[Crm-sig] Issue 230 Co-reference
Maximilian Schich
maximilian at schich.info
Wed Mar 26 22:15:17 EET 2014
Whoever collects co-references: The number of co-reference links
explodes n*(n-1) with the number of references to the reference object.
Imagine co-reference links between all books citing the bible. This is
likely to result in a high error-rate, especially in manual curation.
Workaround: Use simple references to an "unknown/potential reference
object" and put a probability on those links => scales with n.
Max Schich
On 2014-03-26 14:26 , martin wrote:
> Dear All,
>
> Here my homework:
>
>
> E91 Co-Reference Assignment
>
> Subclass of:E13 Attribute Assignment
>
> Scope note:This class comprises actions of making the assertion
> whether two or more particular instances of E89 Propositional Object
> refer to the same instance of E1 CRM Entity. The assertion is based on
> the assumption that this was an implicit fact being made explicit by
> this assignment. Use of this class allows for the full description of
> the context of this assignment. (MD will write an extension about the
> levels of belief)
>
> A co-reference assertion may admit a certain degree or strength of
> belief, such as "possibly", "most likely" etc. This can be modelled
> using the property /P2 has type/ with a suitable terminology. However,
> this degree of belief will be common to all statement asserted by one
> instance of E91 Co-Reference Assignment. Otherwise, the assertion must
> be broken down into a suitable number of instances with different
> degrees of belief.
>
> If there exists a document describing particular evidence, this can be
> referred to by using /P used specific object/. There may nothing more
> be known about the instance of E1 CRM Entity to which the described
> statements are assumed to refer to than the facts expressed by these
> very statements.
>
> Frequently, scholars may like to contradict to a co-reference
> statement or point to frequent confusions. This can be modelled using
> the property /P154 <#_P154_assigned_non>//assigned non co-reference to./
>
> The property /P155 <#_P155_has_co-reference>//has co-reference
> target/allows for associating an ???
>
> //
>
>
> In the end, I got confused: The range of P155 can be interpreted as a
> URI used within the same knowledge base as the instance of E91. Then,
> it would correspond to a co-reference between some text element and
> the knowledge base in which we implement the CRM, the "local truth".
> In that case, also one instance of P153 would make sense, even two
> instances of P155 only.
> In case we talk about Linked Open Data, the issue becomes more
> obscure. We could regard the co-reference to be between some text
> element and the document the URI resolves into.
> If however someone uses this very URI in another context, the question
> of co-reference is again there.
>
> It appears as if we need a construct to refer to the use of a URI
> within a knowledge base or RDF document as an instance of
> Propositional Object. If we follow this line, then the interpretation
> of P155 pointing to a "self co-reference" would be consistent, and any
> other
> meaning of referring to a URI would need a contextualization of the
> URI to be discussed.
>
> Opinions?
>
> Best,
>
> Martin
> --
>
> --------------------------------------------------------------
> Dr. Martin Doerr | Vox:+30(2810)391625 |
> Research Director | Fax:+30(2810)391638 |
> | Email:martin at ics.forth.gr |
> |
> Center for Cultural Informatics |
> Information Systems Laboratory |
> Institute of Computer Science |
> Foundation for Research and Technology - Hellas (FORTH) |
> |
> N.Plastira 100, Vassilika Vouton, |
> GR70013 Heraklion,Crete,Greece |
> |
> Web-site:http://www.ics.forth.gr/isl |
> --------------------------------------------------------------
>
>
>
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