AnnotatedTimeTree: Visualization and annotation of news text and other heterogeneous document collections

Investigation of critical events requires dealing with heterogeneous document collections, and is usually done case by case. We address the case of VAST Challenge 2014 Mini-Challenge 1 with the two views of our AnnotatedTimeTree system: the document view and the GAStech view. The document view is a novel AnnotatedTimeTree design for current and historical news reports in Kronos; and the GAStech view is implemented specifically for GAStech employee profiles and email activities. Together the two views facilitate rapid summarization of both crucial events in Kronos history and GAStech employees in Mini Challenge 1. The AnnotatedTimeTree design provides semantic interactions such as searching, highlighting, annotating and expanding for maintaining reasoning process and reasoning results to the documents.