1 results about "Keyword extraction" patented technology

The invention provides a value calculation method and device for an application program. The method comprises: obtaining description information of the application program and comment information of auser from an application program website; extracting keywords from the description information and the comment information through a keyword extraction algorithm; respectively converting the keywordsand preset value vocabularies into word vectors with semantic features by using a word embedding Word2vec model, calculating the similarity between the keywords and the value vocabularies through cosine similarity, and constructing a similarity matrix of the keywords and the value vocabularies; and according to the similarity matrix of the keywords and the value vocabularies, calculating the probability of the value of the application program through a naive Bayes algorithm, and scaling the probability of the value of the application program into a value score. The word embedding Word2Vec algorithm is adopted, so that the problem of measurement of similarity among vocabularies is solved; and based on the naive Bayesian algorithm, obtaining the mapping relationship between the applicationprogram and the value category.