AAAI Publications, Twenty-Fourth International FLAIRS Conference

Font Size: 
Learning Temporal Nodes Bayesian Networks
Pablo Hernandez-Leal, L. Enrique Sucar, Jesus A. Gonzalez

Last modified: 2011-03-21

Abstract


Temporal Nodes Bayesian Networks (TNBNs) are an alternative to Dynamic Bayesian Networks for temporal reasoning, that result in much simpler and efficient models in some domains. However, methods for learning this type of models from data have not been developed. In this paper we propose a learning algorithm to obtain the structure and temporal intervals for TNBNs from data. The method has three phases: (i) obtain an initial approximation of the intervals, (ii) obtain a structure using a standard algorithm and (iii) refine the intervals for each temporal node based on a clustering algorithm. We evaluated the method with synthetic data. Our method obtains the best score in terms of the structure and a competitive predictive accuracy.

Full Text: PDF