2results about How to "Eliminate redundant data" patented technology

The application provides a knowledge graph construction system and method based on a relational database, comprising a database connection module, a knowledge graph construction module and a graph editing and display module, based on form structure analysis, form association relationship identification and analysis and form basic item acquisition of the relational database, realizing graph construction and fusion integration of the relational database; based on graph visualization display, graph entity editing, graph entity relationship editing and graph extraction information configuration, realizing graph editing and display capability. The application supports graph construction of multiple data sources, breaks data islands, carries out multi-element combination of data, provides a combined information analysis basis for users, provides entity fusion integration capability, effectively improves graph availability and eliminates redundant data.

This invention discloses a rapid method for constructing semantic electronic maps based on geographic entities, comprising: determining the entity category of each element in the basic surveying and mapping data of the area to be constructed based on a multi-level classification framework, and lightweight compressing the basic surveying and mapping data of each element; converting the geometric surveying and mapping data and attribute information of the elements into geographic entity geometry and geographic entity attributes according to the geometric mapping and attribute mapping relationships of the elements, constructing multi-dimensional semantic relationships of entities, and obtaining two-dimensional geographic entities; selecting a three-dimensional transformation method according to the type of the two-dimensional geographic entity to convert the two-dimensional geographic entity into a three-dimensional geographic entity; performing conflict detection on the generated three-dimensional geographic entity model, and handling the conflict of elements, correcting the corresponding three-dimensional geographic entities to ensure the reliability and accuracy of the constructed three-dimensional geographic entities; and finally constructing a three-dimensional electronic map based on the three-dimensional geographic entities of all elements.