2016 IEEE Pacific Visualization Symposium (PacificVis)最新文献_第2页

Visualization of origin-destination matrices using a connection barchart and coordinated maps 使用连接条形图和协调图的始发-目的地矩阵的可视化

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465268

Juan C. Ibarra, John A. Triana, J. T. Hernández

引用次数: 2

Mathematical foundations of arc length-based aspect ratio selection 弧长纵横比选择的数学基础

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465245

Fubo Han, Yunhai Wang, Jian Zhang, O. Deussen, Baoquan Chen

{"title":"Mathematical foundations of arc length-based aspect ratio selection","authors":"Fubo Han, Yunhai Wang, Jian Zhang, O. Deussen, Baoquan Chen","doi":"10.1109/PACIFICVIS.2016.7465245","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2016.7465245","url":null,"abstract":"The aspect ratio of a plot can strongly influence the perception of trends in the data. Arc length based aspect ratio selection (AL) has demonstrated many empirical advantages over previous methods. However, it is still not clear why and when this method works. In this paper, we attempt to unravel its mystery by exploring its mathematical foundation. First, we explain the rationale why this method is parameterization invariant and follow the same rationale to extend previous methods which are not parameterization invariant. As such, we propose maximizing weighted local curvature (MLC), a parameterization invariant form of local orientation resolution (LOR) and reveal the theoretical connection between average slope (AS) and resultant vector (RV). Furthermore, we establish a mathematical connection between AL and banking to 45 degrees and derive the upper and lower bounds of its average absolute slopes. Finally, we conduct a quantitative comparison that revises the understanding of aspect ratio selection methods in three aspects: (1) showing that AL, AWO and RV always perform very similarly while MS is not; (2) demonstrating the advantages in the robustness of RV over AL; (3) providing a counterexample where all previous methods produce poor results while MLC works well.","PeriodicalId":129600,"journal":{"name":"2016 IEEE Pacific Visualization Symposium (PacificVis)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129713239","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

Efficient unsteady flow visualization with high-order access dependencies 具有高阶访问依赖关系的高效非定常流场可视化

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465254

Jiang Zhang, Hanqi Guo, Xiaoru Yuan

引用次数: 17

Screen-space silhouettes for visualizing ensembles of 3D isosurfaces 用于可视化3D等值面的集合的屏幕空间轮廓

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465271

I. Demir, J. Kehrer, R. Westermann

引用次数: 23

A visual analytics approach to high-dimensional logistic regression modeling and its application to an environmental health study 高维逻辑回归模型的可视化分析方法及其在环境健康研究中的应用

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465261

Chong Zhang, J. Yang, F. Zhan, Xi Gong, J. Brender, P. Langlois, S. Barlowe, Ye Zhao

{"title":"A visual analytics approach to high-dimensional logistic regression modeling and its application to an environmental health study","authors":"Chong Zhang, J. Yang, F. Zhan, Xi Gong, J. Brender, P. Langlois, S. Barlowe, Ye Zhao","doi":"10.1109/PACIFICVIS.2016.7465261","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2016.7465261","url":null,"abstract":"In the domain of epidemiology, logistic regression modeling is widely used to explain the relationships among explanatory variables and dichotomous outcome variables. However, logistic regression modeling faces challenges such as overfitting, confounding, and multicollinearity when there is a large number of explanatory variables. For example, in the birth defect study presented in this paper, variable selection for building high quality models to identify risk factors from hundreds of pollutant variables is difficult. To address this problem, we propose a novel visual analytics approach to logistic regression modeling for high-dimensional datasets. It leverages the traditional modeling pipeline by providing (1) intuitive visualizations for inspecting statistical indicators and the relationships among the variables and (2) a seamless, effective dimension reduction pipeline for selecting variables for inclusion in high quality logistic regression models. A fully working prototype of this approach has been developed and successfully applied to the birth defect study, which illustrates its effectiveness and efficiency. Its application in an insurance policy study and feedback from domain experts further demonstrate its usefulness.","PeriodicalId":129600,"journal":{"name":"2016 IEEE Pacific Visualization Symposium (PacificVis)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115764090","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: 17

Effects of curves on graph perception 曲线对图形感知的影响

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465270

Weidong Huang, P. Eades, Seok-Hee Hong, H. Duh

引用次数: 9

Multilayer graph edge bundling 多层图边缘捆绑

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465267

Romain Bourqui, D. Ienco, A. Sallaberry, P. Poncelet

引用次数: 17

Accelerated visualization of transparent molecular surfaces in molecular dynamics 分子动力学中透明分子表面的加速可视化

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465258

Adam Jurcík, J. Parulek, Jirí Sochor, B. Kozlíková

{"title":"Accelerated visualization of transparent molecular surfaces in molecular dynamics","authors":"Adam Jurcík, J. Parulek, Jirí Sochor, B. Kozlíková","doi":"10.1109/PACIFICVIS.2016.7465258","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2016.7465258","url":null,"abstract":"The reactivity of the biomolecular structures is highly influenced by their structural features. Thus, studying these features along with the exploration of their dynamic behavior helps to understand the processes ongoing in living cells. This can be reached by the visual representation of these processes as visualization is one of the most natural ways to convey such information. However, none of the currently available techniques provides the biochemists with an intuitive real-time representation of the dynamic movements of molecules and precise geometrical based extraction of their structural features performed instantly. In this paper we introduce such a technique enabling the user to compute and also to visualize the molecular surface along with inner voids. To obtain a better insight into the molecule, our technique enables to visualize the molecular surface transparently. The opacity can be adjusted by changing user-defined parameters in order to enhance the perception of the surfaces of inner voids. All integrated algorithms run in real-time which gives the user a big variety of exploration possibilities. The importance of our approach is even amplified with respect to the fact that currently the size of molecular dynamics simulations is increasing dramatically and offline rendering thus becomes impracticable. The usability of our technique was evaluated by the domain experts.","PeriodicalId":129600,"journal":{"name":"2016 IEEE Pacific Visualization Symposium (PacificVis)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115820184","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: 16

MovementSlicer: Better Gantt charts for visualizing behaviors and meetings in movement data MovementSlicer:更好的甘特图，用于在移动数据中可视化行为和会议

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465265

Shrey Gupta, Maxime Dumas, Michael J. McGuffin, T. Kapler

{"title":"MovementSlicer: Better Gantt charts for visualizing behaviors and meetings in movement data","authors":"Shrey Gupta, Maxime Dumas, Michael J. McGuffin, T. Kapler","doi":"10.1109/PACIFICVIS.2016.7465265","DOIUrl":"https://doi.org/10.1109/PACIFICVIS.2016.7465265","url":null,"abstract":"Movement data collected through GPS or other technologies is increasingly common, but is difficult to visualize due to overplotting and occlusion of movements when displayed on 2D maps. An additional challenge is the extraction of useful higher-level information (such as meetings) derived from the raw movement data. We present a design study of MovementSlicer, a tool for visualizing the places visited, and behaviors of, individual actors, and also the meetings between multiple actors. We first present a taxonomy of visualizations of movement data, and then consider tasks to support when analyzing movement data and especially meetings of multiple actors. We argue that Gantt charts have many advantages for understanding the movements and meetings of small groups of moving entities, and present the design of a Gantt chart that can nest people within locations or locations within people along the vertical axis, and show time along the horizontal axis. The rows of our Gantt chart are sorted by activity level and can be filtered using a weighted adjacency matrix showing meetings between people. Empty time intervals in the Gantt chart can be automatically folded, with smoothly animated transitions, yielding a multi-focal view. Case studies demonstrate the utility of our prototype.","PeriodicalId":129600,"journal":{"name":"2016 IEEE Pacific Visualization Symposium (PacificVis)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130107188","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: 16

Visualizing the variations of ensemble of isosurfaces 可视化等面集合的变化

2016 IEEE Pacific Visualization Symposium (PacificVis) Pub Date : 2016-04-19 DOI: 10.1109/PACIFICVIS.2016.7465272

Subhashis Hazarika, Soumya Dutta, Han-Wei Shen

引用次数: 13