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The widely used geospatial web services technology has provided a new means for geospatial data interoperability. Web Map Service (WMS) is a standardized geospatial web service from the Open Geospatial Consortium (OGC). WMSs can be used for requesting and producing maps on the Internet, and have been widely adopted in the Geographic Information System (GIS) community. These WMSs make remote sensing...
Developing a large sensor-based observation system faces two serious challenges: 1) incompatible sensor technologies from different manufacturers; and 2) complexity of the data streaming process. Sensor Abstraction Layer (SAL) is a middle-ware integration platform which enables a single interface to view and control heterogeneous sensors regardless of the technologies involved. Although SAL addresses...
In the Meridian Project, two space weather physics models, L1-magnetosphere-ionosphere causal chain(L1 model), and numerical magnetosphere database service, are provided as e-Science application services through the space weather computation grid environment, which provides a web-based portal for space weather studies users. We call the computation grid environment as a computing gateway. The computing...
To study the SVG technology and J2EE technology, and take the power industry requirements as a starting point, this paper designed a B/S-based power graphics development platform. It can not only develop the standard SVG-based power graphics, but also can associate the graphics with data models closely. So the data information can be shown by the intuitive of the graphics, and it is of great significance...
Social network analysis (SNA) has attracted a lot of attention over the past years. Existing tools for SNA do not allow a user-centric analysis of the social neighborhood, i.e., the subgraph of the user's friends and friends of a friend. In this paper, we introduce SONAR, an open source Web application for user-centric SNA. Its extensible architecture and flexible data model allows developers to embed...
Digital ocean prototype system is a key part of the China digital ocean information basic framework and the basic integration platform for China ocean information management and application. The purpose of marine environment data warehouse is to provide comprehensive and multiple marine information services. This paper proposed distributed marine environment data warehouse construction, and gives...
In this paper we present Real time biomedical data Streaming platform (RIMES), a data-intensive virtual environment, under joint development by Computer Network Information Center and University of California, San Diego. RIMES extends scientists' desktops to biomedical grid computation resources and mass storage systems, by means of streaming biomedical data through internet-based Data Turbine cloud...
In view of the insufficiency of current remote simulation resource sharing and visualization technology, based on B/S mode and distributed interaction simulation's characteristics, the new design and method which aim at the remote simulation are provided, making the best of the J2EE architecture. Particularly RMI and the JNDI technology have solved the problems of the remote simulation resources'...
Skyline is perfect network three-dimensional visualization software, especially in the mass data transfer and three-dimensional performance. However, Skyline has limitations in spatial analysis. ArcGIS is also excellent GIS software, especially in the data processing and spatial analysis. This paper integrates Skyline and ArcGIS and makes full use of the advantages to construct Web three-dimensional...
Analyzing the characteristics of existing three-dimensional visualization software technology, a method of modeling three dimensional spatial data and publishing on Web is discussed in details. A Web-3D technology model is presented based on Java 3D and GWT-ext, which provide technical supports for spatial information management and remote engineering control.
Determination of appropriate response to information system attack is jointly determined by confidence of classification, nature (type) of attack, and confidence in effectiveness of response. In this paper we present a technique to rapidly assess similarity of observed behavior to attack or normal models: displaying the similarity of observed data to learned minimum description length models for normal...
Online Analytical Processing (OLAP) was widely used to visualize complex data for efficient, interactive and meaningful analysis. Its power comes in visualizing huge operational data for interactive analysis. On the other hand, data mining techniques (DM) are strong at detecting patterns and mining knowledge from historical data. OLAP and DM is believed to be able to complement each other to analyze...
Present an approach to adaptive streaming of complex three-dimensional GIS data over public networks. In the client-server based architecture, the CityServer3D, both geometrical and texture data describing highly detailed three-dimensional city models is streamed to the client. In order to achieve significant reduction of the huge amount of data, take advantage of LOD concepts and a predictive approach...
Geospatial data are usually featured with three-dimensions in space and fast evolvement with time. The delivery of a large volume of geospatial data requires a well built network environment. This fact also challenges the online visualization. In order to accelerate data transmission and rendering, progressive methods have been applied in this paper. A k-d tree structure is incorporated to construct...
A repository containing perceived quality data for polygonal meshes, obtained through observer studies, is presented. It includes information regarding the experimental methodology, protocol and models used, with the purpose of allowing researchers to use it, e.g., for a faster preliminary assessment of their perceived quality metrics without the overhead of designing and performing an observer study.
The Northwest Association of Networked Ocean Observing Systems (NANOOS) is one of eleven Regional Associations of the US Integrated Ocean Observing System (IOOS). NANOOS serves the Pacific Northwest from the US/Canada border to Cape Mendocino on the northern California coast. Its mission is to coordinate and support the development, implementation, and operations of a regional coastal ocean observing...
We present a new paradigm for publishing scientific workflows to the Web. Publishing in this system involves not only creating a Web space for running the workflow on demand, but also the ability for the publisher to convey expertise about its use by providing ways to focus attention on problem-relevant parameters, inputs and outputs. As part of the publishing step we include the ability to configure...
Data analysis tasks at an Ocean Observatory require integrative and and domain-specialized use of database, workflow, visualization systems. We describe a platform to support these tasks developed as part of the cyberinfrastructure at the NSF Science and Technology Center for Coastal Margin Observation and Prediction integrating a provenance-aware workflow system, 3D visualization, and a remote query...
In this paper, we propose a new distributed linkage method for the great amount of event data. This method is used for event-data processing such as system behavior visualization, which can diagnose and provide information about complex distributed IT system behavior from communication messages. In this method, we use two techniques: probe and data distribution by ??source??. The probe links event...
In this work we present an scientific application that has been given a Hadoop MapReduce implementation. We also discuss other scientific fields of supercomputing that could benefit from a MapReduce implementation. We recognize in this work that Hadoop has potential benefit for more applications than simply data mining, but that it is not a panacea for all data intensive applications. We provide an...
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