Research on potential patent partnership based on link prediction
Inventor cooperation is one of the obvious manifestations of patent cooperation.By building a cooperation network and digging out potential cooperation relationships,it is helpful to predict the future cooperation trend of in-ventors in the patent cooperation network.Considering the location information and attribute information of coopera-tive network nodes,first,the link prediction method in social network is introduced to calculate the similarity of node locations;then,the inventor's research direction is used as the attribute information of nodes,and Doc2vec and TF-IDF are used respectively.Establish the vector coupling matrix of research directions,calculate the cosine similarity between the inventors'research directions,and measure the similarity of the inventors research directions;finally,construct a hybrid algorithm based on the link prediction algorithm and the inventor's research direction,so as to predict the inventors potential partnership.Empirical research in the field of domestic knowledge graph found that TF-IDF has a better prediction effect in this field,and based on the link prediction algorithm,the prediction accura-cy has been improved by incorporating the research direction similarity matrix.
万方数据
维普
