Semantic Information Detection of Webpage Based on Word Vector and Infomap

Abstract

For Chinese web pages, we use regular expression and Viterbi algorithm to realize Chinese filtering and word segmentation, then use ngram2vec algorithm to get the word vector set of web page and pre train the word vector set of Baidu Encyclopedia. Baidu Encyclopedia word vector set is based on Infomap clustering algorithm to realize word vector Clustering and tagging types, training neural network through training data set and Baidu Encyclopedia corpus to determine the type of unknown web pages through neural network, and achieve the purpose of detecting the semantic information of unknown web pages. This algorithm is has few super parameters and high calculation efficiency. Experiments show that the accuracy of the trained neural network model reaches 96.73%, which can quickly and accurately identify the type of web page.