Temporal Functional Dependencies and Temporal Nodes Bayesian Networks

Authors:
Wei Yi Liu;Ning Song;Hong Yao
Affiliations:
School of Information Science and Engineering, Yunnan University, Kunming 650091, PR China;Department of Metallurgy, Kunming University of Science and Technology, Kunming 650093, PR China;Department of Computer Science, University of Regina, SK, Canada, S4S 0A2
Venue:
The Computer Journal
Year:
2005

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Abstract

A temporal nodes Bayesian network (TNBN) is an alternative graphical representation of temporal probabilistic information.The temporal functional dependency is an important data dependencyin temporal relational databases. In this paper temporal data dependencies are extended into delayed conditions, called asynchronous dependencies. The purpose of this paper is to set up a connection between these asynchronous data dependencies and TNBNs. We show that we can obtain the maximum conditionalin dependencies implied by given temporal functional dependencies. Furthermore, we propose an approach to construct a TNBN from a set of temporal functional dependencies.