Auflistung nach Schlagwort "Data Visualization"
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- KonferenzbeitragAn Efficient Method for Exploratory Data Visualization of Big Spatial Data on Commodity Hardware(INFORMATIK 2019: 50 Jahre Gesellschaft für Informatik – Informatik für Gesellschaft, 2019) Beilschmidt, Christian; Mattig, Michael; Fober, Thomas; Seeger, BernhardThe exploratory and interactive visualization of big spatial data is becoming increasingly important in business, science, and many other application areas. In this paper, we discuss the Circle Merging Quadtree, an efficient method for aggregating and visualizing big spatial point data on commodity hardware.
- KonferenzbeitragRecommenders benchmark framework(11th International Conference on Innovative Internet Community Systems (I2CS 2011), 2011) Dayan, Aviram; Katz, Guy; Lüke, Karl-Heinz; Rokach, Lior; Shapira, Bracha; Schwaiger, Roland; Aydin, Aykan; Fishel, Radmila; Biadsy, NassemRecommender Systems are software tools and techniques providing suggestions for items to be of use to a user. Recommender systems have proven to be a valuable means for online users to cope with the virtual information overload and have become one of the most powerful and popular tools in electronic commerce. Correspondingly, various techniques for recommendation generation have been proposed during the last decade. In this paper we present a new benchmark framework. It allows researchers or practitioners to quickly try out and compare different recommendation methods on new data sets. Extending the framework is easy thanks to a simple and well-defined Application Programming Interface (API). It contains a plug-in mechanism allowing others to develop their own algorithms and incorporate them in the framework. An interactive graphical user interface is provided for setting new benchmarks, integrate new plug-ins with the framework, setting up configurations and exploring benchmark results.
- ZeitschriftenartikelVisualization and Interaction with Multiple Devices. A Case Study on Reachability of Remote Areas for Emergency Management(i-com: Vol. 16, No. 3, 2017) Tost, Jordi; Heidmann, FrankWhen a hazard event strikes, the reachability of affected areas is a significant factor that can determine if the situation becomes a disaster. Decision makers have to react quickly while under stress to tasks that depend on the road network, such as management of relief operations, planning of evacuation routes, or food and first aid distribution. In this paper we present an approach for exploring and validating reachability of remote areas through visualization with an interactive tabletop and tablets. We propose a simple way to combine and visualize data from scientists and communities to provide insights into area reachability, as well as the likely impacts of future hazard events on access routes. Moreover, our interface introduces an approach to assess alternative accessibility options to isolated settlements by helicopter or off-road routes that builds on satellite data and interactive collaborative mapping. This set of visualization and interaction techniques facilitates the formation of risk scenarios for better planning, preparedness and response activities. We developed our research with a case study of landslide threat for an area in Colombia.