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EuroVis
2,012
Interface Exchange as an Indicator for Eddy Heat Transport
10.1111/j.1467-8659.2012.03105.x
The ocean contains many large‐scale, long‐lived vortices, called mesoscale eddies, that are believed to have a role in the transport and redistribution of salt, heat, and nutrients throughout the ocean. Determining this role, however, has proven to be a challenge, since the mechanics of eddies are only partly understoo...
false
false
[ "Sean Williams", "Mark R. Petersen", "Matthew Hecht", "Mathew Maltrud", "John Patchett", "James P. Ahrens", "Bernd Hamann" ]
[]
[]
[]
EuroVis
2,012
iVisClustering: An Interactive Visual Document Clustering via Topic Modeling
10.1111/j.1467-8659.2012.03108.x
Clustering plays an important role in many large‐scale data analyses providing users with an overall understanding of their data. Nonetheless, clustering is not an easy task due to noisy features and outliers existing in the data, and thus the clustering results obtained from automatic algorithms often do not make clea...
false
false
[ "Hanseung Lee", "Jaeyeon Kihm", "Jaegul Choo", "John T. Stasko", "Haesun Park" ]
[]
[]
[]
EuroVis
2,012
Kelp Diagrams: Point Set Membership Visualization
10.1111/j.1467-8659.2012.03080.x
We present Kelp Diagrams, a novel method to depict set relations over points, i.e., elements with predefined positions. Our method creates schematic drawings and has been designed to take aesthetic quality, efficiency, and effectiveness into account. This is achieved by a routing algorithm, which links elements that ar...
false
false
[ "Kasper Dinkla", "Marc J. van Kreveld", "Bettina Speckmann", "Michel A. Westenberg" ]
[]
[]
[]
EuroVis
2,012
Magnetic Flux Topology of 2D Point Dipoles
10.1111/j.1467-8659.2012.03088.x
Magnetic fields exhibit higher‐order, nonlinear singularities in the form of point‐dipole singularities. In addition, due to absence of divergence, they feature only a subset of invariant structures from traditional vector field topology. For magnetic fields of sets of point dipoles—widely present in physics and often ...
false
false
[ "Sven Bachthaler", "Filip Sadlo", "Rudolf Weeber", "Sofia Kantorovich", "Christian Holm", "Daniel Weiskopf" ]
[]
[]
[]
EuroVis
2,012
MarketAnalyzer: An Interactive Visual Analytics System for Analyzing Competitive Advantage Using Point of Sale Data
10.1111/j.1467-8659.2012.03117.x
Competitive intelligence is a systematic approach for gathering, analyzing, and managing information to make informed business decisions. Many companies use competitive intelligence to identify risks and opportunities within markets. Point of sale data that retailers share with vendors is of critical importance in deve...
false
false
[ "Sungahn Ko", "Ross Maciejewski", "Yun Jang", "David S. Ebert" ]
[]
[]
[]
EuroVis
2,012
MatchPad: Interactive Glyph-Based Visualization for Real-Time Sports Performance Analysis
10.1111/j.1467-8659.2012.03118.x
Today real‐time sports performance analysis is a crucial aspect of matches in many major sports. For example, in soccer and rugby, team analysts may annotate videos during the matches by tagging specific actions and events, which typically result in some summary statistics and a large spreadsheet of recorded actions an...
false
false
[ "Philip A. Legg", "David H. S. Chung", "Matthew L. Parry", "Mark W. Jones", "R. Long", "Iwan W. Griffiths", "Min Chen 0001" ]
[]
[]
[]
EuroVis
2,012
Multi-layer illustrative dense flow visualization
10.1111/j.1467-8659.2012.03082.x
We present a dense visualization of vector fields on multi‐layered surfaces. The method is based on the illustration buffer, which provides a screen space representation of the surface, where each pixel stores a list of all surface layers. This representation is implemented on the GPU using shaders and leads to a fast ...
false
false
[ "Robert Carnecky", "Benjamin Schindler", "Raphael Fuchs", "Ronald Peikert" ]
[]
[]
[]
EuroVis
2,012
Nearly Recurrent Components in 3D Piecewise Constant Vector Fields
10.1111/j.1467-8659.2012.03104.x
We present an algorithm for computing nearly recurrent components, that represent areas of close to circulating or stagnant flow, for 3D piecewise constant (PC) vector fields defined on regular grids. Using a number of analytical and simulated data sets, we demonstrate that nearly recurrent components can provide inter...
false
false
[ "Andrzej Szymczak", "Nicholas Brunhart-Lupo" ]
[]
[]
[]
EuroVis
2,012
Parallel Computation of 3D Morse-Smale Complexes
10.1111/j.1467-8659.2012.03089.x
The Morse‐Smale complex is a topological structure that captures the behavior of the gradient of a scalar function on a manifold. This paper discusses scalable techniques to compute the Morse‐Smale complex of scalar functions defined on large three‐dimensional structured grids. Computing the Morse‐Smale complex of thre...
false
false
[ "Nithin Shivashankar", "Vijay Natarajan" ]
[]
[]
[]
EuroVis
2,012
Perception of Animated Node-Link Diagrams for Dynamic Graphs
10.1111/j.1467-8659.2012.03113.x
Effective visualization of dynamic graphs remains an open research topic, and many state‐of‐the‐art tools use animated node‐link diagrams for this purpose. Despite its intuitiveness, the effectiveness of animation in node‐link diagrams has been questioned, and several empirical studies have shown that animation is not ...
false
false
[ "Sohaib Ghani", "Niklas Elmqvist", "Ji Soo Yi" ]
[]
[]
[]
EuroVis
2,012
PORGY: A Visual Graph Rewriting Environment for Complex Systems
10.1111/j.1467-8659.2012.03119.x
Graph rewriting systems (GRSs) operate on graphs by substituting local patterns according to a set of rewriting rules. The apparent simplicity of GRSs hides an incredible complexity and turns the study of these systems into an involved task requiring high‐level expertise. We designed PORGY, an interactive visual enviro...
false
false
[ "Bruno Pinaud", "Guy Melançon", "Jonathan Dubois" ]
[]
[]
[]
EuroVis
2,012
Porosity Maps - Interactive Exploration and Visual Analysis of Porosity in Carbon Fiber Reinforced Polymers
10.1111/j.1467-8659.2012.03111.x
In this work a novel method for the characterization of porosity in carbon fiber reinforced polymers (CFRP) is presented. A visualization pipeline for the interactive exploration and visual analysis of CFRP specimens is developed to enhance the evaluation workflow for non‐destructive testing (NDT) practitioners based o...
false
false
[ "Andreas Reh", "B. Plank", "Johann Kastner", "M. Eduard Gröller", "Christoph Heinzl" ]
[]
[]
[]
EuroVis
2,012
Probabilistic Local Features in Uncertain Vector Fields with Spatial Correlation
10.1111/j.1467-8659.2012.03097.x
In this paper methods for extraction of local features in crisp vector fields are extended to uncertain fields. While in a crisp field local features are either present or absent at some location, in an uncertain field they are present with some probability. We model sampled uncertain vector fields by discrete Gaussian...
false
false
[ "Christoph Petz", "Kai Pöthkow", "Hans-Christian Hege" ]
[]
[]
[]
EuroVis
2,012
Procedural Texture Synthesis for Zoom-Independent Visualization of Multivariate Data
10.1111/j.1467-8659.2012.03127.x
Simultaneous visualization of multiple continuous data attributes in a single visualization is a task that is important for many application areas. Unsurprisingly, many methods have been proposed to solve this task. However, the behavior of such methods during the exploration stage, when the user tries to understand th...
false
false
[ "Rostislav Khlebnikov", "Bernhard Kainz", "Markus Steinberger", "Marc Streit", "Dieter Schmalstieg" ]
[]
[]
[]
EuroVis
2,012
Reliable Adaptive Modelling of Vascular Structures with Non-Circular Cross-Sections
10.1111/j.1467-8659.2012.03098.x
Accurate visualizations of complex vascular structures are essential for medical applications, such as diagnosis, therapy planning and medical education. Vascular trees are usually described using centerlines, since they capture both the topology and the geometry of the vasculature in an intuitive manner. State‐of‐the‐...
false
false
[ "Jan Kretschmer", "Thomas Beck 0001", "Christian Tietjen", "Bernhard Preim", "Marc Stamminger" ]
[]
[]
[]
EuroVis
2,012
Rolled-out Wordles: A Heuristic Method for Overlap Removal of 2D Data Representatives
10.1111/j.1467-8659.2012.03106.x
When representing 2D data points with spacious objects such as labels, overlap can occur. We present a simple algorithm which modifies the (Mani‐) Wordle idea with scan‐line based techniques to allow a better placement. We give an introduction to common placement techniques from different fields and compare our method ...
false
false
[ "Hendrik Strobelt", "Marc Spicker", "Andreas Stoffel", "Daniel A. Keim", "Oliver Deussen" ]
[]
[]
[]
EuroVis
2,012
Scalable Detection of Spatiotemporal Encounters in Historical Movement Data
10.1111/j.1467-8659.2012.03084.x
The widespread adoption of location‐aware devices is resulting in the generation of large amounts of spatiotemporal movement data, collected and stored in digital repositories. This forms a fertile ground for domain experts and scientists to analyze such historical data and discover interesting movement behavioral patt...
false
false
[ "Peter Bak", "Mattias Marder", "Sivan Harary", "Avi Yaeli", "Harold J. Ship" ]
[]
[]
[]
EuroVis
2,012
Semantic Wordification of Document Collections
10.1111/j.1467-8659.2012.03107.x
Word clouds have become one of the most widely accepted visual resources for document analysis and visualization, motivating the development of several methods for building layouts of keywords extracted from textual data. Existing methods are effective to demonstrate content, but are not capable of preserving semantic ...
false
false
[ "Fernando Vieira Paulovich", "Franklina Maria Bragion Toledo", "Guilherme P. Telles", "Rosane Minghim", "Luis Gustavo Nonato" ]
[]
[]
[]
EuroVis
2,012
Semi-Supervised Dimensionality Reduction based on Partial Least Squares for Visual Analysis of High Dimensional Data
10.1111/j.1467-8659.2012.03126.x
Dimensionality reduction is employed for visual data analysis as a way to obtaining reduced spaces for high dimensional data or to mapping data directly into 2D or 3D spaces. Although techniques have evolved to improve data segregation on reduced or visual spaces, they have limited capabilities for adjusting the result...
false
false
[ "Jose Gustavo Paiva", "William Robson Schwartz", "Hélio Pedrini", "Rosane Minghim" ]
[]
[]
[]
EuroVis
2,012
StratomeX: Visual Analysis of Large-Scale Heterogeneous Genomics Data for Cancer Subtype Characterization
10.1111/j.1467-8659.2012.03110.x
Identification and characterization of cancer subtypes are important areas of research that are based on the integrated analysis of multiple heterogeneous genomics datasets. Since there are no tools supporting this process, much of this work is done using ad‐hoc scripts and static plots, which is inefficient and limits...
false
false
[ "Alexander Lex", "Marc Streit", "Hans-Jörg Schulz", "Christian Partl", "Dieter Schmalstieg", "Peter J. Park", "Nils Gehlenborg" ]
[ "HM" ]
[]
[]
EuroVis
2,012
The World's Languages Explorer: Visual Analysis of Language Features in Genealogical and Areal Contexts
10.1111/j.1467-8659.2012.03086.x
This paper presents a novel Visual Analytics approach that helps linguistic researchers to explore the world's languages with respect to several important tasks: (1) The comparison of manually and automatically extracted language features across languages and within the context of language genealogy, (2) the exploratio...
false
false
[ "Christian Rohrdantz", "Michael Hund", "Thomas Mayer 0001", "Bernhard Wälchli", "Daniel A. Keim" ]
[]
[]
[]
EuroVis
2,012
Tracing Tuples Across Dimensions: A Comparison of Scatterplots and Parallel Coordinate Plots
10.1111/j.1467-8659.2012.03129.x
One of the fundamental tasks for analytic activity is retrieving (i.e., reading) the value of a particular quantity in an information visualization. However, few previous studies have compared user performance in such value retrieval tasks for different visualizations. We present an experimental comparison of user perf...
false
false
[ "Xiaole Kuang", "Haimo Zhang", "Shengdong Zhao", "Michael J. McGuffin" ]
[]
[]
[]
EuroVis
2,012
Travel-Route-Centered Metro Map Layout and Annotation
10.1111/j.1467-8659.2012.03085.x
When providing travel guides for a specific route in a metro network, we often place the route around the center of the map and annotate stations on the route with thumbnail photographs. Nonetheless, existing methods do not offer an effective means of customizing the network layout in order to accommodate such large an...
false
false
[ "Hsiang-Yun Wu", "Shigeo Takahashi", "Chun-Cheng Lin", "Hsu-Chun Yen" ]
[]
[]
[]
EuroVis
2,012
Using Signposts for Navigation in Large Graphs
10.1111/j.1467-8659.2012.03091.x
In this paper we present a new Focus & Context technique for the exploration of large, abstract graphs. Most Focus & Context techniques present context in a visual way. In contrast, our technique uses a symbolic representation: while the focus is a set of visible nodes, labelled signposts provide cues for the c...
false
false
[ "Thorsten May", "Martin Steiger", "James Davey", "Jörn Kohlhammer" ]
[]
[]
[]
EuroVis
2,012
Vismon: Facilitating Analysis of Trade-Offs, Uncertainty, and Sensitivity In Fisheries Management Decision Making
10.1111/j.1467-8659.2012.03116.x
In this design study, we present an analysis and abstraction of the data and task in the domain of fisheries management, and the design and implementation of the Vismon tool to address the identified requirements. Vismon was designed to support sophisticated data analysis of simulation results by managers who are highl...
false
false
[ "Maryam Booshehrian", "Torsten Möller", "Randall M. Peterman", "Tamara Munzner" ]
[ "HM" ]
[]
[]
EuroVis
2,012
Visualization of 4D Blood-Flow Fields by Spatiotemporal Hierarchical Clustering
10.1111/j.1467-8659.2012.03099.x
Advancements in the acquisition and modeling of flow fields result in unsteady volumetric flow fields of unprecedented quality. An important example is found in the analysis of unsteady blood‐flow data. Preclinical research strives for a better understanding of correlations between the hemodynamics and the progression ...
false
false
[ "Roy van Pelt", "S. S. A. M. Jacobs", "Bart M. ter Haar Romeny", "Anna Vilanova" ]
[]
[]
[]
EuroVis
2,012
Visualization of Advection-Diffusion in Unsteady Fluid Flow
10.1111/j.1467-8659.2012.03103.x
Advection has been the standard transport mechanism in flow visualization. Diffusion, in contrast, has not been considered important in visual flow field analysis so far, although it is inherent to many physical processes. We present a novel technique that allows for interactive 3D visualization of both advection and d...
false
false
[ "Grzegorz Karol Karch", "Filip Sadlo", "Daniel Weiskopf", "Claus-Dieter Munz", "Thomas Ertl" ]
[]
[]
[]
EuroVis
2,012
Visualization of Global Correlation Structures in Uncertain 2D Scalar Fields
10.1111/j.1467-8659.2012.03095.x
Visualizing correlations, i.e., the tendency of uncertain data values at different spatial positions to change contrarily or according to each other, allows inferring on the possible variations of structures in the data. Visualizing global correlation structures, however, is extremely challenging, since it is not clear...
false
false
[ "Tobias Pfaffelmoser", "Rüdiger Westermann" ]
[]
[]
[]
EuroVis
2,012
Visualizing Motion Data in Virtual Reality: Understanding the Roles of Animation, Interaction, and Static Presentation
10.1111/j.1467-8659.2012.03114.x
We present a study of interactive virtual reality visualizations of scientific motions as found in biomechanics experiments. Our approach is threefold. First, we define a taxonomy of motion visualizations organized by the method (animation, interaction, or static presentation) used to depict both the spatial and tempor...
false
false
[ "Dane M. Coffey", "Fedor Korsakov", "Marcus Ewert", "Haleh Hagh-Shenas", "Lauren Thorson", "Arin M. Ellingson", "David J. Nuckley", "Daniel F. Keefe" ]
[]
[]
[]
EuroVis
2,012
Vortex Analysis in Uncertain Vector Fields
10.1111/j.1467-8659.2012.03096.x
We present an approach to extract and visualize vortex structures in uncertain vector fields. For this, we generalize the concepts of the most common vortex detectors to uncertain vector fields, namely the λ2‐criterion, Q‐criterion, and the concept of parallel vectors at the example of the method by Sujudi and Haimes. ...
false
false
[ "Mathias Otto", "Holger Theisel" ]
[]
[]
[]
CHI
2,012
"I'd never get out of this !?$%# office": redesigning time management for the enterprise
10.1145/2207676.2208307
In this paper, we propose to improve time management in the enterprise by providing users interactive visualizations of how they are spending their time. Through an interview study (n=21) in a multi-national corporation, we were able to determine the data available for visualizations and the value of a number of genera...
false
false
[ "Casey Dugan", "Werner Geyer", "Michael J. Muller", "Abel N. Valente", "Katherine James", "Steve Levy", "Li-Te Cheng", "Elizabeth M. Daly", "Beth Brownholtz" ]
[]
[]
[]
CHI
2,012
A spatiotemporal visualization approach for the analysis of gameplay data
10.1145/2207676.2208558
Contemporary video games are highly complex systems with many interacting variables. To make sure that a game provides a satisfying experience, a meaningful analysis of gameplay data is crucial, particularly because the quality of a game directly relates to the experience a user gains from playing it. Automatic instrum...
false
false
[ "Günter Wallner", "Simone Kriglstein" ]
[]
[]
[]
CHI
2,012
Analysis within and between graphs: observed user strategies in immunobiology visualization
10.1145/2207676.2208291
We present an analysis of two user strategies in interactive data analysis, based on an observational study of four researchers in the immunology domain. Screen captures, video records, interviews, and verbal protocols are used to analyze common procedures in this type of visual data analysis, as well as how these proc...
false
false
[ "Caroline Ziemkiewicz", "Steven R. Gomez", "David H. Laidlaw" ]
[]
[]
[]
CHI
2,012
Annotating BI visualization dashboards: needs & challenges
10.1145/2207676.2208288
Annotations have been identified as an important aid in analysis record-keeping and recently data discovery. In this paper we discuss the use of annotations on visualization dashboards, with a special focus on business intelligence (BI) analysis. In-depth interviews with experts lead to new annotation needs for multi-c...
false
false
[ "Micheline Elias", "Anastasia Bezerianos" ]
[]
[]
[]
CHI
2,012
Comparing averages in time series data
10.1145/2207676.2208556
Visualizations often seek to aid viewers in assessing the big picture in the data, that is, to make judgments about aggregate properties of the data. In this paper, we present an empirical study of a representative aggregate judgment task: finding regions of maximum average in a series. We show how a theory of perceptu...
false
false
[ "Michael Correll", "Danielle Albers", "Steven Franconeri", "Michael Gleicher" ]
[]
[]
[]
CHI
2,012
Delta: a tool for representing and comparing workflows
10.1145/2207676.2208549
Tutorials and sample workflows for complicated, feature-rich software packages are widely available online. As a result users must differentiate between workflows to choose the most suitable one for their task. We present Delta, an interactive workflow visualization and comparison tool that helps users identify the tra...
false
false
[ "Nicholas Kong", "Tovi Grossman", "Björn Hartmann", "Maneesh Agrawala", "George W. Fitzmaurice" ]
[]
[]
[]
CHI
2,012
Digital pen and paper practices in observational research
10.1145/2207676.2208590
Researchers from many disciplines are taking advantage of increasingly inexpensive digital video to capture extensive records of human activity in real-world settings. The ability to record and share such data has created a critical moment in the practice and scope of behavioral research. While recent work is beginning...
false
false
[ "Nadir Weibel", "Adam Fouse", "Colleen Emmenegger", "Whitney Friedman", "Edwin L. Hutchins", "James D. Hollan" ]
[]
[]
[]
CHI
2,012
EEG analysis of implicit human visual perception
10.1145/2207676.2207746
Image Based Rendering (IBR) allows interactive scene exploration from images alone. However, despite considerable development in the area, one of the main obstacles to better quality and more realistic visualizations is the occurrence of visually disagreeable artifacts. In this paper we present a methodology to map out...
false
false
[ "Maryam Mustafa", "Lea Lindemann", "Marcus A. Magnor" ]
[]
[]
[]
CHI
2,012
Gaze-augmented think-aloud as an aid to learning
10.1145/2207676.2208710
The use of recorded eye movements, or scanpaths, has been demonstrated as an effective visualization for feed-forward visual search training, instruction, and stimulated retrospective think-aloud usability testing. In this paper we show that creation of a scripted or recorded video of an expert's think-aloud session au...
false
false
[ "Sarah A. Vitak", "John E. Ingram", "Andrew T. Duchowski", "Steven Ellis", "Anand K. Gramopadhye" ]
[]
[]
[]
CHI
2,012
GraphTrail: analyzing large multivariate, heterogeneous networks while supporting exploration history
10.1145/2207676.2208293
Exploring large network datasets, such as scientific collaboration networks, is challenging because they often contain a large number of nodes and edges in several types and with multiple attributes. Analyses of such networks are often long and complex, and may require several sessions by multiple users. Therefore, it ...
false
false
[ "Cody Dunne", "Nathalie Henry Riche", "Bongshin Lee", "Ronald A. Metoyer", "George G. Robertson" ]
[]
[]
[]
CHI
2,012
Interactive visualization for low literacy users: from lessons learnt to design
10.1145/2207676.2208565
This paper aims to address the problems low literacy (LL) users face when searching for information online. The first part of this paper summarizes the problems that LL user's face, and establishes a set of design principles for interfaces suitable for LL users. This is followed by a description of how these design pri...
false
false
[ "Neesha Kodagoda", "B. L. William Wong", "Chris Rooney", "Nawaz Khan" ]
[]
[]
[]
CHI
2,012
Interpretation and trust: designing model-driven visualizations for text analysis
10.1145/2207676.2207738
Statistical topic models can help analysts discover patterns in large text corpora by identifying recurring sets of words and enabling exploration by topical concepts. However, understanding and validating the output of these models can itself be a challenging analysis task. In this paper, we offer two design considera...
false
false
[ "Jason Chuang", "Daniel Ramage", "Christopher D. Manning", "Jeffrey Heer" ]
[]
[]
[]
CHI
2,012
JigsawMap: connecting the past to the future by mapping historical textual cadasters
10.1145/2207676.2207740
In this paper, we present an interactive visualization tool, JigsawMap, for visualizing and mapping historical textual cadasters. A cadaster is an official register that records land properties (e.g., location, ownership, value and size) for land valuation and taxation. Such mapping of old and new cadasters can help hi...
false
false
[ "Hyungmin Lee", "Sooyun Lee", "Namwook Kim", "Jinwook Seo" ]
[]
[]
[]
CHI
2,012
Legible, are you sure?: an experimentation-based typographical design in safety-critical context
10.1145/2207676.2208387
Designing Safety-critical interfaces entails proving the safety and operational usability of each component. Largely taken for granted in everyday interface design, the typographical component, through its legibility and aesthetics, weighs heavily on the ubiquitous reading task at the heart of most visualizations and i...
false
false
[ "Jean-Luc Vinot", "Sylvie Athènes" ]
[]
[]
[]
CHI
2,012
LightGuide: projected visualizations for hand movement guidance
10.1145/2207676.2207702
LightGuide is a system that explores a new approach to gesture guidance where we project guidance hints directly on a user's body. These projected hints guide the user in completing the desired motion with their body part which is particularly useful for performing movements that require accuracy and proper technique, ...
false
false
[ "Rajinder Sodhi", "Hrvoje Benko", "Andrew D. Wilson" ]
[]
[]
[]
CHI
2,012
MirageTable: freehand interaction on a projected augmented reality tabletop
10.1145/2207676.2207704
Instrumented with a single depth camera, a stereoscopic projector, and a curved screen, MirageTable is an interactive system designed to merge real and virtual worlds into a single spatially registered experience on top of a table. Our depth camera tracks the user's eyes and performs a real-time capture of both the sha...
false
false
[ "Hrvoje Benko", "Ricardo Jota", "Andrew Wilson" ]
[]
[]
[]
CHI
2,012
Observational and experimental investigation of typing behaviour using virtual keyboards for mobile devices
10.1145/2207676.2208658
With the rise of current smartphones, virtual keyboards for touchscreens became the dominant mobile text entry technique. We developed a typing game that records how users touch on the standard Android keyboard to investigate users' typing behaviour. 47,770,625 keystrokes from 72,945 installations have been collected b...
false
false
[ "Niels Henze", "Enrico Rukzio", "Susanne Boll" ]
[]
[]
[]
CHI
2,012
Omnipedia: bridging the wikipedia language gap
10.1145/2207676.2208553
We present Omnipedia, a system that allows Wikipedia readers to gain insight from up to 25 language editions of Wikipedia simultaneously. Omnipedia highlights the similarities and differences that exist among Wikipedia language editions, and makes salient information that is unique to each language as well as that whic...
false
false
[ "Patti Bao", "Brent J. Hecht", "Samuel Carton", "Mahmood Quaderi", "Michael S. Horn", "Darren Gergle" ]
[]
[]
[]
CHI
2,012
Semantic interaction for visual text analytics
10.1145/2207676.2207741
Visual analytics emphasizes sensemaking of large, complex datasets through interactively exploring visualizations generated by statistical models. For example, dimensionality reduction methods use various similarity metrics to visualize textual document collections in a spatial metaphor, where similarities between docu...
false
false
[ "Alex Endert", "Patrick Fiaux", "Chris North 0001" ]
[]
[]
[]
CHI
2,012
Supporting improvisation work in inter-organizational crisis management
10.1145/2207676.2208617
Improvisation is necessary when planned decision-making as the main managerial activity does not fit the conditions the practice provides. In these cases, information technology should not just automate planned and structured decisions, but support improvisational practice. In this contribution we present an empirical ...
false
false
[ "Benedikt Ley", "Volkmar Pipek", "Christian Reuter 0001", "Torben Wiedenhoefer" ]
[]
[]
[]
CHI
2,012
Tangible remote controllers for wall-size displays
10.1145/2207676.2208691
We explore the use of customizable tangible remote controllers for interacting with wall-size displays. Such controllers are especially suited to visual exploration tasks where users need to move to see details of complex visualizations. In addition, we conducted a controlled user study suggesting that tangibles make i...
false
false
[ "Yvonne Jansen", "Pierre Dragicevic", "Jean-Daniel Fekete" ]
[]
[]
[]
CHI
2,012
The bohemian bookshelf: supporting serendipitous book discoveries through information visualization
10.1145/2207676.2208607
Serendipity, a trigger of exciting yet unexpected discoveries, is an important but comparatively neglected factor in information seeking, research, and ideation. We suggest that serendipity can be facilitated through visualization. To explore this, we introduce the Bohemian Bookshelf, which aims to support serendipitou...
false
false
[ "Alice Thudt", "Uta Hinrichs", "Sheelagh Carpendale" ]
[]
[]
[]
CHI
2,012
The case of the missed icon: change blindness on mobile devices
10.1145/2207676.2208606
Insights into human visual attention have benefited many areas of computing, but perhaps most significantly visualisation and UI design [3]. With the proliferation of mobile devices capable of supporting significantly complex applications on small screens, demands on mobile UI design and the user's visual system are be...
false
false
[ "Thomas Davies", "Ashweeni Kumar Beeharee" ]
[]
[]
[]
CHI
2,012
Trust me, i'm partially right: incremental visualization lets analysts explore large datasets faster
10.1145/2207676.2208294
Queries over large scale (petabyte) data bases often mean waiting overnight for a result to come back. Scale costs time. Such time also means that potential avenues of exploration are ignored because the costs are perceived to be too high to run or even propose them. With sampleAction we have explored whether interacti...
false
false
[ "Danyel Fisher", "Igor O. Popov", "Steven Mark Drucker", "m. c. schraefel" ]
[]
[]
[]
CHI
2,012
Understanding the verbal language and structure of end-user descriptions of data visualizations
10.1145/2207676.2208292
Tools exist for people to create visualizations with their data; however, they are often designed for programmers or they restrict less technical people to pre-defined templates. This can make creating novel, custom visualizations difficult for the average person. For example, existing tools typically do not support sy...
false
false
[ "Ronald A. Metoyer", "Bongshin Lee", "Nathalie Henry Riche", "Mary Czerwinski" ]
[]
[]
[]
CHI
2,012
V-model: a new innovative model to chronologically visualize narrative clinical texts
10.1145/2207676.2207739
Visualizing narrative medical events into a timeline can have positive effects on clinical environments. However, the characteristics of natural language and medical environments make this representation more difficult. This paper explains the obstacles and suggests a solution called the V-Model. The V-Model is a new i...
false
false
[ "Heekyong Park", "Jinwook Choi" ]
[]
[]
[]
CHI
2,012
Video summagator: an interface for video summarization and navigation
10.1145/2207676.2207767
This paper presents Video Summagator (VS), a volume-based interface for video summarization and navigation. VS models a video as a space-time cube and visualizes the video cube using real-time volume rendering techniques. VS empowers a user to interactively manipulate the video cube. We show that VS can quickly summari...
false
false
[ "Cuong Nguyen 0003", "Yuzhen Niu", "Feng Liu 0015" ]
[]
[]
[]
CHI
2,012
WebCrystal: understanding and reusing examples in web authoring
10.1145/2207676.2208740
Examples have been widely used in the area of web design to help web authors create web pages. However, without actually understanding how an example is constructed, people often have trouble extracting the elements they want and incorporating them into their own design. This paper introduces WebCrystal, a web developm...
false
false
[ "Kerry Shih-Ping Chang", "Brad A. Myers" ]
[]
[]
[]
Vis
2,011
A Scale Space Based Persistence Measure for Critical Points in 2D Scalar fields
10.1109/TVCG.2011.159
This paper introduces a novel importance measure for critical points in 2D scalar fields. This measure is based on a combination of the deep structure of the scale space with the well-known concept of homological persistence. We enhance the noise robust persistence measure by implicitly taking the hill-, ridge- and out...
false
false
[ "Jan Reininghaus", "Natallia Kotava", "David Günther", "Jens Kasten", "Hans Hagen", "Ingrid Hotz" ]
[]
[]
[]
Vis
2,011
About the Influence of Illumination Models on Image Comprehension in Direct Volume Rendering
10.1109/TVCG.2011.161
In this paper, we present a user study in which we have investigated the influence of seven state-of-the-art volumetric illumination models on the spatial perception of volume rendered images. Within the study, we have compared gradient-based shading with half angle slicing, directional occlusion shading, multidirectio...
false
false
[ "Florian Lindemann", "Timo Ropinski" ]
[]
[]
[]
Vis
2,011
Adaptive Extraction and Quantification of Geophysical Vortices
10.1109/TVCG.2011.162
We consider the problem of extracting discrete two-dimensional vortices from a turbulent flow. In our approach we use a reference model describing the expected physics and geometry of an idealized vortex. The model allows us to derive a novel correlation between the size of the vortex and its strength, measured as the ...
false
false
[ "Sean Williams", "Mark R. Petersen", "Peer-Timo Bremer", "Matthew Hecht", "Valerio Pascucci", "James P. Ahrens", "Mario Hlawitschka", "Bernd Hamann" ]
[]
[]
[]
Vis
2,011
An Efficient Direct Volume Rendering Approach for Dichromats
10.1109/TVCG.2011.164
Color vision deficiency (CVD) affects a high percentage of the population worldwide. When seeing a volume visualization result, persons with CVD may be incapable of discriminating the classification information expressed in the image if the color transfer function or the color blending used in the direct volume renderi...
false
false
[ "Weifeng Chen 0002", "Wei Chen 0001", "Hujun Bao" ]
[]
[]
[]
Vis
2,011
An Interactive Local Flattening Operator to Support Digital Investigations on Artwork Surfaces
10.1109/TVCG.2011.165
Analyzing either high-frequency shape detail or any other 2D fields (scalar or vector) embedded over a 3D geometry is a complex task, since detaching the detail from the overall shape can be tricky. An alternative approach is to move to the 2D space, resolving shape reasoning to easier image processing techniques. In t...
false
false
[ "Nico Pietroni", "Massimiliano Corsini", "Paolo Cignoni", "Roberto Scopigno" ]
[]
[]
[]
Vis
2,011
Artificial Defocus for Displaying Markers in Microscopy Z-Stacks
10.1109/TVCG.2011.168
As microscopes have a very shallow depth of field, Z-stacks (i.e. sets of images shot at different focal planes) are often acquired to fully capture a thick sample. Such stacks are viewed by users by navigating them through the mouse wheel. We propose a new technique of visualizing 3D point, line or area markers in suc...
false
false
[ "Alessandro Giusti", "Pierluigi Taddei", "Giorgio Corani", "Luca Maria Gambardella", "Cristina Magli", "Luca Gianaroli" ]
[ "HM" ]
[]
[]
Vis
2,011
Asymmetric Tensor field Visualization for Surfaces
10.1109/TVCG.2011.170
Asymmetric tensor field visualization can provide important insight into fluid flows and solid deformations. Existing techniques for asymmetric tensor fields focus on the analysis, and simply use evenly-spaced hyperstreamlines on surfaces following eigenvectors and dual-eigenvectors in the tensor field. In this paper, ...
false
false
[ "Darrel Palke", "Zhongzang Lin", "Guoning Chen", "Harry Yeh", "Paul Vincent", "Robert S. Laramee", "Eugene Zhang" ]
[]
[]
[]
Vis
2,011
Authalic Parameterization of General Surfaces Using Lie Advection
10.1109/TVCG.2011.171
Parameterization of complex surfaces constitutes a major means of visualizing highly convoluted geometric structures as well as other properties associated with the surface. It also enables users with the ability to navigate, orient, and focus on regions of interest within a global view and overcome the occlusions to i...
false
false
[ "Guangyu Zou", "Jiaxi Hu", "Xianfeng Gu", "Jing Hua 0001" ]
[]
[]
[]
Vis
2,011
Automatic Transfer Functions Based on Informational Divergence
10.1109/TVCG.2011.173
In this paper we present a framework to define transfer functions from a target distribution provided by the user. A target distribution can reflect the data importance, or highly relevant data value interval, or spatial segmentation. Our approach is based on a communication channel between a set of viewpoints and a se...
false
false
[ "Marc Ruiz", "Anton Bardera", "Imma Boada", "Ivan Viola", "Miquel Feixas", "Mateu Sbert" ]
[]
[]
[]
Vis
2,011
Branching and Circular Features in High Dimensional Data
10.1109/TVCG.2011.177
Large observations and simulations in scientific research give rise to high-dimensional data sets that present many challenges and opportunities in data analysis and visualization. Researchers in application domains such as engineering, computational biology, climate study, imaging and motion capture are faced with the...
false
false
[ "Bei Wang 0001", "Brian Summa", "Valerio Pascucci", "Mikael Vejdemo-Johansson" ]
[]
[]
[]
Vis
2,011
Context Preserving Maps of Tubular Structures
10.1109/TVCG.2011.182
When visualizing tubular 3D structures, external representations are often used for guidance and display, and such views in 2D can often contain occlusions. Virtual dissection methods have been proposed where the entire 3D structure can be mapped to the 2D plane, though these will lose context by straightening curved s...
false
false
[ "Joseph Marino", "Wei Zeng 0002", "Xianfeng Gu", "Arie E. Kaufman" ]
[]
[]
[]
Vis
2,011
Crepuscular Rays for Tumor Accessibility Planning
10.1109/TVCG.2011.184
In modern clinical practice, planning access paths to volumetric target structures remains one of the most important and most complex tasks, and a physician's insufficient experience in this can lead to severe complications or even the death of the patient. In this paper, we present a method for safety evaluation and t...
false
false
[ "Rostislav Khlebnikov", "Bernhard Kainz", "Judith Muehl", "Dieter Schmalstieg" ]
[]
[]
[]
Vis
2,011
Distance Visualization for Interactive 3D Implant Planning
10.1109/TVCG.2011.189
An instant and quantitative assessment of spatial distances between two objects plays an important role in interactive applications such as virtual model assembly, medical operation planning, or computational steering. While some research has been done on the development of distance-based measures between two objects, ...
false
false
[ "Christian Dick", "Rainer Burgkart", "Rüdiger Westermann" ]
[]
[]
[]
Vis
2,011
Evaluation of Trend Localization with Multi-Variate Visualizations
10.1109/TVCG.2011.194
Multi-valued data sets are increasingly common, with the number of dimensions growing. A number of multi-variate visualization techniques have been presented to display such data. However, evaluating the utility of such techniques for general data sets remains difficult. Thus most techniques are studied on only one dat...
false
false
[ "Mark A. Livingston", "Jonathan W. Decker" ]
[]
[]
[]
Vis
2,011
Extinction-Based Shading and Illumination in GPU Volume Ray-Casting
10.1109/TVCG.2011.198
Direct volume rendering has become a popular method for visualizing volumetric datasets. Even though computers are continually getting faster, it remains a challenge to incorporate sophisticated illumination models into direct volume rendering while maintaining interactive frame rates. In this paper, we present a novel...
false
false
[ "Philipp Schlegel", "Maxim Makhinya", "Renato Pajarola" ]
[]
[]
[]
Vis
2,011
Feature-Based Statistical Analysis of Combustion Simulation Data
10.1109/TVCG.2011.199
We present a new framework for feature-based statistical analysis of large-scale scientific data and demonstrate its effectiveness by analyzing features from Direct Numerical Simulations (DNS) of turbulent combustion. Turbulent flows are ubiquitous and account for transport and mixing processes in combustion, astrophys...
false
false
[ "Janine Bennett", "Vaidyanathan Krishnamoorthy", "Shusen Liu", "Ray W. Grout", "Evatt R. Hawkes", "Jacqueline Chen", "Jason F. Shepherd", "Valerio Pascucci", "Peer-Timo Bremer" ]
[]
[]
[]
Vis
2,011
Features in Continuous Parallel Coordinates
10.1109/TVCG.2011.200
Continuous Parallel Coordinates (CPC) are a contemporary visualization technique in order to combine several scalar fields, given over a common domain. They facilitate a continuous view for parallel coordinates by considering a smooth scalar field instead of a finite number of straight lines. We show that there are fea...
false
false
[ "Dirk J. Lehmann", "Holger Theisel" ]
[]
[]
[]
Vis
2,011
Flow Radar Glyphs—Static Visualization of Unsteady Flow with Uncertainty
10.1109/TVCG.2011.203
A new type of glyph is introduced to visualize unsteady flow with static images, allowing easier analysis of time-dependent phenomena compared to animated visualization. Adopting the visual metaphor of radar displays, this glyph represents flow directions by angles and time by radius in spherical coordinates. Dense see...
false
false
[ "Marcel Hlawatsch", "Philipp C. Leube", "Wolfgang Nowak", "Daniel Weiskopf" ]
[]
[]
[]
Vis
2,011
FoamVis: Visualization of 2D Foam Simulation Data
10.1109/TVCG.2011.204
Research in the field of complex fluids such as polymer solutions, particulate suspensions and foams studies how the flow of fluids with different material parameters changes as a result of various constraints. Surface Evolver, the standard solver software used to generate foam simulations, provides large, complex, tim...
false
false
[ "Dan R. Lipsa", "Robert S. Laramee", "Simon J. Cox", "Tudur Davies" ]
[]
[]
[]
Vis
2,011
GPU-Based Interactive Cut-Surface Extraction From High-Order finite Element fields
10.1109/TVCG.2011.206
We present a GPU-based ray-tracing system for the accurate and interactive visualization of cut-surfaces through 3D simulations of physical processes created from spectral/hp high-order finite element methods. When used by the numerical analyst to debug the solver, the ability for the imagery to precisely reflect the d...
false
false
[ "Blake Nelson", "Robert M. Kirby", "Robert Haimes" ]
[]
[]
[]
Vis
2,011
GPU-based Real-Time Approximation of the Ablation Zone for Radiofrequency Ablation
10.1109/TVCG.2011.207
Percutaneous radiofrequency ablation (RFA) is becoming a standard minimally invasive clinical procedure for the treatment of liver tumors. However, planning the applicator placement such that the malignant tissue is completely destroyed, is a demanding task that requires considerable experience. In this work, we presen...
false
false
[ "Christian Rieder", "Tim Kröger", "Christian Schumann", "Horst K. Hahn" ]
[]
[]
[]
Vis
2,011
Hierarchical Event Selection for Video Storyboards with a Case Study on Snooker Video Visualization
10.1109/TVCG.2011.208
Video storyboard, which is a form of video visualization, summarizes the major events in a video using illustrative visualization. There are three main technical challenges in creating a video storyboard, (a) event classification, (b) event selection and (c) event illustration. Among these challenges, (a) is highly app...
false
false
[ "Matthew L. Parry", "Philip A. Legg", "David H. S. Chung", "Iwan W. Griffiths", "Min Chen 0001" ]
[]
[]
[]
Vis
2,011
Image Plane Sweep Volume Illumination
10.1109/TVCG.2011.211
In recent years, many volumetric illumination models have been proposed, which have the potential to simulate advanced lighting effects and thus support improved image comprehension. Although volume ray-casting is widely accepted as the volume rendering technique which achieves the highest image quality, so far no volu...
false
false
[ "Erik Sundén", "Anders Ynnerman", "Timo Ropinski" ]
[]
[]
[]
Vis
2,011
Interactive Multiscale Tensor Reconstruction for Multiresolution Volume Visualization
10.1109/TVCG.2011.214
Large scale and structurally complex volume datasets from high-resolution 3D imaging devices or computational simulations pose a number of technical challenges for interactive visual analysis. In this paper, we present the first integration of a multiscale volume representation based on tensor approximation within a GP...
false
false
[ "Susanne K. Suter", "José Antonio Iglesias Guitián", "Fabio Marton", "Marco Agus", "Andreas Elsener", "Christoph P. E. Zollikofer", "Meenakshisundaram Gopi", "Enrico Gobbetti", "Renato Pajarola" ]
[]
[]
[]
Vis
2,011
Interactive Virtual Probing of 4D MRI Blood-Flow
10.1109/TVCG.2011.215
Better understanding of hemodynamics conceivably leads to improved diagnosis and prognosis of cardiovascular diseases. Therefore, an elaborate analysis of the blood-flow in heart and thoracic arteries is essential. Contemporary MRI techniques enable acquisition of quantitative time-resolved flow information, resulting ...
false
false
[ "Roy van Pelt", "Javier Oliván Bescós", "Marcel Breeuwer", "Rachel E. Clough", "M. Eduard Gröller", "Bart M. ter Haar Romeny", "Anna Vilanova" ]
[]
[]
[]
Vis
2,011
Interactive Volume Visualization of General Polyhedral Grids
10.1109/TVCG.2011.216
This paper presents a novel framework for visualizing volumetric data specified on complex polyhedral grids, without the need to perform any kind of a priori tetrahedralization. These grids are composed of polyhedra that often are non-convex and have an arbitrary number of faces, where the faces can be non-planar with ...
false
false
[ "Philipp Muigg", "Markus Hadwiger", "Helmut Doleisch", "M. Eduard Gröller" ]
[]
[]
[]
Vis
2,011
Interactive, Graph-based Visual Analysis of High-dimensional, Multi-parameter Fluorescence Microscopy Data in Toponomics
10.1109/TVCG.2011.217
In Toponomics, the function protein pattern in cells or tissue (the toponome) is imaged and analyzed for applications in toxicology, new drug development and patient-drug-interaction. The most advanced imaging technique is robot-driven multi-parameter fluorescence microscopy. This technique is capable of co-mapping hun...
false
false
[ "Steffen Oeltze-Jafra", "Wolfgang Freiler", "Reyk Hillert", "Helmut Doleisch", "Bernhard Preim", "Walter Schubert" ]
[]
[]
[]
Vis
2,011
iView: A Feature Clustering Framework for Suggesting Informative Views in Volume Visualization
10.1109/TVCG.2011.218
The unguided visual exploration of volumetric data can be both a challenging and a time-consuming undertaking. Identifying a set of favorable vantage points at which to start exploratory expeditions can greatly reduce this effort and can also ensure that no important structures are being missed. Recent research efforts...
false
false
[ "Ziyi Zheng", "Nafees U. Ahmed", "Klaus Mueller 0001" ]
[]
[]
[]
Vis
2,011
Load-Balanced Parallel Streamline Generation on Large Scale Vector fields
10.1109/TVCG.2011.219
Because of the ever increasing size of output data from scientific simulations, supercomputers are increasingly relied upon to generate visualizations. One use of supercomputers is to generate field lines from large scale flow fields. When generating field lines in parallel, the vector field is generally decomposed int...
false
false
[ "Boonthanome Nouanesengsy", "Teng-Yok Lee", "Han-Wei Shen" ]
[]
[]
[]
Vis
2,011
Multi-Touch Table System for Medical Visualization: Application to Orthopedic Surgery Planning
10.1109/TVCG.2011.224
Medical imaging plays a central role in a vast range of healthcare practices. The usefulness of 3D visualizations has been demonstrated for many types of treatment planning. Nevertheless, full access to 3D renderings outside of the radiology department is still scarce even for many image-centric specialties. Our work s...
false
false
[ "Claes Lundström", "Thomas Rydell", "Camilla Forsell", "Anders Persson", "Anders Ynnerman" ]
[]
[]
[]
Vis
2,011
Nodes on Ropes: A Comprehensive Data and Control Flow for Steering Ensemble Simulations
10.1109/TVCG.2011.225
Flood disasters are the most common natural risk and tremendous efforts are spent to improve their simulation and management. However, simulation-based investigation of actions that can be taken in case of flood emergencies is rarely done. This is in part due to the lack of a comprehensive framework which integrates an...
false
false
[ "Jürgen Waser", "Hrvoje Ribicic", "Raphael Fuchs", "Christian Hirsch", "Benjamin Schindler", "Günter Blöschl", "M. Eduard Gröller" ]
[]
[]
[]
Vis
2,011
Projection-Based Metal-Artifact Reduction for Industrial 3D X-ray Computed Tomography
10.1109/TVCG.2011.228
Multi-material components, which contain metal parts surrounded by plastic materials, are highly interesting for inspection using industrial 3D X-ray computed tomography (3DXCT). Examples of this application scenario are connectors or housings with metal inlays in the electronic or automotive industry. A major problem ...
false
false
[ "Artem Amirkhanov", "Christoph Heinzl", "Michael Reiter", "Johann Kastner", "M. Eduard Gröller" ]
[]
[]
[]
Vis
2,011
Quasi Interpolation With Voronoi Splines
10.1109/TVCG.2011.230
We present a quasi interpolation framework that attains the optimal approximation-order of Voronoi splines for reconstruction of volumetric data sampled on general lattices. The quasi interpolation framework of Voronoi splines provides an unbiased reconstruction method across various lattices. Therefore this framework ...
false
false
[ "Mahsa Mirzargar", "Alireza Entezari" ]
[]
[]
[]
Vis
2,011
Saliency-Assisted Navigation of Very Large Landscape Images
10.1109/TVCG.2011.231
The field of visualization has addressed navigation of very large datasets, usually meshes and volumes. Significantly less attention has been devoted to the issues surrounding navigation of very large images. In the last few years the explosive growth in the resolution of camera sensors and robotic image acquisition te...
false
false
[ "Cheuk Yiu Ip", "Amitabh Varshney" ]
[ "HM" ]
[]
[]
Vis
2,011
Straightening Tubular Flow for Side-by-Side Visualization
10.1109/TVCG.2011.235
Flows through tubular structures are common in many fields, including blood flow in medicine and tubular fluid flows in engineering. The analysis of such flows is often done with a strong reference to the main flow direction along the tubular boundary. In this paper we present an approach for straightening the visualiz...
false
false
[ "Paolo Angelelli", "Helwig Hauser" ]
[]
[]
[]
Vis
2,011
Symmetry in Scalar field Topology
10.1109/TVCG.2011.236
Study of symmetric or repeating patterns in scalar fields is important in scientific data analysis because it gives deep insights into the properties of the underlying phenomenon. Though geometric symmetry has been well studied within areas like shape processing, identifying symmetry in scalar fields has remained large...
false
false
[ "Dilip Mathew Thomas", "Vijay Natarajan" ]
[]
[]
[]
Vis
2,011
The Effect of Colour and Transparency on the Perception of Overlaid Grids
10.1109/TVCG.2011.242
Overlaid reference elements need to be sufficiently visible to effectively relate to the underlying information, but not so obtrusive that they clutter the presentation. We seek to create guidelines for presenting such structures through experimental studies to define boundary conditions for visual intrusiveness. We ba...
false
false
[ "Lyn Bartram", "Billy Cheung", "Maureen C. Stone" ]
[]
[]
[]
Vis
2,011
The FLOWLENS: A Focus-and-Context Visualization Approach for Exploration of Blood Flow in Cerebral Aneurysms
10.1109/TVCG.2011.243
Blood flow and derived data are essential to investigate the initiation and progression of cerebral aneurysms as well as their risk of rupture. An effective visual exploration of several hemodynamic attributes like the wall shear stress (WSS) and the inflow jet is necessary to understand the hemodynamics. Moreover, the...
false
false
[ "Rocco Gasteiger", "Mathias Neugebauer", "Oliver Beuing", "Bernhard Preim" ]
[]
[]
[]
Vis
2,011
Topological Spines: A Structure-preserving Visual Representation of Scalar fields
10.1109/TVCG.2011.244
We present topological spines-a new visual representation that preserves the topological and geometric structure of a scalar field. This representation encodes the spatial relationships of the extrema of a scalar field together with the local volume and nesting structure of the surrounding contours. Unlike other topolo...
false
false
[ "Carlos D. Correa", "Peter Lindstrom 0001", "Peer-Timo Bremer" ]
[]
[]
[]
Vis
2,011
Towards Robust Topology of Sparsely Sampled Data
10.1109/TVCG.2011.245
Sparse, irregular sampling is becoming a necessity for reconstructing large and high-dimensional signals. However, the analysis of this type of data remains a challenge. One issue is the robust selection of neighborhoods - a crucial part of analytic tools such as topological decomposition, clustering and gradient estim...
false
false
[ "Carlos D. Correa", "Peter Lindstrom 0001" ]
[ "BP" ]
[]
[]
Vis
2,011
TransGraph: Hierarchical Exploration of Transition Relationships in Time-Varying Volumetric Data
10.1109/TVCG.2011.246
A fundamental challenge for time-varying volume data analysis and visualization is the lack of capability to observe and track data change or evolution in an occlusion-free, controllable, and adaptive fashion. In this paper, we propose to organize a timevarying data set into a hierarchy of states. By deriving transitio...
false
false
[ "Yi Gu", "Chaoli Wang 0001" ]
[]
[]
[]
Vis
2,011
Tuner: Principled Parameter finding for Image Segmentation Algorithms Using Visual Response Surface Exploration
10.1109/TVCG.2011.248
In this paper we address the difficult problem of parameter-finding in image segmentation. We replace a tedious manual process that is often based on guess-work and luck by a principled approach that systematically explores the parameter space. Our core idea is the following two-stage technique: We start with a sparse ...
false
false
[ "Thomas Torsney-Weir", "Ahmed Saad", "Torsten Möller", "Hans-Christian Hege", "Britta Weber", "Jean-Marc Verbavatz", "Steven Bergner" ]
[ "TT" ]
[]
[]