METHOD FOR VISUALIZING TOPIC EVOLUTION BASED ON TIME AND GEOGRAPHY

摘要

In an approach to spatio-temporal visualization of the evolution of a topic, a computing device receives textual data from one or more sources. The computing device determines, based on semantic analysis, one or more topics of interest associated with the textual data, the location criteria, and the time criteria, wherein semantic analysis comprises merging related topics and splitting unrelated topics. The computing device generates one or more user-navigable visualizations comprising one or more graphs representing occurrences of a topic of interest in a designated geographic area and spanning a designated time window. The computing device displays the one or more user-navigable visualizations and one or more selector tools for designating a geographic area and a time window.