Patent Document ID: 8661041
Application ID: 12968777

Base Claim:
1. A semantic-based searching apparatus comprising: a storage unit configured to store: an associative search structure previously defined to obtain a final search object in response to an input search query, and semantic metadata which is stored in conformity with a semantic index configuration that includes a feature metadata index including a keyword and an inverted index used to identify a specific object, a semantic entity metadata index to indicate semantic entities corresponding to the keyword, and a semantic relation metadata index to indicate a relation between the semantic entities; and a control unit configured to generate a search result corresponding to the final search object in response to the input search query using the semantic metadata and the associative search structure.

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Claim 4:
4. The semantic-based searching apparatus of claim 1 , wherein in the semantic index configuration, the feature metadata index, the semantic entity metadata index, and the semantic relation metadata index are configured in such a manner that cross-referencing can be performed between the indices.