7 IR models based on predicate logic
7 IR models based on predicate logic
7 IR models based on predicate logic
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<str<strong>on</strong>g>IR</str<strong>on</strong>g> <str<strong>on</strong>g>models</str<strong>on</strong>g> <str<strong>on</strong>g>based</str<strong>on</strong>g> <strong>on</strong> <strong>predicate</strong> <strong>logic</strong> 9<br />
RDF schemas<br />
similar to semantic networks / descripti<strong>on</strong> <strong>logic</strong>s<br />
describes relati<strong>on</strong>ships between types of resources and/or properties<br />
• fundamental c<strong>on</strong>cepts<br />
– rdfs:Resource<br />
– rdf:Property<br />
– rdfs:Class<br />
• schema definiti<strong>on</strong> c<strong>on</strong>cepts<br />
– rdf:type<br />
– rdfs:subClassOf<br />
– rdfs:subPropertyOf<br />
– rdfs:seeAlso<br />
– rdfs:isDefinedBy<br />
Norbert Fuhr
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