检索结果-内蒙古大学图书馆

Polyhedra generation from lattice points 6th

6th International Workshop on Discrete Geometry for Computer Imagery, DGCI 1996

作者： Kenmochi, Yukiko Imiya, Atsushi Ezquerra, Norberto F. Dept. of Information and Computer Sciences Chiba University 1-33 Yayoi-cho Inage-kuChiba263 Japan Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology 801 Atlantic Drive AtlantaGA30332-0280 United States

ISBN: (纸本)9783540620051

This paper focuses on a method for generating polyhedra from a set of lattice points, such as three-dimensional (3D) medical computerized tomography images. The method is based on combinatoriM topology [1] and algebraic properties of the 3D lattice space [2]. It is shown that the method can uniquely generate polyhedra from a subset of the lattice space independently of the choice of neighborhood. Furthermore, a practical algorithm is developed and experimental results using 3D medical imagery are presented. © Springer-Verlag Berlin Heidelberg 1996.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

Visualizing program executions on large data sets

Visualizing program executions on large data sets

引用

IEEE Symposium on Visual Languages

作者： J.T. Stasko J. Muthukumarasamy Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology Atlanta GA USA Silicon Graphics Inc. Mountain View CA USA

Understanding and interpreting large data sets is an important but challenging operation in many technical disciplines. Computer visualization has become a valuable tool to help portray characteristics of large data sets. In software visualization, illustrating the operation of very large programs or programs working on very large data sets has remained one of the key open problems. We introduce an approach that uses semantic zooming to depict large program executions. Our method utilizes abstract, clustered graphics to portray program operations on the entire data set. Then, by interacting with the presentation, a viewer can zoom in to examine details and individual values. At this "magnified" level, the presentation adjusts to reflect displays common in existing algorithm animation and program visualization systems.

关键词： Data visualization Computer graphics Software systems Concurrent computing Usability Silicon Educational institutions Clustering algorithms Animation Software debugging

来源：评论

学校读者我要写书评

暂无评论

Future research directions in human-computer interaction

引用

ACM computing Surveys 1996年第4ES期28卷

作者： John Stasko Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology Atlanta GA

No abstract available.

关键词：

来源：评论

学校读者我要写书评

暂无评论

TOWARDS AN INTELLIGENT PUBLISHING ENVIRONMENT

COMPUTER NETWORKS AND ISDN SYSTEMS

引用

COMPUTER NETWORKS AND ISDN SYSTEMS 1995年第6期27卷 729-737页

作者： PITKOW, JE JONES, RK Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology Atlanta GA 30332-0280 USA

This paper presents an environment for publishing information on the World-Wide Web (WWW). Previous work has pointed out that the explosive growth of the WWW is in part due to the ease with which information can be made available to Web users [23]. Yet this property can have negative impacts on the ability to find appropriate information as well as on the integrity of the information published. We present a prototype environment that facilitates the publishing of documents on the Web by automatically generating meta-information about the document, communicating this to a local scalable architecture, e.g. WHOIS + +, verifying the document's HTML compliance, maintaining referential integrity within the local database, and placing the document in a Web accessible area. Additionally, maintenance and versioning facilities are provided. This paper first discusses an idealized publishing environment, then describes our implementation, followed by a discussion of salient issues and future research areas.

关键词： INTERNET TOOLS ELECTRONIC PUBLISHING HYPERLINK DATABASES

来源：评论

学校读者我要写书评

暂无评论

VISUALIZING THE WORLD-WIDE-WEB WITH THE NAVIGATIONAL-VIEW-BUILDER

COMPUTER NETWORKS AND ISDN SYSTEMS

引用

COMPUTER NETWORKS AND ISDN SYSTEMS 1995年第6期27卷 1075-1087页

作者： MUKHERJEA, S FOLEY, JD Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology Atlanta GA 30332-0280 USA

Overview diagrams are one of the best tools for orientation and navigation in hypermedia systems. However, constructing effective overview diagrams is a challenging task. This paper describes the Navigational View Builder, a tool which allows the user to interactively create useful visualizations of the information space. It uses four strategies to form effective views. These are binding, clustering, filtering and hierarchization. These strategies use a combination of structural and content analysis of the underlying space for forming the visualizations. This paper discusses these strategies and shows how they can be applied for forming visualizations for the World-Wide Web.

关键词： INFORMATION visualization OVERVIEW DIAGRAMS BINDING CLUSTERING FILTERING HIERARCHIZATION

来源：评论

学校读者我要写书评

暂无评论

USING THE WEB AS A SURVEY TOOL - RESULTS FROM THE 2ND WWW USER SURVEY

COMPUTER NETWORKS AND ISDN SYSTEMS

引用

COMPUTER NETWORKS AND ISDN SYSTEMS 1995年第6期27卷 809-822页

作者： PITKOW, JE RECKER, MM Graphics Visualization & Usability Center College of Computing Georgia Institute of Technology Atlanta GA 30332-0280 USA College of Computing Georgia Institute of Technology Atlanta GA 30332-0280 USA

This paper presents the initial results from the second World-Wide Web User Survey, which was advertised and made available to the Web user population for 38 days during October and November 1994. The survey is built on our architecture and Web technologies, which together offer a number of technical and surveying advantages. In particular, our architecture supports the use of adaptive questions, and supports methods for tracking users' responses across different surveys, allowing more in-depth analyses of survey responses. The present survey was composed of three question categories: general demographic questions, browsing usage, and questions for Web information authors. In addition, we added an additional, experimental category addressing users' attitudes toward commercial use of the Web and the Internet. In just over one month, we received over 18 000 total responses to the combined surveys. To the best of our knowledge, the number of respondents and range of questions make this survey the most reliable and comprehensive characterization of WWW users to date. It will be interesting to see if and how the user trends shown in our results change as the Web gains in global access and popularity.

关键词： NEW APPLICATIONS SURVEYS DEMOGRAPHICS TOOLS

来源：评论

学校读者我要写书评

暂无评论

Using Graphic History in Browsing the World Wide Web 4

Using Graphic History in Browsing the World Wide Web

引用

4th International World Wide Web Conference: The Web Revolution, WWW 1995

作者： Ayers, Eric Z. Stasko, John T. Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology AtlantaGA30332 United States

ISBN: (纸本)1565921690

Users ofhypertext systems oftenfind themselves eagerlyfollowing hypertext links deeper and deeper into a hypertext weh, only to find themselves "lost" and unable find their way back to previously visited pages. As navigation aids to help users orient themselves in the Weh, browsers often provide a list ofthe documents a user has visited, a way to moveforward and backward along previously traversed links, and a quick way to return to a home document. Still, users often have trouble revisiting a page that was previously viewed in a session, especially after many invocations ofthe backtracking shortcuts. MosaicG is derivative work ofNCSA Mosaic version 2.5 which enhances the history-keepingfacility of the browser by providing a two-dimensional view of the documents a user has visited in a session. It is intended as an easy-to-use aid in navigating a collection ofhypertext documents. By presenting titles, URLs, and thumbnail images ofthe documents a user has visited in a session, the Graphic History View allows a user to easily recognize a previously visited document andprovides an easy wayfor the user to revisit that document and analyze the structure ofa set ofhypertext documents. © World Wide Web Conference: The Web Revolution, WWW 1995 - Conference Proceedings. All rights reserved.

关键词： World Wide Web

来源：评论

学校读者我要写书评

暂无评论

Using Graphic History in Browsing the World Wide Web 4

Using Graphic History in Browsing the World Wide Web

引用

Proceedings of the Fourth International Conference on World Wide Web

作者： Eric Z. Ayers John T. Stasko Graphics Visualization and Usability Center College of Computing Georgia Institute of Technology Atlanta GA

ISBN: (纸本)9781565921696

Users of hypertext systems often find themselves eagerly following hypertext links deeper and deeper into a hypertext web, only to find themselves "lost" and unable find their way back to previously visited pages. As navigation aids to help users orient themselves in the Web, browsers often provide a list of the documents a user has visited, a way to move forward and backward along previously traversed links, and a quick way to return to a home document. Still, users often have trouble revisiting a page that was previously viewed in a session, especially after many invocations of the backtracking *** is derivative work of NCSA Mosaic version 2.5 which enhances the history-keeping facility of the browser by providing a two-dimensional view of the documents a user has visited in a session. It is intended as an easy-to-use aid in navigating a collection of hypertext documents. By presenting titles, URLs, and thumbnail images of the documents a user has visited in a session, the Graphic History View allows a user to easily recognize a previously visited document and provides an easy way for the user to revisit that document and analyze the structure of a set of hypertext documents.

关键词： WWW

来源：评论

学校读者我要写书评

暂无评论

Using texture maps to correct for optical distortion in head-mounted displays

Using texture maps to correct for optical distortion in head...

引用

IEEE Annual International Symposium Virtual Reality

作者： B.A. Watson L.F. Hodges Graphics Visualization & Usability Center College of Computing Georgia Institute of Technology Atlanta GA USA

This paper describes a fast method of correcting for optical distortion in head-mounted displays (HMDs). Since the distorted display surface in an HMD is not rectilinear, the shape and location of the graphics window used with the display must be chosen carefully, and some corrections made to the predistortion model. A distortion correction might be performed with optics that reverse the distortion caused by HMD lenses, but such optics can be expensive and offer a correction for only one specific HMD. Integer incremental methods or a lookup table might be used to calculate the correction, but an I/O bottleneck makes this impractical in software. Instead, a texture map may be defined that approximates the required optical correction. Recent equipment advances allow undistorted images to be input into texture mapping hardware at interactive rates. Built in filtering handles predistortion aliasing artifacts.

关键词： Optical distortion Optical filters Displays Predistortion Shape Graphics Lenses Table lookup Hardware Filtering

来源：评论

学校读者我要写书评

暂无评论

The Krakatoa Chronicle An Interactive Personalized Newspaper on the Web 4

The Krakatoa Chronicle An Interactive Personalized Newspaper...

引用

4th International World Wide Web Conference: The Web Revolution, WWW 1995

作者： Kamba, Tomonari Bharat, Krishna Albers, Michael C. Graphics Visualization & Usability Center College of Computing Georgia Institute of Technology AtlantaGA30332-0280 United States School of Industrial & Systems Engineering Center for Human-Machine Systems Research Georgia Institute of Technology AtlantaGA30332-0205 United States

ISBN: (纸本)1565921690

This paper describes The Krakatoa Chronicle, a highly interactive, personalized newspaper on the World Wide Web (WWW). It is intendedforJava-saviy WWW browsers such as Hotjava, and is architecturally quite differentfrom conventional Web-based newspapers. Its high interactivity and powerful personalization are the result ofsending an interactive agent along with the text of the newspaper to operate within the user's Web-browser. The agent keeps a network connection open to the WWW server site tofetch resources dynamically, andfor updating the user’s personalprofile as it gamers relevance feedback. ventional ing, and the newspapers Users ability are provided to cannot, "peek." a These but variety also operations of transparently article not browsing only provide enhance options information such the reading as scrolling, to our experience agent maximizing, about in ways the user resiz con ’slocus ofinterest. Ours is thefirst Web newspapier to attempt a realistic rendering ofa newspaper, with a multicolumn format and embedded custom widgets for easy browsing. We provide dynamic layout control mechanisms that let the user specify how personal and community interests should be interpreted by the agent in designing the layout. © World Wide Web Conference: The Web Revolution, WWW 1995 - Conference Proceedings. All rights reserved.

关键词： Newsprint

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：