On Dec 17, 2010, at 9:15 AM, John F. Sowa wrote: (02)
> 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:
> 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 The GIGO law has not been repealed, but some people try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.
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