Automatic text processing
Information retrieval
The process of knowledge discovery in databases
Advances in knowledge discovery and data mining
ThemeRiver: Visualizing Thematic Changes in Large Document Collections
IEEE Transactions on Visualization and Computer Graphics
Mining Open Answers in Questionnaire Data
IEEE Intelligent Systems
Trend Graphs: Visualizing the Evolution of Concept Relationships in Large Document Collections
PKDD '98 Proceedings of the Second European Symposium on Principles of Data Mining and Knowledge Discovery
FACT-Graph: Trend Visualization by Frequency and Co-occurrence
KI '08 Proceedings of the 31st annual German conference on Advances in Artificial Intelligence
Comparison analysis for text data by using FACT-graph
HCII'11 Proceedings of the 1st international conference on Human interface and the management of information: interacting with information - Volume Part II
KES'11 Proceedings of the 15th international conference on Knowledge-based and intelligent information and engineering systems - Volume Part IV
International Journal of Knowledge-based and Intelligent Engineering Systems - Selected papers of KES2012-Part 2 of 2
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This article proposes text mining software to analyze FACT-Graph, and describes a case study using the software. FACT-Graph is a trend graph which visualizes what kinds of topic exist and shows the changes in trends in time-series text data. However, FACT-Graph itself does not have enough environments to analyze trends although it provides clues for a trend. In order to resolve this problem, we developed the software called Loopo. This software provides the functions of adding the considerations of the analyst as the keywords, and operating FACT-Graph itself such as moving, adding, and clearing nodes. The system also allows analysts to refer to an information source, keyword information, and network information in order to analyze and consider FACT-Graph. In a case study about criminal trends using the titles of newspaper articles between 1987 and 2007, we confirmed the usability of this software.