Search For:

Displaying 1-19 out of 19 total
Dis-function: Learning distance functions interactively
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Eli T. Brown,Jingjing Liu,Carla E. Brodley,Remco Chang
Issue Date:October 2012
pp. 83-92
The world's corpora of data grow in size and complexity every day, making it increasingly difficult for experts to make sense out of their data. Although machine learning offers algorithms for finding patterns in data automatically, they often require algo...
 
Priming Locus of Control to affect performance
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Alvitta Ottley,R. Jordan Crouser,Caroline Ziemkiewicz,Remco Chang
Issue Date:October 2012
pp. 237-238
Recent research suggests that the personality trait Locus of Control (LOC) can be a reliable predictor of performance when learning a new visualization tool. While these results are compelling and have direct implications to visualization design, the relat...
 
Optimizing an SPT-tree for visual analytics
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Connor Gramazio,Remco Chang
Issue Date:October 2012
pp. 219-220
Despite the extensive work done in the scientific visualization community on the creation and optimization of spatial data structures, there has been little adaptation of these structures in visual analytics and information visualization. In this work we p...
 
Interactive Coordinated Multiple-View Visualization of Biomechanical Motion Data
Found in: IEEE Transactions on Visualization and Computer Graphics
By Daniel Keefe, Marcus Ewert, William Ribarsky, Remco Chang
Issue Date:November 2009
pp. 1383-1390
We present an interactive framework for exploring space-time and form-function relationships in experimentally collected high-resolution biomechanical data sets. These data describe complex 3D motions (e.g. chewing, walking, flying) performed by animals an...
 
Exploring the impact of emotion on visual judgement
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Lane Harrison,Remco Chang,Aidong Lu
Issue Date:October 2012
pp. 227-228
Existing research suggests that individual personality differences can influence performance with visualizations. In addition to stable traits such as locus of control, research in psychology has found that temporary changes in affect (emotion) can signifi...
 
Recovering Reasoning Processes from User Interactions
Found in: IEEE Computer Graphics and Applications
By Wenwen Dou, Dong Hyun Jeong, Felesia Stukes, William Ribarsky, Heather Richter Lipford, Remco Chang
Issue Date:May 2009
pp. 52-61
Understanding how analysts use visual-analytics (VA) tools can help reveal their reasoning processes when using these tools. By examining analysts' interaction logs, the authors identified the analysts' strategies, methods, and findings when using a financ...
 
Defining Insight for Visual Analytics
Found in: IEEE Computer Graphics and Applications
By Remco Chang, Caroline Ziemkiewicz, Tera Marie Green, William Ribarsky
Issue Date:March 2009
pp. 14-17
Many have proposed that the goal of visualization is insight. However, few rigorous definitions of insight exist in the visualization community, and none have been commonly accepted. We propose that two types of insight are relevant to the visualization co...
 
WireVis: Visualization of Categorical, Time-Varying Data From Financial Transactions
Found in: Symposium On Visual Analytics Science And Technology
By Remco Chang, Mohammad Ghoniem, Robert Kosara, William Ribarsky, Jing Yang, Evan Suma, Caroline Ziemkiewicz, Daniel Kern, Agus Sudjianto
Issue Date:November 2007
pp. 155-162
Large financial institutions such as Bank of America handle hundreds of thousands of wire transactions per day. Although most transactions are legitimate, these institutions have legal and financial obligations in discovering those that are suspicious. Wit...
 
Finding Waldo: Learning about Users from their Interactions
Found in: IEEE Transactions on Visualization and Computer Graphics
By Eli T. Brown,Alvitta Ottley,Helen Zhao,Quan Lin,Richard Souvenir,Alex Endert,Remco Chang
Issue Date:February 2015
pp. 1
Visual analytics is inherently a collaboration between human and computer. However, in current visual analytics systems, the computer has limited means of knowing about its users and their analysis processes. While existing research has shown that a user’s...
 
Multi-Focused Geospatial Analysis Using Probes
Found in: IEEE Transactions on Visualization and Computer Graphics
By Thomas Butkiewicz, Wenwen Dou, Zachary Wartell, William Ribarsky, Remco Chang
Issue Date:November 2008
pp. 1165-1172
Traditional geospatial information visualizations often present views that restrict the user to a single perspective. When zoomed out, local trends and anomalies become suppressed and lost; when zoomed in for local inspection, spatial awareness and compari...
 
Legible Cities: Focus-Dependent Multi-Resolution Visualization of Urban Relationships
Found in: IEEE Transactions on Visualization and Computer Graphics
By Remco Chang,G. Wessel,R. Kosara,E. Sauda,W. Ribarsky
Issue Date:November 2007
pp. 1169-1175
Numerous systems have been developed to display large collections of data for urban contexts; however, most have focused on layering of single dimensions of data and manual calculations to understand relationships within the urban environment. Furthermore,...
 
Influencing visual judgment through affective priming
Found in: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13)
By Aidong Lu, Drew Skau, Lane Harrison, Remco Chang, Steven Franconeri
Issue Date:April 2013
pp. 2949-2958
Recent research suggests that individual personality differences can influence performance with visualizations. In addition to stable personality traits, research in psychology has found that temporary changes in affect (emotion) can also significantly imp...
     
Using fNIRS brain sensing to evaluate information visualization interfaces
Found in: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems (CHI '13)
By Alvitta Ottley, Beste F. Yuksel, Evan M M. Peck, Remco Chang, Robert J.K. Jacob
Issue Date:April 2013
pp. 473-482
We show how brain sensing can lend insight to the evaluation of visual interfaces and establish a role for fNIRS in visualization. Research suggests that the evaluation of visual design benefits by going beyond performance measures or questionnaires to mea...
     
Towards a 3-dimensional model of individual cognitive differences: position paper
Found in: Proceedings of the 2012 BELIV Workshop: Beyond Time and Errors - Novel Evaluation Methods for Visualization (BELIV '12)
By Alvitta Ottley, Beste F Yuksel, Evan M Peck, Lane Harrison, Remco Chang
Issue Date:October 2012
pp. 1-6
The effects of individual differences on user interaction is a topic that has been explored for the last 25 years in HCI. Recently, the importance of this subject has been carried into the field of information visualization and consequently, there has been...
     
Analytic provenance: process+interaction+insight
Found in: Proceedings of the 2011 annual conference extended abstracts on Human factors in computing systems (CHI EA '11)
By Alex Endert, Bill Pike, Chris North, Glenn Fink, Remco Chang, Richard May, Wenwen Dou
Issue Date:May 2011
pp. 33-36
Visual analytics is the science of analytical reasoning facilitated by interactive visual interfaces. One key aspect that separates visual analytics from other related fields (InfoVis, SciVis, HCI) is the focus on analytical reasoning. While the final prod...
     
GPS and road map navigation: the case for a spatial framework for semantic information
Found in: Proceedings of the International Conference on Advanced Visual Interfaces (AVI '10)
By Caroline Ziemkiewicz, Eric Sauda, Ginette Wessel, Remco Chang
Issue Date:May 2010
pp. 207-214
Urban environments require cognitive abilities focused on both spatial overview and detailed understanding of uses and places. These abilities are distinct but overlap and reinforce each other. Our work quantitatively and qualitatively measures the effects...
     
Learning-based evaluation of visual analytic systems
Found in: Proceedings of the 3rd BELIV'10 Workshop: BEyond time and errors: novel evaLuation methods for Information Visualization (BELIV '10)
By Remco Chang, William Ribarsky, Caroline Ziemkiewicz, Joseph Kielman, Roman Pyzh
Issue Date:April 2010
pp. 29-34
Evaluation in visualization remains a difficult problem because of the unique constraints and opportunities inherent to visualization use. While many potentially useful methodologies have been proposed, there remain significant gaps in assessing the value ...
     
Hierarchical simplification of city models to maintain urban legibility
Found in: ACM SIGGRAPH 2006 Sketches (SIGGRAPH '06)
By Caroline Ziemkiewicz, Nancy Pollard, Remco Chang, Thomas Butkiewicz, William Ribarsky, Zachary Wartell
Issue Date:July 2006
pp. 130-es
We describe a new method for computing dimensions of boxes from single perspective projection images in real time. We demonstrate the proposed approach by building a scanner and using it to compute dimensions of real boxes. This can be a useful tool for co...
     
Hierarchical simplification of city models to maintain urban legibility
Found in: Material presented at the ACM SIGGRAPH 2006 conference (SIGGRAPH '06)
By Caroline Ziemkiewicz, Nancy Pollard, Remco Chang, Thomas Butkiewicz, William Ribarsky, Zachary Wartell
Issue Date:July 2006
pp. 130-es
We describe a new method for computing dimensions of boxes from single perspective projection images in real time. We demonstrate the proposed approach by building a scanner and using it to compute dimensions of real boxes. This can be a useful tool for co...
     
 1