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Dempster-Shafer theory initial belief values

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Problem Detail: 

I am looking to implement D-S Theory in my (computer science) research, I'll be using it to determine the probability that a triggered sensor event is a true positive.

How would you calculate an initial belief value without having the ability to perform data mining on a dataset (a cold start)?

One solution that has been postulated is to use the manufactures performance statistics that the sensors are working correctly and then adjust this over time to take account for false positives. Although this will result is a very high initial belief rate for some sensors (95% belief).

Asked By : ColinShewell
Answered By : Jochem

If the 95% (initial) belief corresponds to the probability of a true positive according to the performance statistics, then that seems appropriate to me.

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