Title :
Modeling group dynamics using graphical models and tensor decompositions
Author :
Lin Li ; Swami, Ananthram ; Scaglione, Anna
Author_Institution :
US Army Res. Lab., Adephi, MD, USA
Abstract :
We propose a general modeling framework for learning group dynamics in data collected from multiple information sources and over time. In particular, groups are characterized by specific temporal patterns based on hidden Markov models. Tensor decomposition techniques combined with graphical models are used to extract group information from the observed data.
Keywords :
feature extraction; graph theory; hidden Markov models; pattern clustering; tensors; graphical model; group dynamics modelling; group information extraction; hidden Markov model; temporal pattern; tensor decomposition; Data models; Dictionaries; Graphical models; Hidden Markov models; Signal to noise ratio; Social network services; Tensile stress;
Conference_Titel :
Signal and Information Processing (GlobalSIP), 2014 IEEE Global Conference on
Conference_Location :
Atlanta, GA
DOI :
10.1109/GlobalSIP.2014.7032228