Changeset 1205 for SMC4LRT/Outline.tex


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Timestamp:
04/14/11 10:25:52 (13 years ago)
Author:
vronk
Message:

Expose intermediate (near finished) version

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  • SMC4LRT/Outline.tex

    r1200 r1205  
    207207ontologies conceptualizing the linguistic domain
    208208
    209 They are special in that ("ontologized") Lexicons refere to them to describe linguistic properties of the Lexical Entries, as opposed to linking to Domain Ontologies to anchor Senses/Meanings.
     209They are special in that ("ontologized") Lexicons refer to them to describe linguistic properties of the Lexical Entries, as opposed to linking to Domain Ontologies to anchor Senses/Meanings.
    210210Lexicalized Ontologies: LingInfo, lemon: LMF +  isocat/GOLD +  Domain Ontology
     211
     212a) as domain ontologies, describing aspects of the Resources\\
     213b) as linguistic ontologies enriching the Lexicalization of Concepts
     214
     215Ontology and Lexicon \cite{Hirst2009}
     216
     217LingInfo/Lemon \cite{Buitelaar2009}
     218
     219We shouldn't need linguistic ontologies (LingInfo, LEmon), they are primarily relevant in the task of ontology population from texts, where the entities can be encountered in various word-forms in the context of the text.
     220(Ontology Learning, Ontology-based Semantic Annotation of Text)
     221And we are dealing with highly structured data with referenced in their nominal(?) form.
    211222
    212223Another special case are Controlled Vocabularies or Taxonomies/Classification Systems, let alone folksonomies, in that they identify terms and concepts/meanings, ie there is no explicit mapping between the language represenation and the concept, but rather the term is implicit carrier of the meaning/concept.
     
    215226controlled vocabularies?
    216227
    217 Ontology and Lexicon \cite{Hirst2009}
    218 
    219 LingInfo/Lemon \cite{Buitelaar2009}
    220228
    221229
     
    353361\end{itemize}
    354362
     363A trivial example for a concept-based query expansion:
     364Confronted with a user query: \texttt{Actor.Name = Sue} and knowing that \texttt{Actor} is equivalent or similar to \texttt{Person} and \texttt{Name} is synonym to \texttt{FullName} the expanded query could look like:
     365\texttt{Actor.Name = Sue OR Actor.FullName = Sue OR Person.Name =  Sue OR Person.FullName= is Sue}
     366
     367Another example concerning instance mapping: the user looking for all resource produced by or linked to a given institution, does not have to guess or care for various spellings of the name of the institution used in the description of the resources, but rather can browse through a controlled vocabulary of institutions and see all the resources of given institution. While this could be achieved by simple normalizing of the literal-values (and indeed that definitely has to be one processing step), the linking to an ontology, enables to user to also continue browsing the ontology to find institutions that are related to the original institution by means of being concerned with similar topics and retrieve a union of resources for such resulting cluster. Thus in general the user is enabled to work with the data based on information that is not present in the original dataset.
     368
    355369\section{Semantic Mapping}
    356370
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