Knowledge graph based on mixed database and construction method thereof
A knowledge map and construction method technology, applied in the direction of database model, database index, relational database, etc., can solve the problems of low knowledge reasoning support, complex structure, difficult to realize ordinary data table management, etc., to improve processing efficiency and search efficiency Fast and convenient to add, delete, check and modify the effect
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[0031] Taking the construction of electromechanical equipment knowledge map as an example, the construction flow chart is as follows: figure 1 shown, including the following steps:
[0032] Step 1: Build the data storage layer: first format the data of the electromechanical system information, and convert it into a json format through entity extraction, relationship extraction, and attribute extraction, that is, extract entities and relationships from the database table through three extraction methods Knowledge elements such as attributes and attributes, and through knowledge fusion, remove the ambiguity between entity referents and entity objects, obtain a series of basic model relationship expressions, use numbers, labels, and attributes to describe, obtain structured information, and store into a relational database;
[0033] Step 2: Build the data storage layer synchronization layer: based on the resource description framework (RDF) principle, the structured information ...
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