Thursday, February 19, 2009

Paper accepted at the SAIS 2009 Conference

Paper Title: Information Extraction From Different Data Representation Forms: Charts and Tables

Presenting data in the form of graphs and tables has long been considered as an important tool for decision making. Extracting information from these presentation forms are considered to be cognitively intensive tasks. Prior research works on aspects of presentation forms have produced inconsistent and conflicting results. In this study, we examine effects of tabular and graphical (bar, line, and pie) forms on information extraction. Graphs were examined with solid and textured patterns as well. We conducted a laboratory experiment where in subjects answered set of questions which would require them to extract information from the presentation display. Our study reveals that tables, even though they have higher response rate, produced more accurate results than graphs. Comparison within graphs showed that bar charts had a lower response rate than pie and line charts, while pie charts produced the least accurate results. Comparison of solid and textured patterns in graphs revealed that they are not an influencing factor in regards to information extraction. We also provide detailed comparison of current research findings against to prior research results.

Authors: Janice M. Engberg, Karthikeyan Umapathy, and F. Layne Wallace

Conference Link: