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2015 IEEE Pacific Visualization Symposium (PacificVis)最新文献

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Interactive high-dimensional visualization of social graphs 交互式高维社交图可视化
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156391
Ken Wakita, Masanori Takami, H. Hosobe
{"title":"Interactive high-dimensional visualization of social graphs","authors":"Ken Wakita, Masanori Takami, H. Hosobe","doi":"10.1109/PACIFICVIS.2015.7156391","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156391","url":null,"abstract":"The paper tackles the problems of the “giant hairballs”, the dense and tangled structures often resulting from visualization of large social graphs. Proposed is a high-dimensional rotation technique called AGI3D, combined with an ability to filter elements based on social centrality values. AGI3D is targeted for a high-dimensional embedding of a social graph and its projection onto 3D space. It allows the user to rotate the social graph layout in the high-dimensional space by mouse dragging of a vertex. Its high-dimensional rotation effects give the user an illusion that he/she is destructively reshaping the social graph layout but in reality, it assists the user to find a preferred positioning and direction in the high-dimensional space to look at the internal structure of the social graph layout, keeping it unmodified. A prototype implementation of the proposal called Social Viewpoint Finder is tested with about 70 social graphs and this paper reports four of the analysis results.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121988709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Ray tracing within a data parallel framework 数据并行框架中的光线跟踪
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156388
Matthew Larsen, J. Meredith, P. Navrátil, H. Childs
{"title":"Ray tracing within a data parallel framework","authors":"Matthew Larsen, J. Meredith, P. Navrátil, H. Childs","doi":"10.1109/PACIFICVIS.2015.7156388","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156388","url":null,"abstract":"Current architectural trends on supercomputers have dramatic increases in the number of cores and available computational power per die, but this power is increasingly difficult for programmers to harness effectively. High-level language constructs can simplify programming many-core devices, but this ease comes with a potential loss of processing power, particularly for cross-platform constructs. Recently, scientific visualization packages have embraced language constructs centering around data parallelism, with familiar operators such as map, reduce, gather, and scatter. Complete adoption of data parallelism will require that central visualization algorithms be revisited, and expressed in this new paradigm while preserving both functionality and performance. This investment has a large potential payoff: portable performance in software bases that can span over the many architectures that scientific visualization applications run on. With this work, we present a method for ray tracing consisting of entirely of data parallel primitives. Given the extreme computational power on nodes now prevalent on supercomputers, we believe that ray tracing can supplant rasterization as the work-horse graphics solution for scientific visualization. Our ray tracing method is relatively efficient, and we describe its performance with a series of tests, and also compare to leading-edge ray tracers that are optimized for specific platforms. We find that our data parallel approach leads to results that are acceptable for many scientific visualization use cases, with the key benefit of providing a single code base that can run on many architectures.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"331 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115973675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 32
Applying feature integration theory to glyph-based information visualization 特征集成理论在基于符号的信息可视化中的应用
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156363
Zhuang Cai, Yi-Na Li, X. Zheng, Kang Zhang
{"title":"Applying feature integration theory to glyph-based information visualization","authors":"Zhuang Cai, Yi-Na Li, X. Zheng, Kang Zhang","doi":"10.1109/PACIFICVIS.2015.7156363","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156363","url":null,"abstract":"Feature integration theory, the classic visual attention model, provides a theoretical foundation for optimizing visual communication. This paper proposes a set of glyphs named RoseShape that aim at improving users' visual information search in visualization. RoseShapes integrate rich and easy-to-catch attributes for mapping data variables, enabling automatic and unconscious information processing in the pre-attentive stage. A case study illustrating the levels of education funding in the United States in 2008 validates the feasibility of this approach.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127492299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
TraVis - A visualization framework for mobile transect data sets in an urban microclimate context TraVis -一个城市微气候环境下移动样带数据集的可视化框架
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156374
Kathrin Häb, A. Middel, B. Ruddell, H. Hagen
{"title":"TraVis - A visualization framework for mobile transect data sets in an urban microclimate context","authors":"Kathrin Häb, A. Middel, B. Ruddell, H. Hagen","doi":"10.1109/PACIFICVIS.2015.7156374","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156374","url":null,"abstract":"In urban microclimate research, mobile transects are utilized to observe the relationship between atmospheric variables and the urban environment. However, the data sets resulting from mobile measurements are complex: They are spatially dependent, multivariate, and often-times multitemporal. At the same time, the spatial context of each observation - its field of view and area represented - is physically complex and dynamic. These properties make analysis and visualization challenging. We present a prototype visualization framework that assists researchers in the analysis of mobile transect measurements. The system enables users to visualize and explore observations as walls that delineate the transect route on a map. The observed attributes are stacked upon each other within these walls as ribbons to facilitate the qualitative analysis of spatial variability and multivariate correlations. The relationship between observations and spatial context can interactively be explored by moving a slider along the transect route. For each observation on the track, the spatially contextual source area is displayed and linked to a view of the fraction of land cover classes contained within the source area. These qualitative analysis capabilities are complemented by an interactive clustering interface, which allows for the classification of transect segments according to a coherent pattern of multivariate relationships between a user-defined set of observations. The framework was developed by a team comprising both visualization and urban microclimate researchers, and a case study shows its utility for this specialized application.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130493547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Attribute-driven edge bundling for general graphs with applications in trail analysis 用于一般图的属性驱动边缘绑定，具有跟踪分析中的应用程序
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156354
Vsevolod Peysakhovich, C. Hurter, A. Telea
{"title":"Attribute-driven edge bundling for general graphs with applications in trail analysis","authors":"Vsevolod Peysakhovich, C. Hurter, A. Telea","doi":"10.1109/PACIFICVIS.2015.7156354","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156354","url":null,"abstract":"Edge bundling methods reduce visual clutter of dense and occluded graphs. However, existing bundling techniques either ignore edge properties such as direction and data attributes, or are otherwise computationally not scalable, which makes them unsuitable for tasks such as exploration of large trajectory datasets. We present a new framework to generate bundled graph layouts according to any numerical edge attributes such as directions, timestamps or weights. We propose a GPU-based implementation linear in number of edges, which makes our algorithm applicable to large datasets. We demonstrate our method with applications in the analysis of aircraft trajectory datasets and eye-movement traces.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127103864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 69
Improving the fidelity of contextual data layouts using a Generalized Barycentric Coordinates framework 使用广义重心坐标框架提高上下文数据布局的保真度
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156390
Shenghui Cheng, K. Mueller
{"title":"Improving the fidelity of contextual data layouts using a Generalized Barycentric Coordinates framework","authors":"Shenghui Cheng, K. Mueller","doi":"10.1109/PACIFICVIS.2015.7156390","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156390","url":null,"abstract":"Contextual layouts preserve the context of the data with the associated attributes (variables). However, their linear mapping causes errors in the layout - similar data points and variable nodes may not map to similar regions, and vice versa. In this paper, we first unify the various data layout schemes and choose the Generalized Bary-centric Coordinates (GBC) plot as the standard way to describe them. Second, we propose three algorithms - distance spaced lay-out, iterative error reduction, and force directed adjustment - to reduce the layout error of variables to variables, data to variables and data to data, respectively. We find that the combination of these three algorithms can yield large improvements in the layout error and so achieve a more comprehensive layout. Third, we describe an interface, the GBC Error Explorer, which allows users to explore the error using a variety of visualization schemes combined with some interactions.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122015654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
Application of Pareto sets in quality control of series production in car manufacturing 帕累托集在汽车制造批量生产质量控制中的应用
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156369
Lars Huettenberger, Nils Feige, A. Ebert, C. Garth
{"title":"Application of Pareto sets in quality control of series production in car manufacturing","authors":"Lars Huettenberger, Nils Feige, A. Ebert, C. Garth","doi":"10.1109/PACIFICVIS.2015.7156369","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156369","url":null,"abstract":"In car manufacturing, quality management and control are important parts of the series process. In series production, many parts are controlled in various ways in some or all stages of assembly. While tactile measurements are mostly restricted to the points on an inspection plan, this restriction does not apply to optical measurements. We propose a method based on the theory of Pareto sets (multivariate topological analysis) to cope with the large amount of data produced by optical measurements and to find points of interest on the measured surface in addition to the inspection plan. We describe a method which automatically detects areas of systematic errors on a component and visualizes them on the triangulated surface. The visualization can help experts to decide, whether a detected feature is severe enough to be added to the inspection plan.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124398795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Illustrative Timelapse: A technique for illustrative visualization of particle-based simulations 说明性时间间隔:一种基于粒子模拟的说明性可视化技术
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156384
Mathieu Le Muzic, Manuela Waldner, J. Parulek, I. Viola
{"title":"Illustrative Timelapse: A technique for illustrative visualization of particle-based simulations","authors":"Mathieu Le Muzic, Manuela Waldner, J. Parulek, I. Viola","doi":"10.1109/PACIFICVIS.2015.7156384","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156384","url":null,"abstract":"Animated movies are a popular way to communicate complex phenomena in cell biology to the broad audience. Animation artists apply sophisticated illustration techniques to communicate a story, while trying to maintain a realistic representation of a complex dynamic environment. Since such hand-crafted animations are time-consuming and cost-intensive to create, our goal is to formalize illustration techniques used by artists to facilitate the automatic creation of visualizations generated from mesoscale particle-based molecular simulations. Our technique Illustrative Timelapse supports visual exploration of complex biochemical processes in dynamic environments by (1) seamless temporal zooming to observe phenomena in different temporal resolutions, (2) visual abstraction of molecular trajectories to ensure that observers are able to visually follow the main actors, (3) increased visual focus on events of interest, and (4) lens effects to preserve a realistic representation of the environment in the context. Results from a first user study indicate that visual abstraction of trajectories improves the ability to follow a story and is also appreciated by users. Lens effects increased the perceived amount of molecular motion in the environment while trading off traceability of individual molecules.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126908089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Variational circular treemaps for interactive visualization of hierarchical data 用于分层数据交互可视化的变分圆形树图
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156360
Haisen Zhao, Lin Lu
{"title":"Variational circular treemaps for interactive visualization of hierarchical data","authors":"Haisen Zhao, Lin Lu","doi":"10.1109/PACIFICVIS.2015.7156360","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156360","url":null,"abstract":"Visualization of hierarchical data is of great importance in information visualization. We present variational circular treemaps with a novel layout algorithm by solving disk packing as a continuous optimization problem. Our variational circular treemaps achieve higher space utilization ratio compared with the traditional circular treemaps and support natural interactions as focus+context distortions and drill-down and roll-up operations for data navigation. Experimental results show the effectiveness of our method for visualization and interaction.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114053764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
TrajRank: Exploring travel behaviour on a route by trajectory ranking TrajRank:通过轨迹排名来探索一条路线上的旅行行为
2015 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2015-04-14 DOI: 10.1109/PACIFICVIS.2015.7156392
Min Lu, Zuchao Wang, Xiaoru Yuan
{"title":"TrajRank: Exploring travel behaviour on a route by trajectory ranking","authors":"Min Lu, Zuchao Wang, Xiaoru Yuan","doi":"10.1109/PACIFICVIS.2015.7156392","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2015.7156392","url":null,"abstract":"In this paper, we propose a novel visual analysis method TrajRank to study the travel behaviour of vehicles along one route. We focus on the spatial-temporal distribution of travel time, i.e., the time spent on each road segment and the travel time variation in rush/non-rush hours. TrajRank first allows users to interactively select a route, and segment it into several road segments. Then trajectories passing this route are automatically extracted. These trajectories are ranked on each road segment according to travel time and further clustered according to the rankings on all road segments. Based on the above ranking analysis, we provide a temporal distribution view showing the temporal distribution of travel time and a ranking diagram view showing the spatial variation of travel time. With real taxi GPS data, we present three use cases and an informal user study to show the effectiveness and usability of our method.","PeriodicalId":177381,"journal":{"name":"2015 IEEE Pacific Visualization Symposium (PacificVis)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122372245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 42
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