CSC News

September 16, 2014

SAS Supports Healey’s Research on Text Analytics and Information Visualization

Dr. Christopher Healey, professor of computer science at NC State University, has been awarded $91,749 by SAS Institute to support his research proposal entitled “Modeling Context and Sentiment to Visualize Narrative Threads in Large Document Collections.”
The award will run from August 16, 2014 to August 15, 2015. 
Abstract – This project will investigate the use of text analytics and information visualization for analyzing, visualizing, and exploring large document collections. Text will be analyzed using a combination of SAS Text Miner and new algorithms designed to identify, structure, and associate context, sentiment, and other properties in a document collection. Results will be segmented into narrative threads that identify conceptual storylines within the document collection. Threads will be visualized using two approaches: node-link graphs and adjacency matrices. For the graphs, graph analysis algorithms will be studied to determine methods to derive useful metrics and summaries on the document collection. For the adjacency matrices, algorithms will be developed to order of rows and columns in ways that expose patters in the document collection. For both visualization techniques, issues of multivariate data representation and level-of-detail hierarchies will also be considered.
For more information on Dr. Healey, click here.

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