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Displaying 1-19 out of 19 total
Visual Analysis of Topic Competition on Social Media
Found in: IEEE Transactions on Visualization and Computer Graphics
By Panpan Xu,Yingcai Wu,Enxun Wei,Tai-Quan Peng,Shixia Liu,Jonathan J.H. Zhu,Huamin Qu
Issue Date:December 2013
pp. 2012-2021
How do various topics compete for public attention when they are spreading on social media? What roles do opinion leaders play in the rise and fall of competitiveness of various topics? In this study, we propose an expanded topic competition model to chara...
 
ViSizer: A Visualization Resizing Framework
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yingcai Wu, Xiaotong Liu, Shixia Liu, Kwan-Liu Ma
Issue Date:February 2013
pp. 278-290
Visualization resizing is useful for many applications where users may use different display devices. General resizing techniques (e.g., uniform scaling) and image-resizing techniques suffer from several drawbacks, as they do not consider the content of th...
 
Visualizing Flow of Uncertainty through Analytical Processes
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yingcai Wu,Guo-Xun Yuan,Kwan-Liu Ma
Issue Date:December 2012
pp. 2526-2535
Uncertainty can arise in any stage of a visual analytics process, especially in data-intensive applications with a sequence of data transformations. Additionally, throughout the process of multidimensional, multivariate data analysis, uncertainty due to da...
 
OpinionSeer: Interactive Visualization of Hotel Customer Feedback
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yingcai Wu, Furu Wei, Shixia Liu, Norman Au, Weiwei Cui, Hong Zhou, Huamin Qu
Issue Date:November 2010
pp. 1109-1118
The rapid development of Web technology has resulted in an increasing number of hotel customers sharing their opinionson the hotel services. Effective visual analysis of online customer opinions is needed, as it has a significant impact on buildinga succes...
 
Interactive Visual Optimization and Analysis for RFID Benchmarking
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yingcai Wu, Ka-Kei Chung, Huamin Qu, Xiaoru Yuan, S.C. Cheung
Issue Date:November 2009
pp. 1335-1342
Radio frequency identification (RFID) is a powerful automatic remote identification technique that has wide applications. To facilitate RFID deployment, an RFID benchmarking instrument called aGate has been invented to identify the strengths and weaknesses...
 
Perception-Based Transparency Optimization for Direct Volume Rendering
Found in: IEEE Transactions on Visualization and Computer Graphics
By Ming-Yuen Chan, Yingcai Wu, Wai-Ho Mak, Wei Chen, Huamin Qu
Issue Date:November 2009
pp. 1283-1290
The semi-transparent nature of direct volume rendered images is useful to depict layered structures in a volume. However, obtaining a semi-transparent result with the layers clearly revealed is difficult and may involve tedious adjustment on opacity and ot...
 
OpinionFlow: Visual Analysis of Opinion Diffusion on Social Media
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yingcai Wu,Shixia Liu,Kai Yan,Mengchen Liu,Fangzhao Wu
Issue Date:February 2015
pp. 1
It is important for many different applications such as government and business intelligence to analyze and explore the diffusion of public opinions on social media. However, the rapid propagation and great diversity of public opinions on social media pose...
 
StoryFlow: Tracking the Evolution of Stories
Found in: IEEE Transactions on Visualization and Computer Graphics
By Shixia Liu,Yingcai Wu,Enxun Wei,Mengchen Liu,Yang Liu
Issue Date:December 2013
pp. 2436-2445
Storyline visualizations, which are useful in many applications, aim to illustrate the dynamic relationships between entities in a story. However, the growing complexity and scalability of stories pose great challenges for existing approaches. In this pape...
 
Perceptually-Based Depth-Ordering Enhancement for Direct Volume Rendering
Found in: IEEE Transactions on Visualization and Computer Graphics
By Lin Zheng, Yingcai Wu, Kwan-Liu Ma
Issue Date:March 2013
pp. 446-459
Visualizing complex volume data usually renders selected parts of the volume semitransparently to see inner structures of the volume or provide a context. This presents a challenge for volume rendering methods to produce images with unambiguous depth-order...
 
Focus+Context Route Zooming and Information Overlay in 3D Urban Environments
Found in: IEEE Transactions on Visualization and Computer Graphics
By Huamin Qu, Haomian Wang, Weiwei Cui, Yingcai Wu, Ming-Yuen Chan
Issue Date:November 2009
pp. 1547-1554
In this paper we present a novel focus+context zooming technique, which allows users to zoom into a route and its associated landmarks in a 3D urban environment from a 45-degree bird’s-eye view. Through the creative utilization of the empty spac...
 
Integrated Tourist Navigation System
Found in: Computer Graphics, Imaging and Visualization, International Conference on
By Haomian Wang, Weiwei Cui, Hong Zhou, Yingcai Wu, Huamin Qu
Issue Date:August 2009
pp. 497-502
Tourist navigation systems have used digital maps to provide users with location and route information for a long time. However, without detailed 3D building models, users may miss important turns at some intersections and have problems to find their targe...
 
Relation-Aware Volume Exploration Pipeline
Found in: IEEE Transactions on Visualization and Computer Graphics
By Ming-Yuen Chan, Huamin Qu, Ka-Kei Chung, Wai-Ho Mak, Yingcai Wu
Issue Date:November 2008
pp. 1683-1690
Volume exploration is an important issue in scientific visualization. Research on volume exploration has been focused on revealing hidden structures in volumetric data. While the information of individual structures or features is useful in practice, spati...
 
Interactive Transfer Function Design Based on Editing Direct Volume Rendered Images
Found in: IEEE Transactions on Visualization and Computer Graphics
By Yingcai Wu, Huamin Qu
Issue Date:September 2007
pp. 1027-1040
<p><b>Abstract</b>—Direct volume rendered images (DVRIs) have been widely used to reveal structures in volumetric data. However, DVRIs generated by many volume visualization techniques can only partially satisfy users' demands. In this pa...
 
Natural Textures for Weather Data Visualization
Found in: Information Visualisation, International Conference on
By Ying Tang, Huamin Qu, Yingcai Wu, Hong Zhou
Issue Date:July 2006
pp. 741-750
In this paper we present a novel method to visualize weather data with multi-layer controllable texture synthesis. Texture possesses multiple principal perceptual channels, which makes it good at encoding multiple data attributes contained in weather data....
 
EvoRiver: Visual Analysis of Topic Coopetition on Social Media
Found in: IEEE Transactions on Visualization and Computer Graphics
By Guodao Sun,Yingcai Wu,Shixia Liu,Tai-Quan Peng,Jonathan J. H. Zhu,Ronghua Liang
Issue Date:February 2015
pp. 1
Cooperation and competition (jointly called “coopetition”) are two modes of interactions among a set of concurrent topics on social media. How do topics cooperate or compete with each other to gain public attention? Which topics tend to cooperate or compet...
 
LoyalTracker: Visualizing Loyalty Dynamics in Search Engines
Found in: IEEE Transactions on Visualization and Computer Graphics
By Conglei Shi,Yingcai Wu,Shixia Liu,Hong Zhou,Huamin Qu
Issue Date:February 2015
pp. 1
The huge amount of user log data collected by search engine providers creates new opportunities to understand user loyalty and defection behavior at an unprecedented scale. However, this also poses a great challenge to analyze the behavior and glean insigh...
 
Visual Analysis of Topic Competition on Social Media
Found in: IEEE Transactions on Visualization and Computer Graphics
By Panpan Xu, Yingcai Wu, Enxun Wei, Tai-Quan Peng, Shixia Liu,Jonathan J. H. Zhu, Huamin Qu
Issue Date:December 2013
pp. 2012-2021
How do various topics compete for public attention when they are spreading on social media? What roles do opinion leaders play in the rise and fall of competitiveness of various topics? In this study, we propose an expanded topic competition model to chara...
 
StoryFlow: Tracking the Evolution of Stories
Found in: IEEE Transactions on Visualization and Computer Graphics
By Shixia Liu, Yingcai Wu, Enxun Wei, Mengchen Liu, Yang Liu
Issue Date:December 2013
pp. 2436-2445
Storyline visualizations, which are useful in many applications, aim to illustrate the dynamic relationships between entities in a story. However, the growing complexity and scalability of stories pose great challenges for existing approaches. In this pape...
 
Context-Preserving, Dynamic Word Cloud Visualization
Found in: IEEE Computer Graphics and Applications
By Weiwei Cui, Yingcai Wu, Shixia Liu, Furu Wei,Michelle X Zhou, Huamin Qu
Issue Date:November 2010
pp. 42-53
The proposed method uses context-preserving, dynamic word clouds to illustrate content evolution. It generates a sequence of word clouds in which related words are grouped together. This sequence is then coupled with a trend chart that summarizes content c...
 
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