From what I have seen here in past discussions, errors in ontologies
are often in the eyes of the beholder and depend very much on what you
want to do with it. (01)
Related to John's point on indictments; an "error" that forces you to
change the way that you think that the universe is set up, is a lot more
serious than one that has no effect on your views. (02)
Ron (03)
On 17/12/2010 11:15 AM, John F. Sowa wrote:
> On 12/17/2010 10:54 AM, Jack Ring wrote:
>> Are you saying that the incidence of error will not be a factor
>> in the value proposition that customers will find compelling?
>> What is your attitude toward ontologies with an error rate
>> of 1 per 1000 assertions?
> Errors are always a factor, but some are more serious than others.
>
> As I'm writing this, the radio in the background had a news
> item about an investigation of hedge funds that may have used
> inside information.
>
> The interviewer asked whether that would be a "big case",
> and the response was "Any case in which you are indicted
> is a big case for you."
>
> I believe that a similar principle applies to ontologies.
>
> But I would also recommend tools that can detect and avoid
> as many errors as possible. For example, the software for
> Formal Concept Analysis (FCA) generates lattices that are
> guaranteed to be consistent. See the FCA home page:
>
> http://www.upriss.org.uk/fca/fca.html
>
> This is a convenient method for ensuring that multiple
> inheritance does not create contradictions. But FCA only
> guarantees consistency with the data you give it. If you
> don't give it all the relevant data, FCA can't use it.
>
> The GIGO law has not been repealed, but some people try
> to deodorize the garbage by spraying some ontology on it.
>
> John
>
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