RW wrote:
> On Fri, 02 Oct 2009 00:14:52 +0200
> mouss <mo...@ml.netoyen.net> wrote:
> 
>> RW wrote:
> 
>>> The term  false-positive can apply to any test. A test for ham
>>> that matches a spam is a false-positive, it's a matter of context.
>> spam too can be (re)defined. and actually any term. but it is assumed
>> here that we talk about spam detection. so false negative means "miss"
>> and false positive means "false alarm". this is the common terminology
>> inherited from intrusion detection.
> 
> The term comes from statistics, not intrusion detection. I don't
> know much about the latter, perhaps people in that field are a little
> sloppy in their usage, more  likely all the tests are expressed as
> tests for intrusion, so the same kind of issue doesn't arise.
> 
> The source of your confusion is that you are mixing-up the terminology
> of the overall classification and individual test results. Think of
> this way, in a fingerprint comparison the meanings of TP, TN, FP and FN
> are obvious and intrinsic to the test, it would be absurd to switch
> them around depending on whether it's evidence for the defence or
> prosecution.

let's take it more easily: Please explain to me what was an FP in this
thread.

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