2020 Volume 30 Issue 2 Pages 220-229
While technologies that helps accumulating and utilizing life logs advances, applications that make use of Web browsing history as life logs have not become widespread. This study aims to enhance the value of Web browsing history as life logs by supporting reflection of information gathering behavior. We propose the method of visualization for the information gathering behavior by presentation of Web page contents and browsing process using Web browsing history. In our method, the Web browsing history is presented by combination of the browsing time series and the topics extracted by Web page text with the method of TF-IDF weighting and k-means clustering. In comparison with the existing method, significant effectiveness of the proposed method was not found in reflection of information gathering behavior. In this paper, we discuss and report on approaches for improving the proposed method.