者・発行元
- SPRINGER-VERLAG BERLIN
Expectation Propagation (EP) extends belief propagation by approximating messages with expectations of statistics, in which users can choose the statistics. In this paper, we discuss how a choice of statistics affects accuracy of EP's estimates. We approximate estimation error of EP via perturbation analysis based on information geometry. By comparing the approximated estimation error. we show that adding statistics does not necessarily improve the accuracy of EP. A numerical example confirms validity of our analytical results.
- リンク情報
- ID情報
-
- DOI : 10.1007/978-3-642-03040-6_19
- ISSN : 0302-9743
- Web of Science ID : WOS:000270578200019