Title :
Evaluation of first order Bayesian networks for context modeling and reasoning
Author_Institution :
Comput. Sci. & Eng., Univ. of Texas at Arlington, Arlington, TX, USA
fDate :
March 29 2010-April 2 2010
Abstract :
There are numerous implementations of context aware application frameworks. Knowledge is being inferred in diverse ways across numerous platforms. A disappointing observation is the limited reuse of context reasoning and knowledge. From the perspective of a new context aware application developer, existing frameworks may not be sufficient for the following reasons: i) insufficient knowledge representation formalisms; ii) limited generalized APIs for reasoning; and iii) inefficient and inflexible reasoning choices that fail to meet application needs. Augmenting existing frameworks with a generalized hierarchical hybrid context reasoning engine (HyCoRE) could improve their reusability. However, a middleware that offers a sufficient variety of optimizable techniques for reasoning across heterogeneous contexts is not openly available. As a step towards HyCoRE, we evaluate MEBN, a first order Bayesian network knowledge formalism, for suitability in data modeling and reasoning for pervasive computing contexts.
Keywords :
belief networks; formal specification; formal verification; inference mechanisms; middleware; ubiquitous computing; HyCoRE engine; context aware application; context modeling; context reasoning; first order Bayesian networks; hierarchical hybrid context reasoning engine; knowledge formalism; middleware; pervasive computing contexts; Application software; Bayesian methods; Computer science; Context awareness; Context modeling; Engines; Knowledge representation; Middleware; Ontologies; Uncertainty; Context; Context Inference; Context Reasoning; Context-Aware Computing; MEBN; Multi-Entity Bayesian Network;
Conference_Titel :
Pervasive Computing and Communications Workshops (PERCOM Workshops), 2010 8th IEEE International Conference on
Conference_Location :
Mannheim
Print_ISBN :
978-1-4244-6605-4
Electronic_ISBN :
978-1-4244-6606-1
DOI :
10.1109/PERCOMW.2010.5470569