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Coordinated and Multiple Views in Exploratory Visualization (CMV'05)最新文献

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Visual data analysis using tracked statistical measures within parallel coordinate representations 在平行坐标表示中使用跟踪统计度量的可视化数据分析
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.21
Daniel Ericson, Handledare Jimmy Johansson
With our increasing ability to capture or produce and to store large multivariate data, these data sets are increasing both in size and complexity. Many conventional techniques for visualizing multivariate data suffer from problems like cluttered displays since they are not designed to handle these amounts of entries. We present a novel method to overcome this problem by interactively selecting and displaying statistics derived from the data in a separate view. Changes in the display are visually tracked by animation and vector plotting for easy comparison of various measures applied to different subsets of the data.
随着我们获取、生成和存储大型多元数据的能力不断增强,这些数据集的规模和复杂性也在不断增加。许多用于可视化多变量数据的传统技术都存在显示混乱等问题,因为它们不是为处理这些数量的条目而设计的。我们提出了一种新的方法,通过在一个单独的视图中交互式地选择和显示来自数据的统计数据来克服这个问题。通过动画和矢量绘图直观地跟踪显示的变化,以便于比较应用于不同数据子集的各种措施。
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引用次数: 14
MUSA - a prototype for multiple-step aggregation visualization 一个多步骤聚合可视化的原型
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.12
Tao Ni
It is a common task when analyzing a large dataset (e.g., census database) to create some kind of overview of the original dataset, which is small enough to be easily manipulated, while remains the key characteristics of the data. Many aggregation techniques have been proposed to help users better understand the dataset and find desired information in it. However, the user can easily get lost after several aggregation operations, since there is rarely mechanism facilitating the user to remember what he or she has done in previous steps. In this paper, we present a prototype, namely MUSA, for multiple-step aggregation visualization. We aimed at designing a tool not only to help users obtain various levels of overviews to narrow their selections, but also to effectively visualize the aggregation processes to enhance the context awareness. We also conducted an informal user study to evaluate the tool.
在分析大型数据集(例如,人口普查数据库)时,创建原始数据集的某种概述是一项常见任务,该数据集足够小,易于操作,同时保留数据的关键特征。已经提出了许多聚合技术来帮助用户更好地理解数据集并在其中找到所需的信息。但是,在进行了几个聚合操作之后,用户很容易迷失方向,因为很少有机制可以帮助用户记住他或她在前面的步骤中做了什么。本文提出了一个多步聚合可视化的原型,即MUSA。我们的目标是设计一个工具,不仅可以帮助用户获得不同层次的概述,以缩小他们的选择范围,而且还可以有效地可视化聚合过程,以增强上下文感知。我们还进行了非正式的用户研究来评估该工具。
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引用次数: 0
Coordinated parallel views for the exploratory analysis of microarray time-course data 微阵列时间过程数据探索性分析的协调并行视图
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.5
Paul Craig, Jessie Kennedy, Andrew Cumming
Microarray time-course data relate to the recorded activity of thousands of genes, in parallel, over multiple discrete points in time during a biological process. Existing techniques that attempt to support the exploratory analysis of this data rely on static clustering views, interactive clustering views or coordinated clustering and graph views and are limited in that they fail to account for less dominant patterns in the data such as those that involve a subset of genes or a limited interval of the time-course. In this paper, we describe an alternative approach which avoids this limitation by using combined parallel views to present different complementary aspects of the data (i.e. timing, activity and change-in-activity). An example of how the views are combined to reveal significant patterns in the data (including those which cannot be found using clustering based techniques) is described and used to illustrate the benefits of combined parallel views to support exploratory-analysis of this type of data.
微阵列时间过程数据涉及在生物过程中多个离散时间点上并行记录的数千个基因的活动。现有的技术试图支持对这些数据的探索性分析,这些技术依赖于静态聚类视图、交互式聚类视图或协调聚类和图形视图,并且它们无法解释数据中较少的主导模式,例如那些涉及基因子集或有限时间间隔的数据。在本文中,我们描述了一种替代方法,该方法通过使用组合并行视图来呈现数据的不同互补方面(即时间,活动和活动中的变化)来避免这种限制。本文描述了一个如何组合视图以揭示数据中的重要模式(包括使用基于聚类的技术无法找到的模式)的示例,并使用该示例说明了组合并行视图支持对此类数据进行探索性分析的好处。
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引用次数: 8
Prism: a multi-view visualization tool for multi-physics simulation Prism:用于多物理场仿真的多视图可视化工具
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.15
D. Rogers, C. Garasi
Complex simulations (in particular, those involving multiple coupled physics) cannot be understood solely using geometry-based visualizations. Such visualizations are necessary in interpreting results and gaining insights into kinematics, however they are insufficient when striving to understand why or how something happened, or when investigating a simulation's dynamic evolution. For multiphysics simulations (e.g. those including solid dynamics with thermal conduction, magnetohydrodynamics, and radiation hydrodynamics) complex interactions between physics and material properties take place within the code which must be investigated in other ways. Drawing on the extensive previous work in view coordination, brushing and linking techniques, and powerful visualization libraries, we have developed Prism, an application targeted for a specific analytic need at Sandia National Laboratories. This multiview scientific visualization tool tightly integrates geometric and phase space views of simulation data and material models. Working closely with analysts, we have developed this production tool to promote understanding of complex, multiphysics simulations. We discuss the current implementation of Prism, along with specific examples of results obtained by using the tool.
复杂的模拟(特别是那些涉及多重耦合物理的)不能仅仅使用基于几何的可视化来理解。这样的可视化在解释结果和获得运动学见解时是必要的,但是在努力理解事情发生的原因或如何发生时,或者在调查模拟的动态演变时,它们是不够的。对于多物理场模拟(例如,包括热传导固体动力学、磁流体动力学和辐射流体动力学),物理和材料特性之间的复杂相互作用发生在代码中,必须以其他方式进行研究。利用之前在视图协调、刷刷和链接技术以及强大的可视化库方面的大量工作,我们开发了Prism,这是一款针对桑迪亚国家实验室特定分析需求的应用程序。这个多视图科学可视化工具紧密集成了仿真数据和材料模型的几何和相空间视图。与分析人员密切合作,我们开发了这个生产工具,以促进对复杂的多物理场模拟的理解。我们将讨论Prism的当前实现,以及使用该工具获得的具体结果示例。
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引用次数: 2
Interactive visual analysis of multi-parameter families of function graphs 函数图多参数族的交互式可视化分析
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.10
K. Matkovič, J. Juric, Z. Konyha, J. Krasser, H. Hauser
The paper describes a method developed for interactive data visualization and exploration with applications in the automotive industry. The input data set contains a large number of function graphs. Each of the graphs is characterized by a set of basic attributes. The technique that is used for visualization includes two linked views: a map view (or attribute space view), where all function graphs are represented as a point or an icon on the map, and a linked function graph view. The map view provides additional visualization possibilities and allows user interaction. Additional features like brushing in both views, graph management, and related issues like interpolation of the graphs are described.
本文介绍了一种用于交互式数据可视化和探索的方法,并在汽车工业中应用。输入数据集包含大量的函数图。每个图都有一组基本属性。用于可视化的技术包括两个链接视图:一个是地图视图(或属性空间视图),其中所有函数图都表示为地图上的一个点或一个图标,另一个是链接函数图视图。地图视图提供了额外的可视化可能性,并允许用户交互。其他特性,如两个视图中的刷图,图形管理,以及相关的问题,如图形的插值。
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引用次数: 4
A multiple view approach to support common ground in distributed and synchronous geo-collaboration 支持分布式和同步地理协作的公共基础的多视图方法
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.2
G. Convertino, C. Ganoe, W. A. Schafer, B. Yost, John Millar Carroll
In this paper we investigate strategies to support knowledge sharing in distributed, synchronous collaboration. Our goal is to propose, justify, and assess a multiple view approach to support common ground in geo-collaboration within multi-role teams. We argue that a collaborative workspace, which includes multiple role-specific views coordinated with a team view, affords a clear separation between role-specific and shared data, enables the team to filter out role-specific details and share strategic knowledge, and allows serendipitous learning about knowledge and expertise within the team. We discuss some key issues that need to be addressed when designing multiple views as a collaborative visualization. We illustrate the design features of a geo-collaborative prototype that address these issues in the context of two collaborative scenarios. We finally describe a laboratory method for investigating how multi-role teams establish common ground while the amount of prior shared knowledge and the type of visualization are experimentally manipulated.
本文研究了分布式、同步协作中支持知识共享的策略。我们的目标是提出、证明和评估一种多视图方法,以支持多角色团队中地理协作的共同基础。我们认为,协作工作空间,包括多个角色特定视图与团队视图的协调,提供了角色特定数据和共享数据之间的清晰分离,使团队能够过滤出角色特定的细节并共享战略知识,并允许团队内部偶然的知识和专业知识学习。我们将讨论在将多个视图设计为协作可视化时需要解决的一些关键问题。我们举例说明了在两个协作场景的背景下解决这些问题的地理协作原型的设计特征。我们最后描述了一种实验室方法,用于研究多角色团队如何在实验操作之前共享知识的数量和可视化类型的情况下建立共同点。
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引用次数: 65
SpringView: cooperation of radviz and parallel coordinates for view optimization and clutter reduction SpringView: radviz和并行坐标的合作,用于视图优化和减少杂波
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.17
E. Bertini, L. Dell'Aquila, G. Santucci
In this paper we integrate radviz and parallel coordinates, two methods able to handle multidimensional datasets, exploiting their contrasting characteristics. From on side radviz offers good direct data manipulation (i.e., brushing) techniques and low cluttering but it fails in providing visualization of quantitative information; conversely, parallel coordinates clearly shows the values of data attributes and their ranges but suffers from high cluttering also on small datasets and presents tedious manipulation techniques. We developed a prototype, called SpringView, that allows for simultaneously viewing both radviz and parallel coordinates and implements several useful techniques to manipulate the data, both interactively and, more interestingly, automatically. We challenged our approach against two well know multidimensional datasets, proving its effectiveness.
在本文中,我们将radviz和平行坐标这两种能够处理多维数据集的方法结合起来,利用它们的对比特性。从另一方面看,radviz提供了良好的直接数据操作(即刷刷)技术和低杂乱性,但它无法提供定量信息的可视化;相反,平行坐标清楚地显示了数据属性的值及其范围,但在小数据集上也存在高度混乱的问题,并且呈现繁琐的操作技术。我们开发了一个名为SpringView的原型,它允许同时查看radviz和parallel坐标,并实现了一些有用的技术来操作数据,包括交互式的,更有趣的是,自动的。我们针对两个众所周知的多维数据集挑战了我们的方法,证明了它的有效性。
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引用次数: 44
Interactive exploration of unsteady 3D flow with linked 2D/3D texture advection 非定常三维流动与二维/三维纹理平流的交互探索
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.9
T. Schafhitzel, D. Weiskopf, T. Ertl
In this paper, we present linked 2D/3D texture advection for the interactive exploration of 3D flow. 3D texture advection facilitates a dense representation of the 3D structure of unsteady flow but is subject to problems of occlusion and clutter. Therefore, it is difficult for the user to explore features in occluded regions. We overcome the occlusion problem by adopting an additional 2D representation on several parallel slices through the data set. By linking these two views, our approach allows the user to gain unrestricted access to all spatial areas of the data set and, at the same time, retain a view on the 3D nature of the flow. Furthermore, the 2D view is used to visualize an additional attribute of the data set by color coding, such as vortex strength, temperature, or velocity magnitude. The 2D view lets the user explore flow features by selecting interesting values in this attribute space. A brushing and linking mechanism provides immediate feedback by highlighting selected data values in both the 2D and 3D representations. Finally, we discuss a GPU implementation of our visualization approach that is the technical basis for interactive exploration and real-time visualization without the need for preprocessing.
在本文中,我们提出了链接的二维/三维纹理平流,用于三维流的交互式探索。三维纹理平流有利于非定常流的三维结构的密集表示,但受到遮挡和杂波的问题。因此,用户很难探索被遮挡区域的特征。我们通过在数据集的多个平行切片上采用额外的2D表示来克服遮挡问题。通过链接这两个视图,我们的方法允许用户不受限制地访问数据集的所有空间区域,同时保留流的3D属性视图。此外,2D视图用于通过颜色编码来可视化数据集的附加属性,例如涡旋强度、温度或速度大小。2D视图允许用户通过在这个属性空间中选择感兴趣的值来探索流特征。刷刷和链接机制通过在2D和3D表示中突出显示选定的数据值来提供即时反馈。最后,我们讨论了可视化方法的GPU实现,这是无需预处理的交互式探索和实时可视化的技术基础。
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引用次数: 7
Exploration of dimensionality reduction for text visualization 探索文本可视化的降维方法
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.8
Shiping Huang, M. Ward, E. Rundensteiner
In the text document visualization community, statistical analysis tools (e.g., principal component analysis and multidimensional scaling) and neurocomputation models (e.g., self-organizing feature maps) have been widely used for dimensionality reduction. Often the resulting dimensionality is set to two, as this facilitates plotting the results. The validity and effectiveness of these approaches largely depend on the specific data sets used and semantics of the targeted applications. To date, there has been little evaluation to assess and compare dimensionality reduction methods and dimensionality reduction processes, either numerically or empirically. The focus of this paper is to propose a mechanism for comparing and evaluating the effectiveness of dimensionality reduction techniques in the visual exploration of text document archives. We use multivariate visualization techniques and interactive visual exploration to study three problems: (a) Which dimensionality reduction technique best preserves the interrelationships within a set of text documents; (b) What is the sensitivity of the results to the number of output dimensions; (c) Can we automatically remove redundant or unimportant words from the vector extracted from the documents while still preserving the majority of information, and thus make dimensionality reduction more efficient. To study each problem, we generate supplemental dimensions based on several dimensionality reduction algorithms and parameters controlling these algorithms. We then visually analyze and explore the characteristics of the reduced dimensional spaces as implemented within a linked, multiview multidimensional visual exploration tool, XmdvTool. We compare the derived dimensions to features known to be present in the original data. Quantitative measures are also used in identifying the quality of results using different numbers of output dimensions.
在文本文档可视化社区中,统计分析工具(如主成分分析和多维缩放)和神经计算模型(如自组织特征映射)已被广泛用于降维。通常将结果维度设置为2,因为这便于绘制结果。这些方法的有效性和有效性在很大程度上取决于所使用的特定数据集和目标应用程序的语义。迄今为止,很少有评估和比较降维方法和降维过程,无论是数值上还是经验上。本文的重点是提出一种比较和评估降维技术在文本文档档案视觉探索中的有效性的机制。我们使用多元可视化技术和交互式视觉探索来研究三个问题:(a)哪种降维技术最好地保留了一组文本文档中的相互关系;(b)结果对输出维度数目的敏感性如何;(c)能否在保留大部分信息的情况下,从文件提取的向量中自动删除冗余或不重要的词,从而提高降维效率。为了研究每个问题,我们基于几种降维算法和控制这些算法的参数生成补充维。然后,我们可视化地分析和探索在链接的多视图多维可视化探索工具XmdvTool中实现的降维空间的特征。我们将导出的尺寸与原始数据中已知的特征进行比较。定量测量也用于使用不同数量的输出维度来确定结果的质量。
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引用次数: 60
A collaborative multi-view virtual environment for molecular visualization and modeling 用于分子可视化和建模的协作多视图虚拟环境
Pub Date : 2005-07-05 DOI: 10.1109/CMV.2005.1
J. Chastine, Ying Zhu, J. Brooks, G. Owen, R. Harrison, I. Weber
Molecular modeling has been a long-standing research area for biologists. However, the existing molecular modeling software lacks strong support for collaborative research. In this paper, we describe our effort to develop a collaborative multiview virtual environment for molecular visualization and modeling. In our virtual environment, the users are able to visualize large molecular structures in real-time, create their own view, or share their view with others in the system. The system allows for individual or coordinated collaborative manipulation of the virtual molecular model. Our virtual environment is integrated with a molecular dynamics simulator, and therefore our system is not merely a visualization tool, but an environment where biologists can collaboratively construct their models and test their hypotheses.
分子模型一直是生物学家长期研究的领域。然而,现有的分子建模软件缺乏对协同研究的有力支持。在本文中,我们描述了我们为分子可视化和建模开发一个协作多视图虚拟环境的努力。在我们的虚拟环境中,用户能够实时可视化大型分子结构,创建他们自己的视图,或与系统中的其他人共享他们的视图。该系统允许个人或协调的虚拟分子模型的协作操作。我们的虚拟环境与分子动力学模拟器集成在一起,因此我们的系统不仅仅是一个可视化工具,而是一个生物学家可以协作构建模型和测试假设的环境。
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引用次数: 15
期刊
Coordinated and Multiple Views in Exploratory Visualization (CMV'05)
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