Expressing Confidence in a Location Object

Document Type Replaced Internet-Draft (individual)
Author Martin Thomson 
Last updated 2014-02-18 (latest revision 2013-08-27)
Replaced by RFC 7459
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


A confidence element is described that expresses the estimated probability that the associated location information is correct. This element conveys information that might otherwise be lost about the probability distribution represented by a region of uncertainty.


Martin Thomson (

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