PPT Slide

• Lexicon-enhanced indexing (e.g., UMLS Specialist Lexicon)

• Ontology-enhanced semantic tagging (e.g., UMLS Semantic Nets)

• Ontology-enhanced query expansion (e.g., WordNet, UMLS Metathesaurus)

Integration of CL:

• Spreading-activation based term suggestion (e.g., Hopfield net)

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