Data mining based text data network construction system

The invention discloses a data mining based text data network construction system. The system comprises a data collection module, a data mining module, a social network construction module, a visual display module and a database, wherein the data collection module receives newly added text data, and performs word segmentation on the text data sequentially; the data mining module extracts an eigenvalue of the newly added text data subjected to the word segmentation in the database, compares the newly added text data with stored text data subjected to eigenvalue extraction in the database, and performs association mapping on data with an eigenvalue closest to the eigenvalue of the newly added data; the social network construction module constructs a file by taking a sender of the text data received by the data collection module as a file name and taking a newly added text data name, a name of the data subjected to the association mapping and a sender of data corresponding to the data subjected to the association mapping as file attributes, and forms a social network ontology library; and a visual display module analyzes data corresponding to the file, and performs display in a manner of line segments or nodes.