With the development of the internet,electronic text is booming.These text resources,especially scientific journal papers,contain rich semantic and linked information.How to demonstrate the core topics quickly and accurately to assist researchers and improve research efficiency has been an urgent issue in text mining.Nodes and edges of graph can represent terms and their relations of texts,so many researchers tried to combine graph mining with natural language processing With the development of the internet, electronic text is booming. The text resources, especially scientific journal papers, contain rich semantic and linked information. How to the core topics quickly and accurately to assist researchers and improve research efficiency has been an urgent issue in text mining.Nodes and edges of graph can represent terms and their relations of texts, so many researchers tried to combine graph mining with natural language processing