METHOD AND SYSTEM FOR RETRIEVING NETWORK NODE

摘要

PROBLEM TO BE SOLVED: To provide a network node retrieval method by which an optional node or ark in a network can retrieve a specific node at a high-speed on the basis of network data describing the structure of the network consisting of nodes and arks interconnecting the nodes through computer processing. SOLUTION: Network data have node data Dn provided with connection information for each node Ni with respect to a node and all nodes connected to the node via arks and with node attribute information by which whether or not a node is a specific node can be discriminated. The network node retrieval method includes the retrieval processing where all nodes or arks existing on a path from a start node at which the retrieval is started or a start ark at which the retrieval is started until all specific nodes being retrieval objects are extracted on the basis of the connection information, and the node attribute information of the node data Dn and the specific node is retrieved by using the extracted nodes or arks for objects.