PH Ibarguengoytia
Any time probabilistic reasoning for sensor validation
Ibarguengoytia, PH; Sucar, E; Vadera, S
Abstract
For many real time applications, it is important to validate the information received form the sensors before entering higher levels of reasoning. This paper presents an any time probabilistic algorithm for validating the information provided by sensors. The system consists of two Bayesian network models. The first one is a model of the dependencies between sensors and it is used to validate each sensor. It provides a list of potentially faulty
sensors. To isolate the real faults, a second Bayesian network is used, which relates the potential faults with the real faults. This second model is also used to make the validation algorithm any time, by validating first the sensors that provide more information. To select the next sensor to validate, and measure the quality of the results at each stage, an entropy function is used. This function captures in a single quantity both the certainty and specificity measures of any time algorithms.
Together, both models constitute a mechanism for validating
sensors in an any time fashion, providing at each step the
probability of correct/faulty for each sensor, and the total quality of theresults. The algorithm has been tested in the validation of temperature sensors of a power plant.
Citation
Ibarguengoytia, P., Sucar, E., & Vadera, S. (1998, March). Any time probabilistic reasoning for sensor validation. Presented at Fourteenth Conference on Uncertainty in Artificial Intelligence, University of Wisconsin Business School, Madison, Wisconsin, USA
Presentation Conference Type | Other |
---|---|
Conference Name | Fourteenth Conference on Uncertainty in Artificial Intelligence |
Conference Location | University of Wisconsin Business School, Madison, Wisconsin, USA |
Start Date | Mar 17, 1998 |
Publication Date | Jan 1, 1998 |
Deposit Date | Jun 23, 2010 |
Publicly Available Date | Apr 5, 2016 |
Keywords | sensor validation, Bayesian networks, any time computing, AI |
Additional Information | Event Type : Conference |
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