Abstract: We use the Wikipedia backup database to build the concept semantic network in the field automatically, providing the technical basis for intelligent retrieval of the field information. After downloading, analyzing, filtering the Wikipedia backup database, with the network technology discipline as the field of study, we use the entry data in the Wikipedia database, design algorithms to extract all of the concepts in the field of network technology. We extract synonymous and superior-subordinate relationship between the concepts by using of the classification data, links data and redirects data in Wikipedia database. Finally,  the concept semantic network of the network technology field is formed by collecting the concepts and the relationships between them.
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