“…Hence, this paper adopts a manual approach to screen official websites to collect the After acquiring the original corpus, it is of great importance to firstly conduct data processing, i.e. text pre-processing, which includes word cut, removing stopwords, information cleaning and merging, etc., before carrying out the mining of the intrinsic information of the text [11]. In this paper, we employ word frequency analysis, keyword extraction, and LDA topic modelling to mine the intrinsic information of the text, extract key indicator variables, and refer to relevant references to construct a rather rigorous review system for pharmaceutical policies.…”