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A Method to Determine Basic Probability Assignment in Context Awareness of a Moving Object

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  • Donghyok Suh
  • Juhye Yook

Abstract

Determining basic probability assignment (BPA) is essential in multisensor data fusion by using Fussy Theory or Dempster-Shafer Theory (DST). The study presented a method to determine BPA through sensor data only reported by sensors without depending on preset information data modeled prior to actual events. This was used to determine BPA for multi-sensor data fusion so that a pedestrian, who walked or moved, could recognize a moving object. The method resulted from the study was to evaluate the changes of each sensor measurement as time passed. Each BPA of each focal element was normalized to evaluate the aspects of the changes by time and to meet the basic characteristics of BPA in DST. That is, BPA of each focal element after evaluating sensor data was ranged between 0 and 1, and the total amount of all focal elements was 1. The study showed that a pedestrian could recognize a moving object with the method of determining BPA through multi-sensor data fusion conducted in the study.

Suggested Citation

  • Donghyok Suh & Juhye Yook, 2013. "A Method to Determine Basic Probability Assignment in Context Awareness of a Moving Object," International Journal of Distributed Sensor Networks, , vol. 9(8), pages 972641-9726, August.
    • Handle: RePEc:sae:intdis:v:9:y:2013:i:8:p:972641
    DOI: 10.1155/2013/972641
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