A semantic approximate query method for RDF knowledge map
A technology of knowledge graph and query method, which is applied in the field of semantic approximate query oriented to RDF knowledge graph, and can solve problems such as query accuracy and performance.
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[0042] The following examples are used in conjunction with the drawings to demonstrate the specific implementation of the present invention. The overall system architecture of the present invention is as figure 1 As shown, each stage is processed in sequence as follows:
[0043] Step 1: Offline corpus generation and training stage.
[0044] This stage includes transforming the RDF knowledge graph into a trainable text corpus, and using the text embedding model to perform context-sensitive semantic learning on the text corpus to train the semantic vectors of entities and predicates. It mainly includes the following three steps:
[0045] Step 1.1: Entity division
[0046] For the entire English wiki library ( https: / / www.wikipedia.org / ) RDF knowledge graph, according to the type of entity, entities of the same type are gathered into one category, and all entities in the RDF knowledge graph are divided into n entity sets E={E k |1≤k≤n,k∈N}, where each entity set E k Contains m entit...
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