Title
An Evaluation Of Methods For Encoding Multiple, 2d Spatial Data
Abstract
Datasets over a spatial domain are common in a number of fields, often with multiple layers (or variables) within data that must be understood together via spatial locality. Thus one area of long-standing interest is increasing the number of variables encoded by properties of the visualization. A number of properties have been demonstrated and/or proven successful with specific tasks or data, but there has been relatively little work comparing the utility of diverse techniques for multi-layer visualization. As part of our efforts to evaluate the applicability of such visualizations, we implemented five techniques which represent a broad range of existing research (Color Blending, Oriented Slivers, Data-Driven Spots, Brush Strokes, and Stick Figures). Then we conducted a user study wherein subjects were presented with composites of three, four, and five layers (variables) using one of these methods and asked to perform a task common to our intended end users (GIS analysts). We found that the Oriented Slivers and Data-Driven Spots performed the best, with Stick Figures yielding the lowest accuracy. Through analyzing our data, we hope to gain insight into which techniques merit further exploration and offer promise for visualization of data sets with ever-increasing size.
Year
DOI
Venue
2011
10.1117/12.872576
VISUALIZATION AND DATA ANALYSIS 2011
Keywords
Field
DocType
Multi-variate visualization, scalar fields, spatial surfaces, glyphs, color encoding, user study
Glyph,Spatial analysis,Computer vision,Geographic information system,Locality,Data visualization,Data set,Visualization,Computer science,Optics,Artificial intelligence,Encoding (memory)
Conference
Volume
ISSN
Citations 
7868
0277-786X
7
PageRank 
References 
Authors
0.52
10
3
Name
Order
Citations
PageRank
Mark A. Livingston139933.58
Jonathan W. Decker2717.60
Zhuming Ai312413.15