检索结果-内蒙古大学图书馆

IEEE Symposium on Visual Analytics Science and Technology (VAST)

作者： Juri Buchmüller Fabian Fischer Dirk Streeb Daniel A. Keim Data Analysis and Visualization Group University of Konstanz Germany

Analyzing and correlating movement and communication data is challenging. To gather insights and gain knowledge out of such datasets, we propose a visual analytics system. We apply automated clustering techniques and propose a combination of various visualizations to provide overviews. We support the analyst in exploring the data to eventually enhance situational awareness in complex analysis scenarios. To evaluate our approach, we apply our techniques in the context of the VAST 2015 Grand Challenge (GC). Within this challenge, we successfully identify suspicious patterns and interesting groups of distinctive behavior among visitors of an amusement park, and correlate them with their respective communication patterns to gain insights.

关键词： Visual analytics data visualization Heating Electronic mail data analysis Context

来源：评论

学校读者我要写书评

暂无评论

visualization of Biomolecular Structures: State of the Art 17

Visualization of Biomolecular Structures: State of the Art

引用

17th Eurographics Conference on visualization - State of the Art Reports, EuroVis-STAR 2015

作者： Kozlíková, B. Krone, M. Lindow, N. Falk, M. Baaden, M. Baum, D. Viola, I. Parulek, J. Hege, H.-C. Faculty of Informatics Masaryk University Czech Republic Visualization Research Center University of Stuttgart Germany Department of Visual Data Analysis Zuse Institute Berlin Germany Immersive Visualization Group Linköping University Sweden Laboratoire de Biochimie Théorique UPR 9080 CNRS France Department of Informatics University of Bergen Norway Institute of Computer Graphics and Algorithms Vienna University of Technology Austria

ISBN: (纸本)9783905674996

Structural properties of molecules are of primary concern in many fields. This report provides a comprehensive overview on techniques that have been developed in the fields of molecular graphics and visualization with a focus on applications in structural biology. The field heavily relies on computerized geometric and visual representations of three-dimensional, complex, large, and time-varying molecular structures. The report presents a taxonomy that demonstrates which areas of molecular visualization have already been extensively investigated and where the field is currently heading. It discusses visualizations for molecular structures, strategies for efficient display regarding image quality and frame rate, covers different aspects of level of detail, and reviews visualizations illustrating the dynamic aspects of molecular simulation data. The report concludes with an outlook on promising and important research topics to enable further success in advancing the knowledge about interaction of molecular structures. © The Eurographics Association 2015.

关键词： visualization

来源：评论

学校读者我要写书评

暂无评论

Numerical examination of a model rotor in brownout conditions

Numerical examination of a model rotor in brownout condition...

引用

70th American Helicopter Society International Annual Forum 2014

作者： Kutz, Benjamin M. Günther, Tobias Rumpf, Andreas Kuhn, Alexander University of Stuttgart Institute of Aerodynamics and Gasdynamics Germany University of Magdeburg Visual Computing Group Germany Zuse Institute Berlin Visualization and Data Analysis Germany

ISBN: (纸本)9781632666918

In the present study a flow simulation of a rotor hovering in ground effect was performed and compared to an experimental study from literature. Different reconstruction schemes in the finite volume flow solver were employed, leading to a computation of second and fifth order accuracy in space. The higher order computation was also performed on different grids with six and 23 million grid cells. The integral simulation values were compared to the experimental results and other literature, showing good agreement. Further on, the vortex conservation of the several schemes was compared. The higher order computation yields a much longer vortex preservation and a much better shape approximation, especially with a fine spatial resolution of the computational domain. Moreover, brownout simulations were done in a one-way coupled post processing mode of the flow computation. The results show that a good preservation of the vortices is crucial for a following brownout simulation, which leads to the necessity of a fine resolution and high order computations. The influence of the particle size was examined, leading to the finding that especially a mix of big and small particles in the sediment bed may lead to severe brownout conditions, when flying near the ground. The blade tip vortices are interacting with the sediment and are one of the main drivers of particle entrainment in brownout conditions. ©2014. All rights reserved.

关键词： Vortex flow

来源：评论

学校读者我要写书评

暂无评论

Visual exploration of relationships between document clusters

Visual exploration of relationships between document cluster...

引用

5th International Conference on Information visualization Theory and Applications, IVAPP 2014

作者： Jusufi, Ilir Kerren, Andreas Liu, Jiayi Zimmer, Björn Linnaeus University Department of Computer Science ISOVIS Group Växjö Sweden Institute for Data Analysis and Visualization Department of Computer Science University of California Davis United States

ISBN: (纸本)9789897580055

The visualization of networks with additional attributes attached to the network elements is one of the ongoing challenges in the information visualization domain. Such so-called multivariate networks regularly appear in various application fields, for instance, in data sets which describe friendship networks or co-authorship networks. Here, we focus on networks that are based on text documents, i.e., the network nodes represent documents and the edges show relationships between them. Those relationships can be derived from common topics or common co-authors. Attached attributes may be specific keywords (topics), keyword frequencies, etc. The analysis of such multivariate networks is challenging, because a deeper understanding of the data provided depends on effective visualization and interaction techniques that are able to bring all types of information together. In addition, automatic analysis methods should be used to support the analysis process of potentially large amounts of data. In this paper, we present a visualization approach that tackles those analysis problems. Our implementation provides a combination of new techniques that shows intra-cluster and inter-cluster relations while giving insight into the content of the cluster attributes. Hence, it facilitates the interactive exploration of the networks under consideration by showing the relationships between node clusters in context of network topology and multivariate attributes.

关键词： visualization

来源：评论

学校读者我要写书评

暂无评论

PhonMatrix: Visualizing co-occurrence constraints of sounds 51

PhonMatrix: Visualizing co-occurrence constraints of sounds

引用

51st Annual Meeting of the Association for Computational Linguistics, ACL 2013

作者： Mayer, Thomas Rohrdantz, Christian Research Unit Quantitative Language Comparison Philipps University of Marburg Data Analysis and Visualization Group University of Konstanz

This paper describes the online tool PhonMatrix, which analyzes a word list with respect to the co-occurrence of sounds in a specified context within a word. The co-occurrence counts from the user-specified context are statistically analyzed according to a number of association measures that can be selected by the user. The statistical values then serve as the input for a matrix visualization where rows and columns represent the relevant sounds under investigation and the matrix cells indicate whether the respective ordered pair of sounds occurs more or less frequently than expected. The usefulness of the tool is demonstrated with three case studies that deal with vowel harmony and similar place avoidance patterns. © 2013 Association for Computational Linguistics.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Fingerprint matrices: Uncovering the dynamics of social networks in prose literature

Fingerprint matrices: Uncovering the dynamics of social netw...

引用

15th Eurographics Conference on visualization, EuroVis 2013

作者： Oelke, D. Kokkinakis, D. Keim, D.A. DIPF Frankfurt Germany Sprakbanken Group of the Department of Swedish University of Gothenburg Sweden Data Analysis and Visualization Group University of Konstanz Germany

In prose literature often complex dynamics of interpersonal relationships can be observed between the different characters. Traditionally, node-link diagrams are used to depict the social network of a novel. However, static graphs can only visualize the overall social network structure but not the development of the networks over the course of the story, while dynamic graphs have the serious problem that there are many sudden changes between different portions of the overall social network. In this paper we explore means to show the relationships between the characters of a plot and at the same time their development over the course of a novel. Based on a careful exploration of the design space, we suggest a new visualization technique called Fingerprint Matrices. A case study exemplifies the usage of Fingerprint Matrices and shows that they are an effective means to analyze prose literature with respect to the development of relationships between the different characters. © 2013 The Author(s).

关键词：

来源：评论

学校读者我要写书评

暂无评论

Optimization strategy for the design of ribbed plastic components

Zeitschrift Kunststofftechnik/Journal of Plastics Technology

引用

Zeitschrift Kunststofftechnik/Journal of Plastics Technology 2014年第4期2014卷 160-175页

作者： Schöneich, Marc Stommel, Markus Kratz, Andrea Zobel, Valentin Scheuermann, Gerik Hotz, Ingrid Burgeth, Bernhard Saarland University Saarbrücken66123 Germany Technical University Dortmund DortmundD-44227 Germany Department of Visualization and Data Analysis Zuse Institute Berlin Berlin-Dahlem14195 Germany Image and Signal Processing Group Institute for Informatics University of Leipzig Leipzig04105 Germany Braunschweig38108 Germany Department of Mathematics Saarland University Saarbrücken66123 Germany

The engineer is supported for the design of ribbed plastic components by basic guidelines concerning the shape and the position of the ribs. Thus, the experience and intuition of the individual engineer plays an important role. For this reason, a component with an optimal rib structure cannot be guaranteed. In this publication a new strategy is presented as assistance for the design of ribbed plastic components. The guidance of the design of rib structures in injection molded plastic parts by tensor visualization will result in an optimized rib structure which leads to stiffer parts when identical material is used. FE-simulations as well as experimental tests validate the optimization potential of tensor visualization for the design of ribbed plastic components. © 2014 Carl Hanser Verlag, München.

关键词： visualization

来源：评论

学校读者我要写书评

暂无评论

Visual-interactive querying for multivariate research data repositories using bag-of-words 13

Visual-interactive querying for multivariate research data r...

引用

13th ACM/IEEE-CS Joint Conference on Digital Libraries, JCDL 2013

作者： Scherer, Maximilian Landesberger, Tatianavon Schreck, Tobias TU Darmstadt Interactive Graphics Systems Group Fraunhoferstr. 5 64283 Darmstadt Germany Data Analysis and Visualization Group University of Konstanz Universitaetsstr 10 78457 Konstanz Germany

ISBN: (纸本)9781450320764

Large amounts of multivariate data are collected in different areas of scientific research and industrial production. These data are collected, archived and made publicly available by research data repositories. In addition to meta-data based access, content-based approaches are highly desirable to effectively retrieve, discover and analyze data sets of interest. Several such methods, that allow users to search for particular curve progressions, have been proposed. However, a major challenge when providing content-based access interactive feedback during query formulation has not received much attention yet. This is important because it can substantially improve the user's search effectiveness. In this paper, we present a novel interactive feedback approach for content-based access to multivariate research data. Thereby, we enable query modalities that were not available for multivariate data before. We provide instant search results and highlight query patterns in the result set- Real-time search suggestions give a.11 overview of important patterns to look for in the data repository. For this purpose, we develop a bag-of-words index for multivariate data as the back-end of our approach. We apply our method to a large repository of multivariate data from the climate research domain. We describe a use-case for the discovery of interesting patterns in maritime climate research using our new visual-interactive query tools. Copyright © 2013 by the Association for Computing Machinery, Inc. (ACM).

关键词： Content based retrieval

来源：评论

学校读者我要写书评

暂无评论

Event identification for local areas using social media streaming data

Event identification for local areas using social media stre...

引用

3rd ACM SIGMOD Workshop on databases and Social Networks, DBSocial 2013

作者： Weiler, Andreas Scholl, Marc H. Wanner, Franz Rohrdantz, Christian Database and Information Systems Group University of Konstanz Box D188 78457 Konstanz Germany Data Analysis and Visualization Group University of Konstanz Box D78 78457 Konstanz Germany

ISBN: (纸本)9781450321914

Unprecedented success and active usage of social media services result in massive amounts of user-generated data. An increasing interest in the contained information from social media data leads to more and more sophisticated analysis and visualization applications. Because of the fast pace and distribution of news in social media data it is an appropriate source to identify events in the data and directly display their occurrence to analysts or other users. This paper presents a method for event identification in local areas using the Twitter data stream. We implement and use a combined log-likelihood ratio approach for the geographic and time dimension of real-life Twitter data in predefined areas of the world to detect events occurring in the message contents. We present a case study with two interesting scenarios to show the usefulness of our approach. Copyright 2013 ACM.

关键词： Media streaming

来源：评论

学校读者我要写书评

暂无评论

Mass-dependent integral curves in unsteady vector fields

Mass-dependent integral curves in unsteady vector fields

引用

15th Eurographics Conference on visualization, EuroVis 2013

作者： Günther, Tobias Kuhn, Alexander Kutz, Benjamin Theisel, Holger Visual Computing Group University of Magdeburg Germany Visualization and Data Analysis Zuse Institute Berlin Germany Institute of Aerodynamics and Gas Dynamics University of Stuttgart Germany

Recent research in flow visualization is focusing on the analysis of time-dependent, but mass-less particles. However, in many application scenarios, the mass of particles and their resulting inertia - is essential in understanding fluid mechanics. This includes critical processes, such as dust particles interacting with aircraft (e.g., brownor white-out effects) and particle separation based on density variation. In this paper, we contribute a generalized description of mass-dependent particle trajectories and apply existing unsteady flow visualization methods to the mass-dependent case. This comprises the extension of common concepts, i.e., path lines, streak lines, and time lines. Furthermore, we introduce a new class of integral curves, called mass lines that effectively visualizes mass separation and captures mass-related features in unsteady flow fields that are inaccessible using traditional methods. We demonstrate the applicability of our method, using a number of real-world and artificial data sets, in which mass is a crucial parameter. In particular, we focus on the analysis of brown-out conditions, introduced by a helicopter in forward flight close to the ground. © 2013 The Author(s).

关键词： Flow visualization

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：