... three new features to PRISM: showing a past heat map, showing a heat map focused on specified type of incidents and showing statistics of incidents for every type. Using these features, the authors visualize the dynamic transition of street crimes in a specific area and the whole region within Kobe city...

...Hokuto Ototake; Hiroki Sakaji; Keiichi Takamaru; Akio Kobayashi; Yuzu Uchida; Yasutomo Kimura Purpose This paper aims to propose a Web-based system for visualizing local politics in Japan. Although many local governments in Japan provide public access to political documents, researchers...