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Multisensor Data Fusion for Water Quality Evaluation Using Dempster-Shafer Evidence Theory

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  • Jian Zhou
  • Linfeng Liu
  • Jian Guo
  • Lijuan Sun

Abstract

A multisensor data fusion approach for water quality evaluation using Dempster-Shafer evidence theory is presented. To evaluate water quality, each sensor measurement is considered as a piece of evidence. Based on the water quality parameters measured by sensor node, the mass function of water quality class is calculated. Evidence from each sensor is given a reliability discounting and then combined with the others by D-S rule. According to the decision rule which uses the fusion mass function values, the class of water quality can be determined. Finally, experiments are given to demonstrate that the proposed approach can evaluate water quality from uncertain sensor data and improve evaluation performance.

Suggested Citation

  • Jian Zhou & Linfeng Liu & Jian Guo & Lijuan Sun, 2013. "Multisensor Data Fusion for Water Quality Evaluation Using Dempster-Shafer Evidence Theory," International Journal of Distributed Sensor Networks, , vol. 9(11), pages 147419-1474, November.
    • Handle: RePEc:sae:intdis:v:9:y:2013:i:11:p:147419
    DOI: 10.1155/2013/147419
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