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An Insight-Based Methodology for Evaluating Bioinformatics Visualizations

Published: 01 July 2005 Publication History

Abstract

High-throughput experiments, such as gene expression microarrays in the life sciences, result in very large data sets. In response, a wide variety of visualization tools have been created to facilitate data analysis. A primary purpose of these tools is to provide biologically relevant insight into the data. Typically, visualizations are evaluated in controlled studies that measure user performance on predetermined tasks or using heuristics and expert reviews. To evaluate and rank bioinformatics visualizations based on real-world data analysis scenarios, we developed a more relevant evaluation method that focuses on data insight. This paper presents several characteristics of insight that enabled us to recognize and quantify it in open-ended user tests. Using these characteristics, we evaluated five microarray visualization tools on the amount and types of insight they provide and the time it takes to acquire it. The results of the study guide biologists in selecting a visualization tool based on the type of their microarray data, visualization designers on the key role of user interaction techniques, and evaluators on a new approach for evaluating the effectiveness of visualizations for providing insight. Though we used the method to analyze bioinformatics visualizations, it can be applied to other domains.

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Reviews

Bernice T. Glenn

The authors, whose experience is in bioinformatics and information visualization, work with information that results in very large data sets. Their paper is based on the premise that visualization's key purpose is to gain insight from the data that, in turn, could spark discovery. They consider that visualizations, based on their presentation form, should also have the ability to elicit questions that can lead to new hypotheses, and that seeing something that had passed unnoticed earlier can lead to new discoveries. The authors assert that their method for visualization analysis can also be applied to other domains. Previous visualization evaluations by others have typically focused on predetermined tasks and controlled measurements. Here, the authors propose a procedure that focuses on insights gained by actual explorations of the visuals as presented by a dataset. The questions they asked were: How do various visualization techniques affect how a user perceives the data__?__ Which tool generates the most relevant insight__?__ How successful is the tool in affecting the user's perception of the data__?__ How do visualizations support hypothesis generation__?__ What is the ability of the visualization for suggesting directions for future evaluation__?__ The experiment covered three multidimensional microarray data sets. The visualizations for each tool are described, covering scatter plots, histograms, bar charts, and manipulation of the data through zooming, changing the color ranges, and so on. The following visualization tools were used: Clusterview, TimeSearcher, HCE, Spotfire, and GeneSpring. Thirty test subjects were given a list of questions for each data set, and each participant was given a tool that he or she had not used before. The authors evaluated the average time to first insight for each tool, the amount learned by a participant using a particular tool, and the directed versus unexpected insights that were achieved with each tool for each data set. In this excellently designed study, the authors conclude that their experiment shows promise in measuring insight based on data visualization, but that the work was labor intensive and required domain expertise and motivated participants. They also found that the software design of interaction techniques played an important role in determining the effectiveness of the visualization.

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Published In

cover image IEEE Transactions on Visualization and Computer Graphics
IEEE Transactions on Visualization and Computer Graphics  Volume 11, Issue 4
July 2005
127 pages

Publisher

IEEE Educational Activities Department

United States

Publication History

Published: 01 July 2005

Author Tags

  1. Index Terms- Evaluation/methodology
  2. graphical user interfaces (GUI)
  3. information visualization
  4. visualization systems and software
  5. visualization techniques and methodologies.

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Cited By

View all
  • (2024)Do You See What I See? A Qualitative Study Eliciting High-Level Visualization ComprehensionProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642813(1-26)Online publication date: 11-May-2024
  • (2024)Struggles and Strategies in Understanding Information VisualizationsIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2024.338856030:6(3035-3048)Online publication date: 15-Apr-2024
  • (2024)Designing for Ambiguity in Visual Analytics: Lessons from Risk Assessment and PredictionIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2023.332657130:1(924-933)Online publication date: 1-Jan-2024
  • (2024)On Network Structural and Temporal Encodings: A Space and Time OdysseyIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2023.331001930:8(5847-5860)Online publication date: 1-Aug-2024
  • (2023)Catalogue Visu: a Tool for Fast Visualization PrototypingProceedings of the 34th Conference on l'Interaction Humain-Machine10.1145/3583961.3583969(1-10)Online publication date: 3-Apr-2023
  • (2023)MediCoSpace: Visual Decision-Support for Doctor-Patient Consultations using Medical Concept Spaces from EHRsACM Transactions on Management Information Systems10.1145/356427514:2(1-20)Online publication date: 25-Jan-2023
  • (2023)Troubling Collaboration: Matters of Care for Visualization Design StudyProceedings of the 2023 CHI Conference on Human Factors in Computing Systems10.1145/3544548.3581168(1-15)Online publication date: 19-Apr-2023
  • (2023)Visual Belief Elicitation Reduces the Incidence of False DiscoveryProceedings of the 2023 CHI Conference on Human Factors in Computing Systems10.1145/3544548.3580808(1-17)Online publication date: 19-Apr-2023
  • (2023)What Do We Mean When We Say “Insight”? A Formal Synthesis of Existing TheoryIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2023.332669830:9(6075-6088)Online publication date: 24-Oct-2023
  • (2022)Territoriality in Hybrid CollaborationProceedings of the ACM on Human-Computer Interaction10.1145/35552246:CSCW2(1-37)Online publication date: 11-Nov-2022
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