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Displaying 1-13 out of 13 total
Spatial Text Visualization Using Automatic Typographic Maps
Found in: IEEE Transactions on Visualization and Computer Graphics
By Shehzad Afzal,Ross Maciejewski,Yun Jang,Niklas Elmqvist,David S. Ebert
Issue Date:December 2012
pp. 2556-2564
We present a method for automatically building typographic maps that merge text and spatial data into a visual representation where text alone forms the graphical features. We further show how to use this approach to visualize spatial data such as traffic ...
 
Interactive Volume Rendering of Functional Representations in Quantum Chemistry
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yun Jang, Ugo Varetto
Issue Date:November 2009
pp. 1579-5186
Simulation and computation in chemistry studies have been improved as computational power has increased over decades. Many types of chemistry simulation results are available, from atomic level bonding to volumetric representations of electron density. How...
 
A Mobile Visual Analytics Approach for Law Enforcement Situation Awareness
Found in: 2014 IEEE Pacific Visualization Symposium (PacificVis)
By Ahmad M. M. Razip,Abish Malik,Shehzad Afzal,Matthew Potrawski,Ross Maciejewski, Yun Jang,Niklas Elmqvist,David S. Ebert
Issue Date:March 2014
pp. 169-176
The advent of modern smart phones and handheld devices has given analysts, decision-makers, and even the general public the ability to rapidly ingest data and translate it into actionable information on-the-go. In this paper, we explore the design and use ...
 
Bristle Maps: A Multivariate Abstraction Technique for Geovisualization
Found in: IEEE Transactions on Visualization and Computer Graphics
By SungYe Kim,R. Maciejewski,A. Malik, Yun Jang,D. S. Ebert,T. Isenberg
Issue Date:September 2013
pp. 1438-1454
We present Bristle Maps, a novel method for the aggregation, abstraction, and stylization of spatiotemporal data that enables multiattribute visualization, exploration, and analysis. This visualization technique supports the display of multidimensional dat...
 
Smart Transparency for Illustrative Visualization of Complex Flow Surfaces
Found in: IEEE Transactions on Visualization and Computer Graphics
By R. Carnecky,R. Fuchs,S. Mehl, Yun Jang,R. Peikert
Issue Date:May 2013
pp. 838-851
The perception of transparency and the underlying neural mechanisms have been subject to extensive research in the cognitive sciences. However, we have yet to develop visualization techniques that optimally convey the inner structure of complex transparent...
 
Abstracting Attribute Space for Transfer Function Exploration and Design
Found in: IEEE Transactions on Visualization and Computer Graphics
By R. Maciejewski, Yun Jang, Insoo Woo,H. Ja╠łnicke,K. P. Gaither,D. S. Ebert
Issue Date:January 2013
pp. 94-107
Currently, user centered transfer function design begins with the user interacting with a one or two-dimensional histogram of the volumetric attribute space. The attribute space is visualized as a function of the number of voxels, allowing the user to expl...
 
A correlative analysis process in a visual analytics environment
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Abish Malik,Ross Maciejewski,Niklas Elmqvist,Yun Jang,David S. Ebert,Whitney Huang
Issue Date:October 2012
pp. 33-42
Finding patterns and trends in spatial and temporal datasets has been a long studied problem in statistics and different domains of science. This paper presents a visual analytics approach for the interactive exploration and analysis of spatiotemporal corr...
 
Spatiotemporal social media analytics for abnormal event detection and examination using seasonal-trend decomposition
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Junghoon Chae,Dennis Thom,Harald Bosch,Yun Jang,Ross Maciejewski,David S. Ebert,Thomas Ertl
Issue Date:October 2012
pp. 143-152
Recent advances in technology have enabled social media services to support space-time indexed data, and internet users from all over the world have created a large volume of time-stamped, geo-located data. Such spatiotemporal data has immense value for in...
 
Time-Varying Data Visualization Using Functional Representations
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yun Jang,David S. Ebert,Kelly Gaither
Issue Date:March 2012
pp. 421-433
In many scientific simulations, the temporal variation and analysis of features are important. Visualization and visual analysis of time series data is still a significant challenge because of the large volume of data. Irregular and scattered time series d...
 
LAHVA: Linked Animal-Human Health Visual Analytics
Found in: Symposium On Visual Analytics Science And Technology
By Ross Maciejewski, Benjamin Tyner, Yun Jang, Cheng Zheng, Rimma V. Nehme, David S. Ebert, William S. Cleveland, Mourad Ouzzani, Shaun J. Grannis, Lawrence T. Glickman
Issue Date:November 2007
pp. 27-34
Coordinated animal-human health monitoring can provide an early warning system with fewer false alarms for naturally occurring disease outbreaks, as well as biological, chemical and environmental incidents. This monitoring requires the integration and anal...
 
Visual Analytics on Mobile Devices for Emergency Response
Found in: Symposium On Visual Analytics Science And Technology
By Sung Ye Kim, Yun Jang, Angela Mellema, David S. Ebert, Timothy Collinss
Issue Date:November 2007
pp. 35-42
Using mobile devices for visualization provides a ubiquitous environment for accessing information and effective decision making. These visualizations are critical in satisfying the knowledge needs of operators in areas as diverse as education, business, l...
 
Hardware-Assisted Feature Analysis and Visualization of Procedurally Encoded Multifield Volumetric Data
Found in: IEEE Computer Graphics and Applications
By Manfred Weiler, Ralf Botchen, Simon Stegmaier, Thomas Ertl, Jingshu Huang, Yun Jang, David S. Ebert, Kelly P. Gaither
Issue Date:September 2005
pp. 72-81
Procedural encoding of scattered and unstructured scalar datasets using radial basis functions (RBFs) is an active area of research with great potential for compactly representing large data sets. This reduced storage requirement lets the compressed data s...
 
Data-aided algorithm based frequency synchronizer for DVB-S2
Found in: Proceedings of the 2nd international conference on Ubiquitous information management and communication (ICUIMC '08)
By Hyoung Jin Yun, Jang Woong Park, Myung Hoon Sunwoo
Issue Date:January 2008
pp. 1-2
This paper presents an efficient frequency synchronizer for digital video broadcasting --- second generation (DVB-S2). Analyzing the robust algorithm among data-aided approaches, we find that the Luise & Reggiannini (L&R) algorithm is the most suitable...
     
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