[Bioperl-l] OntologyTermI

[Lincoln Stein]

Absolutely.  You might want to take the term and put it into a different 
structure.  For example, this is the relationship between GO and GOSlim.  The 
first is a full DAG, and the second is a very truncated hierarchy.  However, 
every term in GOSlim can be found in GO, and so you'd like the associations 
to remain the same, etc.

Lincoln


On Wednesday 28 August 2002 03:57 pm, Matthew Pocock wrote:
> Lincoln Stein wrote:
> > The nice thing about separating the Term from the DAG is that you can
> > then reuse the same term in different types of graphs, or chuck the graph
> > entirely without scrambling the meaning of the term.
> >
> > Lincoln
>
> Does the term /have/ any meaning outside of the graph? I guess any human
> readable description has meaning outside the graph, but the whole point
> of these formal graphical knowledge representations are to put all the
> stuff we can pin down in the graph, not in the human readable text. Are
> the graphs of terms definitely DAGs? I'm not convinced. That would
> restrict the ontology to fairly booring relationships, unless I'm
> missing something here. Perhaps you just mean a hierachial type system -
> the subset or instanceof operator, not a full ontology.
>
> Matthew
>
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