ahlberg94visual - Visual Information Seeking: Tight...

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Unformatted text preview: Visual Information Seeking: Tight Coupling of Dynamic Query Filters with Starfield Displays Christopher Ahlberg * and Ben Shneiderman Department of Computer Science, Human-Computer Interaction Laboratory & Institute for Systems Research University of Maryland, College Park, MD 20742 email: ahlberg@cs.chalmers.se, ben @cs.umd.edu ABSTRACT This paper offers new principles for visual information seeking (VIS). A key concept is to support browsing, which is distinguished from familiar query composition and information retrieval because of its emphasis on rapid filtering to reduce result sets, progressive refinement of search parameters, continuous reformulation of goals, and visual scanning to identify results. VIS principles developed include: dynamic query filters (query parameters are rapidly adjusted with sliders, buttons, maps, etc.), starfield displays (two-dimensional scatterplots to structure result sets and zooming to reduce clutter), and tight coupling (interrelating query components to preserve display invariants and support progressive refinement combined with an emphasis on using search output to foster search input). A FilmFinder prototype using a movie database demonstrates these principles in a VIS environment. KEYWORDS: database query, dynamic queries, information seeking, tight coupling, starfield displays INTRODUCTION In studying visual information seeking (VIS) systems for expert and first time users, we have found several user interface design principles that consistently lead to high levels of satisfaction. This paper defines these principles and presents a novel VIS system, the FilmFinder. The exploration of large information spaces has remained a challenging task even as parallel hardware architectures, high-bandwidth network connections, large high-speed disks, and modern database management systems have proliferated. Indeed, these advances have left many users with the feeling that they are falling further behind and cannot cope with * Current address: Dept. of Computer Science, Chalmers University of Technology, S-412 96 Gteborg, Sweden the flood of information [3, 18]. Now, the user interface design principles for VIS have the potential to reduce our anxiety about the flood, find needles in haystacks, support exploratory browsing to develop intuition, find patterns and exceptions, and even make browsing fun. The key to these principles is understanding the enormous capacity for human visual information processing. By presenting information visually and allowing dynamic user control through direct manipulation principles, it is possible to traverse large information spaces and facilitate comprehension with reduced anxiety [14,16]. In a few tenths of a second, humans can recognize features in mega- pixel displays, recall related images, and identify anomalies....
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This note was uploaded on 02/13/2012 for the course CS 91.510 taught by Professor Staff during the Fall '09 term at UMass Lowell.

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ahlberg94visual - Visual Information Seeking: Tight...

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