On 8/11/2013 2:21 PM, Simon Spero wrote:
> On Aug 10, 2013 9:04 PM, Bruce Schuman wrote:
>> TAXONONOMIC DECOMPOSITION AND DECIMAL PLACES
>> This is an idea that fascinates me and feels powerful – because it
>> seems “perfectly recursive” and amazingly parsimonious. To me, this
>> idea feels like Occam’s Razor personified – so tell me why I’m wrong…
> Suppose that we were to use a fixed point representation, with the
> decimal place fixed after the third digit...
> Beneficial mammals could be assigned 599.163; ungulates 599.6.
> But what about ungulates that are beneficial?
> "The intellect cannot be tied down with a decimal thong"
> -- http://www.cafepress.com/ranganathong (01)
Yes. Decimals can only encode a simple tree with single inheritance. (02)
Llull, Leibniz, and librarians such as Ranganathan and many, many
others have recognized that multiple inheritance is essential
in any general-purpose ontology. (03)
For further discussion and pointers to the FCA tools, see slides
94 to 96 of http://www.jfsowa.com/talks/kdptut.pdf (04)
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