Title :
Structure inference for networks with general non-parametric inter-object relationships
Author :
Murphy, James ; Godsill, Simon
Author_Institution :
Dept. of Eng., Univ. of Cambridge, Cambridge, UK
Abstract :
We present an algorithm for the estimation of the structure of a class of dynamic networks in which object interactions depend on some one-dimensional function of their joint state (e.g. inter-object distance). By using a non-parametric Gaussian process prior assumption on the inter-object relationship strength the algorithm is able to infer a wide range of relationship types. We demonstrate this on a physical object tracking problem. The algorithm is able to cope with a certain degree of noise and can deal with systems involving hundreds of objects on modest hardware.
Keywords :
Gaussian processes; network theory (graphs); dynamic networks; general nonparametric inter-object relationships; joint state; networks structure inference; nonparametric Gaussian process prior assumption; object interactions; one-dimensional function; physical object tracking problem; Complexity theory; Covariance matrix; Equations; Gaussian processes; Mathematical model; Noise; Vectors;
Conference_Titel :
Information Fusion (FUSION), 2012 15th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-0417-7
Electronic_ISBN :
978-0-9824438-4-2