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Displaying 1-50 out of 51 total
Towards a Visual Analytics Framework for Handling Complex Business Processes
Found in: 2014 47th Hawaii International Conference on System Sciences (HICSS)
By William Ribarsky,Derek Xiaoyu Wang,Wenwen Dou,William J. Tolone
Issue Date:January 2014
pp. 1374-1383
Organizing data that can come from anywhere in the complex business process in a variety of types is a challenging task. To tackle the challenge, we introduce the concepts of virtual sensors and process events. In addition, a visual interface is presented ...
   
Third-Person Navigation of Whole-Planet Terrain in a Head-tracked Stereoscopic Environment
Found in: Virtual Reality Conference, IEEE
By Zachary Wartell, William Ribarsky, Larry Hodges
Issue Date:March 1999
pp. 141
Navigation and interaction in virtual environments that use stereoscopic head-tracked displays and have very large data sets present several challenges beyond those encountered with smaller data sets and simpler displays. First, zooming by approaching or r...
 
VASA: Interactive Computational Steering of Large Asynchronous Simulation Pipelines for Societal Infrastructure
Found in: IEEE Transactions on Visualization and Computer Graphics
By Sungahn Ko,Jieqiong Zhao,Jing Xia,Shehzad Afzal,Xiaoyu Wang,Greg Abram,Niklas Elmqvist,Len Kne,David Van Riper,Kelly Gaither,Shaun Kennedy,William Tolone,William Ribarsky,David S. Ebert
Issue Date:February 2015
pp. 1
We present VASA, a visual analytics platform consisting of a desktop application, a component model, and a suite of distributed simulation components for modeling the impact of societal threats such as weather, food contamination, and traffic on critical i...
 
HierarchicalTopics: Visually Exploring Large Text Collections Using Topic Hierarchies
Found in: IEEE Transactions on Visualization and Computer Graphics
By Wenwen Dou,Li Yu,Xiaoyu Wang,Zhiqiang Ma,William Ribarsky
Issue Date:December 2013
pp. 2002-2011
Analyzing large textual collections has become increasingly challenging given the size of the data available and the rate that more data is being generated. Topic-based text summarization methods coupled with interactive visualizations have presented promi...
 
The Whole Story: Building the Complete History of a Place
Found in: Hawaii International Conference on System Sciences
By William Ribarsky,Eric Sauda,Zachary Wartell,Jeffery Balmer
Issue Date:January 2012
pp. 1864-1873
In this paper, we discuss how one can build a visual analytics system to comprehensively describe a place throughout its many interconnected histories. We discuss the needed 4D data structure, the analytics techniques, and the interactive visualizations. T...
   
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...
 
Guest Editorial: Special Issue on Haptics, Virtual, and Augmented Reality
Found in: IEEE Transactions on Visualization and Computer Graphics
By Grigore C. Burdea, Ming C. Lin, William Ribarsky, Benjamin Watson
Issue Date:November 2005
pp. 611-613
Guest Editorial: Special Issue on Haptics, Virtual, and Augmented Reality
 
Toward Spontaneous Interaction with the Perceptive Workbench
Found in: IEEE Computer Graphics and Applications
By Bastian Leibe, Thad Starner, William Ribarsky, Zachary Wartell, David Krum, Justin Weeks, Bradley Singletary, Larry Hodges
Issue Date:November 2000
pp. 54-65
The Perceptive Workbench works toward a spontaneous and unimpeded interface between the physical and virtual worlds. Its vision-based methods for interaction eliminate the need for wired input devices and wired tracking.
 
Real-Time Visualization of Scalably Large Collections of Heterogeneous Objects
Found in: Visualization Conference, IEEE
By Douglass Davis, William Ribarsky, T.Y. Jiang, Nickolas Faust, Sean Ho
Issue Date:October 1999
pp. 45
This paper presents results for real-time visualization of out-of-core collections of 3D objects. This is a significant extension of previous methods and shows the generality of hierarchical paging procedures applied both to global terrain and any objects ...
 
Intent, Perception, and Out-of-Core Visualization Applied to Terrain
Found in: Visualization Conference, IEEE
By Douglass Davis, T. Y. Jiang, William Ribarsky, Nickolas Faust
Issue Date:October 1998
pp. 455
This paper considers how out-of-core visualization applies to terrain datasets, which are among the largest now presented for interactive visualization and can range to sizes of 20 GB and more. It is found that a combination of out-of-core visualization, w...
 
Glyphmaker: Creating Customized Visualizations of Complex Data
Found in: Computer
By William Ribarsky, Eric Ayers, John Eble, Sougata Mukherjea
Issue Date:July 1994
pp. 57-64
<p>Glyphmaker allows nonexpert users to customize their own graphical representations using a simple glyph editor and a point-and-click binding mechanism. In particular, users can create and then alter bindings to visual representations, bring in new...
 
LeadLine: Interactive visual analysis of text data through event identification and exploration
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Wenwen Dou,Xiaoyu Wang,Drew Skau,William Ribarsky,Michelle X. Zhou
Issue Date:October 2012
pp. 93-102
Text data such as online news and microblogs bear valuable insights regarding important events and responses to such events. Events are inherently temporal, evolving over time. Existing visual text analysis systems have provided temporal views of changes b...
 
Evaluating depth perception of volumetric data in semi-immersive VR
Found in: Virtual Reality Conference, IEEE
By Isaac Cho,Wenwen Dou,Zachary Wartell,William Ribarsky,Xiaoyu Wang
Issue Date:March 2012
pp. 95-96
Displays supporting stereopsis and head location based motion parallax can enhance human perception of complex three dimensional datasets. This has been demonstrated for datasets containing 3D surfaces and 3D networks. Yet many domains, such as medical ima...
 
EventRiver: Visually Exploring Text Collections with Temporal References
Found in: IEEE Transactions on Visualization and Computer Graphics
By Dongning Luo,Jing Yang,Milos Krstajic,William Ribarsky,Daniel A. Keim
Issue Date:January 2012
pp. 93-105
Many text collections with temporal references, such as news corpora and weblogs, are generated to report and discuss real life events. Thus, event-related tasks, such as detecting real life events that drive the generation of the text documents, tracking ...
 
Guest Editors' Introduction: Multimedia Analytics
Found in: IEEE Computer Graphics and Applications
By Nancy A. Chinchor, Michael G. Christel, William Ribarsky
Issue Date:September 2010
pp. 18-19
A workshop at IEEE VisWeek 09 attempted to bring together the visual-analytics and video analysis communities to determine how much synergy there was between the two fields. The active workshop left everyone feeling that the two fields had much to offer ea...
 
Predictive Analytics Using a Blackboard-Based Reasoning Agent
Found in: Web Intelligence and Intelligent Agent Technology, IEEE/WIC/ACM International Conference on
By Jia Yue, Anita Raja, William Ribarsky
Issue Date:September 2010
pp. 97-100
Significant increase in collected data for investigative tasks and the increased complexity of the reasoning process itself have made investigative analytical tasks more challenging. These tasks are time critical and typically involve identifying and track...
 
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...
 
Toward effective insight management in visual analytics systems
Found in: Visualization Symposium, IEEE Pacific
By Yang Chen, Jing Yang, William Ribarsky
Issue Date:April 2009
pp. 49-56
Although significant progress has been made toward effective insight discovery in visual sense making approaches, there is a lack of effective and efficient approaches to manage the large amounts of insights discovered. In this paper, we propose a systemat...
 
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...
 
Data, Information, and Knowledge in Visualization
Found in: IEEE Computer Graphics and Applications
By Min Chen, David Ebert, Hans Hagen, Robert S. Laramee, Robert van Liere, Kwan-Liu Ma, William Ribarsky, Gerik Scheuermann, Deborah Silver
Issue Date:January 2009
pp. 12-19
This article proposes to help advance visualization technology from the interactive visualization of today to the knowledge-assisted visualization of tomorrow by defining data, information and knowledge in the context of visualization.
 
The Role of Blackboard-Based Reasoning and Visual Analytics in RESIN
Found in: Web Intelligence and Intelligent Agent Technology, IEEE/WIC/ACM International Conference on
By Dingxiang Liu, Jia Yue, Xiaoyu Wang, Anita Raja, William Ribarsky
Issue Date:December 2008
pp. 508-511
Knowledge gathering and investigative tasks in open environments can be very complex because the problem-solving context is constantly evolving, and the data may be incomplete, unreliable and/or conflicting. This paper significantly extends our previous wo...
 
Analyzing Large-Scale News Video Databases to Support Knowledge Visualization and Intuitive Retrieval
Found in: Symposium On Visual Analytics Science And Technology
By Hangzai Luo, Jianping Fan, Jing Yang, William Ribarsky, Shin'ichi Satoh
Issue Date:November 2007
pp. 107-114
In this paper, we have developed a novel framework to enable more effective investigation of large-scale news video database via knowledge visualization. To relieve users from the burdensome exploration of well-known and uninteresting knowledge of news rep...
 
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...
 
NewsLab: Exploratory Broadcast News Video Analysis
Found in: Symposium On Visual Analytics Science And Technology
By Mohammad Ghoniem, Dongning Luo, Jing Yang, William Ribarsky
Issue Date:November 2007
pp. 123-130
In this paper, we introduce NewsLab, an exploratory visualization approach for the analysis of large scale broadcast news video collections containing many thousands of news stories over extended periods of time. A river metaphor is used to depict the them...
 
Value and Relation Display: Interactive Visual Exploration of Large Data Sets with Hundreds of Dimensions
Found in: IEEE Transactions on Visualization and Computer Graphics
By Jing Yang, Daniel Hubball, Matthew O. Ward, Elke A. Rundensteiner, William Ribarsky
Issue Date:May 2007
pp. 494-507
<p><b>Abstract</b>—Few existing visualization systems can handle large data sets with hundreds of dimensions, since high-dimensional data sets cause clutter on the display and large response time in interactive exploration. In this paper,...
 
Navigation and Interaction in a Multi-Scale Stereoscopic Environment
Found in: Virtual Reality Conference, IEEE
By Ernst Houtgast, Onno Pfeiffer, Zachary Wartell, William Ribarsky, Frits Post
Issue Date:March 2005
pp. 275-276
This poster explores navigation, interaction and stereoscopic display in a multi-scale virtual space. When interaction, especially two-handed, direct manipulation, is combined with stereoscopic stationary displays, there are trade-offs that must be conside...
   
Appearance-Preserving View-Dependent Visualization
Found in: Visualization Conference, IEEE
By Justin Jang, William Ribarsky, Christopher Shaw, Peter Wonka
Issue Date:October 2003
pp. 62
In this paper a new quadric-based view-dependent simplification scheme is presented. The scheme provides a method to connect mesh simplification controlled by a quadric error metric with a level-of-detail hierarchy that is accessed continuously and efficie...
 
Maintaining Usability During 3D Placement Despite Delay
Found in: Virtual Reality Conference, IEEE
By Benjamin Watson, Neff Walker, Peter Woytiuk, William Ribarsky
Issue Date:March 2003
pp. 133
This paper describes an experimental investigation into the relationship of delay to user performance in 3D object placement. In the first experiment, 10 participants performed a placement task as delay and placement difficulty varied. Results were analyze...
 
Evaluation of a Multimodal Interface for 3D Terrain Visualization
Found in: Visualization Conference, IEEE
By David M. Krum, Olugbenga Omoteso, William Ribarsky, Thad Starner, Larry F. Hodges
Issue Date:November 2002
pp. N/A
Novel speech and/or gesture interfaces are candidates for use in future mobile or ubiquitous applications. This paper describes an evaluation of various interfaces for visual navigation of a whole Earth 3D terrain model. A mouse driven interface, a speech ...
 
From Urban Terrain Models to Visible Cities
Found in: IEEE Computer Graphics and Applications
By William Ribarsky, Tony Wasilewski, Nickolas Faust
Issue Date:July 2002
pp. 10-15
<p>In this article, we discuss the nature of the acquired data and how we're beginning to meet these challenges and produce visually navigable models. We've developed 3D City, a semiautomated system that supports human intervention at key points to m...
 
The Perceptive Workbench: Toward Spontaneous and Natural Interaction in Semi-Immersive Virtual Environments
Found in: Virtual Reality Conference, IEEE
By Bastian Leibe, Thad Starner, William Ribarsky, Zachary Wartell, David Krum, Brad Singletary, Larry Hodges
Issue Date:March 2000
pp. 13
The Perceptive Workbench enables a spontaneous, natural, and unimpeded interface between the physical and virtual worlds. It uses vision-based methods for interaction that eliminate the need for wired input devices and wired tracking. Objects are recognize...
 
Discovery Visualization Using Fast Clustering
Found in: IEEE Computer Graphics and Applications
By William Ribarsky, Jochen Katz, Frank Jiang, Aubrey Holland
Issue Date:September 1999
pp. 32-39
This article describes discovery visualization, a new visual data mining approach that has as a key element the heightened awareness of the user by the machine. Discovery visualization promotes the concept of continuous interaction with constant feedback b...
 
Virtual Data Visualizer
Found in: IEEE Transactions on Visualization and Computer Graphics
By Ron van Teylingen, William Ribarsky, Charles van der Mast
Issue Date:January 1997
pp. 65-74
<p><b>Abstract</b>—We present the Virtual Data Visualizer, a highly interactive, immersive environment for visualizing and analyzing data. VDV is a set of tools for exploratory data visualization that does not focus on just one type of ap...
 
An Integrated Approach for Steering, Visualization, and Analysis of Atmospheric Simulations
Found in: Visualization Conference, IEEE
By Yves Jean, Thomas Kindler, William Ribarsky, Weiming Gu, Gregory Eisenhauer, Karsten Schwan, Fred Alyea
Issue Date:November 1995
pp. 383
No summary available.
 
Virtual GIS: A Real-Time 3D Geographic Information System
Found in: Visualization Conference, IEEE
By David Koller, Peter Lindstrom, William Ribarsky, Larry F. Hodges, Nick Faust, Gregory Turner
Issue Date:November 1995
pp. 94
No summary available.
 
HierarchicalTopics: Visually Exploring Large Text Collections Using Topic Hierarchies
Found in: IEEE Transactions on Visualization and Computer Graphics
By Wenwen Dou, Li Yu, Xiaoyu Wang, Zhiqiang Ma,William Ribarsky
Issue Date:December 2013
pp. 2002-2011
Analyzing large textual collections has become increasingly challenging given the size of the data available and the rate that more data is being generated. Topic-based text summarization methods coupled with interactive visualizations have presented promi...
 
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...
 
The Times They Are A-Changing: PC Graphics Moves In
Found in: IEEE Computer Graphics and Applications
By William Ribarsky
Issue Date:May 1998
pp. 20-25
No summary available.
 
Computer Graphics Technical Committee
Found in: Computer
By William Ribarsky
Issue Date:November 1996
pp. 95-96
No summary available.
 
The Virtual Annotation System
Found in: Virtual Reality Annual International Symposium
By Reid Harmon, Walter Patterson, William Ribarsky, Jay Bolter
Issue Date:April 1996
pp. 239
Annotation is a key operation for developing understanding of complex data or extended spaces. We have developed a flexible set of annotation tools that can be placed in a variety of applications. These tools offer a full set of capabilities for inserting,...
 
Designing visual analytics systems for organizational environments
Found in: Proceedings of the 2011 Visual Information Communication - International Symposium (VINCI '11)
By Eric Bier, Thomas Butkiewicz, Wenwen Dou, William Ribarsky, Xiaoyu Wang
Issue Date:August 2011
pp. 1-9
We present research focused on designing visual analytics (VA) systems for workers in organizational environments. We focus on business analysts and asset managers, who work collaboratively to analyze information and make decisions. Through extensive inves...
     
Mobile application for first response and emergency evacuation in Urban settings
Found in: Proceedings of the 1st International Conference and Exhibition on Computing for Geospatial Research & Application (COM.Geo '10)
By Jack Guest, Jianfei Liu, K. R. Subramanian, Onyewuchi Obirieze, William Ribarsky
Issue Date:June 2010
pp. 1-1
This work builds on a system we have developed for situation-aware mobile routing and response in an urban environment. The system permits police or other first responders to carry models of collections of often large scale, multi-floor urban buildings the...
     
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 ...
     
Large scale news video database browsing and retrieval via information visualization
Found in: Proceedings of the 2007 ACM symposium on Applied computing (SAC '07)
By Hangzai Luo, Jianping Fan, Shin'ichi Satoh, William Ribarsky
Issue Date:March 2007
pp. 1086-1087
In this paper, we have developed a novel framework to enable more effective visual analysis and retrieval of large-scale news videos via interactive visualization, so that the audiences can find news stories of interest at first glance. Keyframes and keywo...
     
Large-scale news video retrieval via visualization
Found in: Proceedings of the 14th annual ACM international conference on Multimedia (MULTIMEDIA '06)
By Hangzai Luo, Jianping Fan, Shin'ichi Satoh, William Ribarsky, Yuli Gao
Issue Date:October 2006
pp. 783-784
As the content of everyday news reports is unpredictable, keyword based news search engine can't provide effective services to audiences because the audiences may not be able to figure out proper keywords to search. In this paper, a novel framework is prop...
     
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...
     
Isometric pointer interfaces for wearable 3D visualization
Found in: CHI '03 extended abstracts on Human factors in computer systems (CHI '03)
By David M. Krum, Larry Hodges, Rob Melby, William Ribarsky
Issue Date:April 2003
pp. 774-775
3D visualizations will soon be important wearable computer applications. However, 3D interaction can be problematic, especially in a wearable computing environment. We evaluated four 3D interaction methods using isometric joysticks common to wearable compu...
     
Simulator sickness and presence in a high field-of-view virtual environment
Found in: CHI '02 extended abstracts on Human factors in computer systems (CHI '02)
By A. Fleming Seay, David M. Krum, Larry Hodges, William Ribarsky
Issue Date:April 2002
pp. 784-785
This paper describes a study that investigated the effect of field-of-view, display type, and user role on the experience of simulator sickness and presence in users of a virtual environment. Though it interacted with the other experimental factors, field-...
     
Situational visualization
Found in: Proceedings of the ACM symposium on Virtual reality software and technology (VRST '01)
By Christopher D. Shaw, David M. Krum, Larry F. Hodges, Nickolas Faust, William Ribarsky
Issue Date:November 2001
pp. 143-150
In this paper, we introduce a new style of visualization called Situational Visualization, in which the user of a robust, mobile visualization system uses mobile computing resources to enhance the experience and understanding of the surrounding world. Addi...
     
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