- Developed Color Graphics System 1972-1976 - the first ink jet plotter in the World in collaboration with Prof Hertz f... moreDeveloped Color Graphics System 1972-1976 - the first ink jet plotter in the World in collaboration with Prof Hertz for raster based visualisation software http://ncva.itn.liu.se/about?l=en. Established UNIRAS 1982-1992 with offices in Copenhagen, London, Paris, Milano, Dallas and Boston. SIGGRAPH 93, elected "pioneer of computer graphics". Consulted with the EC Commission as a technical expert in visualization. Published more than 200 technical papers and several books in visual computing and visualization application areas and a frequently invited keynote speaker at international Conferences http://ncva.itn.liu.se/publications?l=en. 2004 - Professor at Linkoping University. Created NCVA (National Centre for Visual Analytics) in 2006 (http://ncva.itn.liu.se/?l=en) to share interactive geovisual analytics with focus on large statistical data "Statistical eXplorer". Collaboration with OECD http://www.oecd.org/gov/regional-policy/regionalstatisticsandindicators.htm and Eurostat.edit
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Page 1. Visual Storytelling Knowledge and Understanding in Education Linnéa Stenliden ISV, Linköping University, Norrköping, Sweden and Mikael Jern NCVA, MIT, Linköping University, Norrköping, Sweden ABSTRACT ...
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For more information see our research web site: http://ncva.itn.liu.se
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DESCRIPTION The voluminous nature of social scientific, spatial-temporal statistical databases calls for high interactive performance and creative integrated information based on InfoVis and geo-visualization tools. A solution to this... more
DESCRIPTION The voluminous nature of social scientific, spatial-temporal statistical databases calls for high interactive performance and creative integrated information based on InfoVis and geo-visualization tools. A solution to this challenge can be found in Visual Analytics, a science of analytical reasoning facilitated by interactive visual interfaces and innovative visualization. This slide presentation give an introduction lecture to “Geovisual Analytics”, based on the principles behind VA but also include many famous InfoVis methods. The objective is to define new suitable approaches and tools for exploring time variant and multivariate attributes simultaneous including a spatial dimension. Parallel coordinates are introduced that integrate with time series and trend graph and serves as a visual control panel for links demonstrators. Multivariate attribute dynamic queries can express simultaneously queries involving time varying spatial data. VA encourages the need to build a...
Official statistics such as demographics, environment, health, social-economy and education from national and sub-national sources are a rich and important source of information for many important aspects of life and should be considered... more
Official statistics such as demographics, environment, health, social-economy and education from national and sub-national sources are a rich and important source of information for many important aspects of life and should be considered to be more used and acknowledged in education. Educators and their students would be able to get informed and at the same time participate in increasing the knowledge on how life is lived and can be improved. A lot of this statistics information can be reached on the Internet. This is producing what is often called information overload and causing people to be increasingly faced with the problems of filtering and interpreting enormous quantities of information. We know that official statistics are used as a more or less important background for decisions especially in public planning and policy making. However, in education, official statistics are much less recognized and used than they ought to be and among the informed public they are even less u...
During the last decade, virtual reality (VR) has emerged from the realm of science fiction fantasies to be experienced by thousands of people. The development of hardware and software support for VR also has led to ahuge expansion in the... more
During the last decade, virtual reality (VR) has emerged from the realm of science fiction fantasies to be experienced by thousands of people. The development of hardware and software support for VR also has led to ahuge expansion in the number of applications supported by the medium. The collection of state-of-the-art developments presented in this volume explores the principal application areas of VR systems, and addresses some of the main issues for potential users. Application areas covered include medicine and surgery, engineering and simulation, systems development and modeling, televirtuality, art and education. Human factors issues in VR are also discussed. Explores the principal application areas of VR systems and addresses the central issues Discusses human factors in VR Covers VR applications in medicine, engineering, system modeling, art, and education Contributors are renowned experts in the VR field
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ABSTRACT Official statistics such as demographics, environment, health, social economy and education from regional territories are a rich and important source of information for many important aspects of life. Web-enabled geovisual... more
ABSTRACT Official statistics such as demographics, environment, health, social economy and education from regional territories are a rich and important source of information for many important aspects of life. Web-enabled geovisual analytics is a technique that can help illustrating comprehensive statistical data which for the eye are hard perceive or interpret. In this paper, we introduce “storytelling” means for the author to 1) select spatio-temporal and multivariate statistical data, 2) explore and discern trends and patterns, 3) orchestrate and describe metadata, 4) collaborate with colleagues to confirm and 5) finally publish essential gained insight and knowledge embedded as dynamic visualization “Vislet” in a blog or web page. The author can guide the reader in the directions of both context and discovery while at the same time follow the analyst’s way of logical reasoning. We are moving away from a clear distinction between authors and readers affecting the process through which knowledge is created and the traditional models which support editorial work. Value no longer relies solely on the content but also on the ability to access this information. See also http://ncva.itn.liu.se for more information related to this project.
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In this paper, we extend our generic ldquoGeoAnalyticsrdquo visualization (GAV) component toolkit, based on the principles behind Visual Analytics (VA), to also support time-oriented, geographically referenced and multivariate attribute... more
In this paper, we extend our generic ldquoGeoAnalyticsrdquo visualization (GAV) component toolkit, based on the principles behind Visual Analytics (VA), to also support time-oriented, geographically referenced and multivariate attribute volumetric data. GAV includes components that support a mixture of technologies from the three data visualization fields: information visualization (InfoVis), geovisualization (GeoVis) and scientific visualization (SciVis). Our research concentrates on visual
Research Interests: Scientific Visualization, Information Visualization, Data Analysis, Visual Analytics, User Interface, and 11 moreGeovisualization, Data Visualization, Data Visualisation, Assembly, User interfaces, Data Manipulation, Graphical User Interfaces, Information Analysis, Directional Data, Geographic Information System, and Geographic Information Systems
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Research Interests: Information Retrieval, Data Mining, Information Visualization, User Interface, Virtual Worlds, and 16 moreData Warehouse, Data Visualization, Data Visualisation, Virtual Reality, Navigation, Graphics, HTML, Interaction Techniques, Drilling, World Wide Web, Graphical User Interfaces, Hyperlinks, Geospatial Data, Glyphs, Internet, and Region of Interest
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A thin client, by definition, have minimal software requirements necessary to function as a user interface front-end for a Web enabled application and raises the issue of client vs. server data visualization rendering. Real-time visual... more
A thin client, by definition, have minimal software requirements necessary to function as a user interface front-end for a Web enabled application and raises the issue of client vs. server data visualization rendering. Real-time visual data manipulation doesn't translate well into a "thin" client. While the VRML file format allows distribution of visualization scenes to the Web, the user has no access to the actual underlying data source. The "mapping" of numerical data into geometry format (VRML) takes place at the server side.Local data manipulation, information drill-down technique, context sensitive menus, object picking and other interactive user interface functions that traditionally have been available on the client are now controlled by the visualization server. In the "thin" client model, nearly all functionality is delivered from the server side of the visualization engine while the client perform very simple display and querying functions.Web components and Plug-ins are now being used to overcome some of these limitations. Java allows the creation of "applets" and "JavaBeans" and we have Windows/COM components. These components together with data reduction methods can significantly increase the data interaction between the client application and user, and allow tasks to be executed on the client. Highly interactive user interface tasks are delivered that provide point-and-click navigation through multidimensional data structures. Visual data interfaces such as information drilling, moving a cutting plane through a volume data set etc can be supported.The implication of using a static VRML environment with reduced geometry is compared to sending compressed data to the client and perform interactive client data visualization on a desktop.
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... Any of the following techniques are applicable: Plug-ins, Helper Applications, Java applets,ActiveX control or JavaBeans. ... The first step in the process of creating an ActiveX control with AVSiExpress is the design of the... more
... Any of the following techniques are applicable: Plug-ins, Helper Applications, Java applets,ActiveX control or JavaBeans. ... The first step in the process of creating an ActiveX control with AVSiExpress is the design of the actual visualization control (data viewer). ...
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Cellular radio networks are continually growing in both node count and complexity. It therefore becomes more difficult to manage the networks and necessary to use time and cost effective automatic algorithms to organize the network's... more
Cellular radio networks are continually growing in both node count and complexity. It therefore becomes more difficult to manage the networks and necessary to use time and cost effective automatic algorithms to organize the network's neighbor cell relations. There have been a number of attempts to develop such automatic algorithms. Network operators, however, may not trust them because they need to have an understanding of their behavior and of their reliability and performance, which is not easily perceived. This paper presents a novel web-enabled geovisual analytics approach to exploration and understanding of self-organizing network data related to cells and neighbor cell relations. A demonstrator and case study are presented in this paper, developed in close collaboration with the Swedish telecom company Ericsson and based on large multivariate, time-varying and geospatial data provided by the company. It allows the operators to follow, interact with and analyze the evolution of a self-organizing network and enhance their understanding of how an automatic algorithm configures locally-unique physical cell identities and organizes neighbor cell relations of the network. The geovisual analytics tool is tested with a self-organizing network that is operated by the Automatic Neighbor Relations (ANR) algorithm. The demonstrator has been tested with positive results by a group of domain experts from Ericsson and will be tested in production.
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Geovisual analytics focuses on finding location-related patterns and relationship. Many approaches exist but generally do not scale well with large spatial datasets. We propose three enhancements that facilitate scalable geovisual... more
Geovisual analytics focuses on finding location-related patterns and relationship. Many approaches exist but generally do not scale well with large spatial datasets. We propose three enhancements that facilitate scalable geovisual analytics of voluminous geospatial data based on geographic mapping coordinated and linked with parallel coordinates (PC): 1) texture-based geographic mapping that exploits GPU-based rendering performance applied to overview + detail views, 2) statistical methods embedded in PC, 3) aggregated dynamic grid maps that integrate with PC. In this context, we have extended our previous introduced 'GeoAnalytics' Visualization (GAV) framework and class library with a novel implementation of the standard PC using an atomic layered component architecture that allows new ideas to be implemented and assessed without having to rewrite a complete functional PC component. We demonstrate our proposed enhancements applied to a large geospatial dataset containing more than 10,000 Swedish zip (postal) code regions described by more than three million (X,Y) boundary coordinates and includes many associated demographics and statistical attributes.