Abstract:In order to grasp the core technology in its field, accurately and efficiently study and judge technological opportunities, a core technology topic and innovation opportunity identification method based on LDA-SNA and multi-dimensional space patent map is proposed. First, LDA-SNA method was used to extract technical topic elements and screen core technical topics; Secondly, the core technology topic elements are dimensioned, and the innovation rules are selected to generate the technology innovation opportunities based on the core technology topics according to principle of dimension-method coupling. Finally, taking titanium dioxide slurry preparation technology as an example, 1962 patents were retrieved and collected as a data set. The research results identify six core technology topics and seven innovation opportunities, verify the feasibility of this method, and provide a reference basis for decision-making for related enterprises to identify technology opportunities to carry out technological innovation efficiently.