Urban knowledge archive construction method and system based on urban brain

The invention provides a city knowledge archive construction method and system based on a city brain, and is applied to the technical field of data processing, and the method comprises the steps: obtaining and collecting archive information of different regions of a city region; according to the collected archive information, an archive knowledge base is constructed, and the archive knowledge base is provided with a knowledge graph topological structure. And traversing the knowledge graph topological structure to obtain a node cluster. And traversing the node cluster to perform importance evaluation to obtain an importance set. And performing weight distribution on the node cluster according to the importance degree set to obtain a weight distribution result. And adjusting the archive knowledge base according to the weight distribution result to obtain the adjusted archive knowledge base. The technical problem that in the prior art, only data of all dimensions are simply collected, sorted and stored, the prep