Gu, Dongbing and Hu, Huosheng (2011) Active Learning of Gaussian Processes for Spatial Functions in Mobile Sensor Networks. In: UNSPECIFIED, ? - ?.
Gu, Dongbing and Hu, Huosheng (2011) Active Learning of Gaussian Processes for Spatial Functions in Mobile Sensor Networks. In: UNSPECIFIED, ? - ?.
Gu, Dongbing and Hu, Huosheng (2011) Active Learning of Gaussian Processes for Spatial Functions in Mobile Sensor Networks. In: UNSPECIFIED, ? - ?.
Abstract
This paper proposes a spatial function modeling approach using mobile sensor networks, which potentially can be used for environmental surveillance applications. The mobile sensor nodes are able to sample the point observations of an 2D spatial function. On the one hand, they will use the observations to generate a predictive model of the spatial function. On the other hand, they will make collective motion decisions to move into the regions where high uncertainties of the predictive model exist. In the end, an accurate predictive model is obtained in the sensor network and all the mobile sensor nodes are distributed in the environment with an optimized pattern. Gaussian process regression is selected as the modeling technique in the proposed approach. The hyperparameters of Gaussian process model are learned online to improve the accuracy of the predictive model. The collective motion control of mobile sensor nodes is based on a locational optimization algorithm, which utilizes an information entropy of the predicted Gaussian process to explore the environment and reduce the uncertainty of predictive model. Simulation results are provided to show the performance of the proposed approach. © 2011 IFAC.
Item Type: | Conference or Workshop Item (UNSPECIFIED) |
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Additional Information: | Published proceedings: IFAC Proceedings Volumes (IFAC-PapersOnline) |
Subjects: | Q Science > QA Mathematics > QA75 Electronic computers. Computer science |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 17 Dec 2012 16:38 |
Last Modified: | 23 Oct 2024 06:21 |
URI: | http://repository.essex.ac.uk/id/eprint/4188 |
Available files
Filename: Active Learning of Gaussian Processes for Spatial Functions in Mobile Sensor Networks.pdf