PPT Slide

Information Retrieval Techniques

• Knowledge annotation by use of CGs (Conceptual Graphs)

Advantages:

• general knowledge representation language to represent semantic content

• intuitive, combinable set of commands easy to use

• equivalent to first-order logic

• independent from any notation

• not all terms have to be declared

• indexing of any element (image)

• human-readable form

Ontology proposed: top-level ontology

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