Virtual Semantic Web Workshop, May 7, 2013 1 Using Semantic Web to Optimize the Discovery, Access, and Utilization of Big Geospatial Data Chaowei Phil.

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Presentation transcript:

Virtual Semantic Web Workshop, May 7, Using Semantic Web to Optimize the Discovery, Access, and Utilization of Big Geospatial Data Chaowei Phil Yang, Director NSF I/UCRC for Spatiotemporal Thinking, Computing, and Applications Kai Liu, Jizhe Xia, Zhipeng Gui, Zhenlong Li, and Chen Xu George Mason University, Fairfax, VA, Chaowei Phil Yang, Director NSF I/UCRC for Spatiotemporal Thinking, Computing, and Applications Kai Liu, Jizhe Xia, Zhipeng Gui, Zhenlong Li, and Chen Xu George Mason University, Fairfax, VA,

Virtual Semantic Web Workshop, May 7, 2013 Big Data Challenge? Petabytes of data collected daily Archive and management of Big Data Processing Big Data Discovery and access Big Data Understanding Big Data

Virtual Semantic Web Workshop, May 7, 2013 Semantic Web for Big Data? Petabytes of data collected daily Archive and management of Big Data Processing Big Data Discovery and access Big Data Understanding Big Data

Virtual Semantic Web Workshop, May 7, 2013 Capture Onotology Capture Onotology Rank Results Rank Results Guided Search Guided Search Semantic-aided Data Discovery Kai Liu et al., 2013, IJGIA

Virtual Semantic Web Workshop, May 7, 2013 Data Discovery Demo Liu et al., 2012 Zhipeng Gui, Kai Liu et al., 2012, IJGIS

Virtual Semantic Web Workshop, May 7, 2013 Results Analyses Based on Ontology Demo using Pivot viewer: Zhipeng Gui et al., 2013, AGIS

Virtual Semantic Web Workshop, May 7, 2013 Planning: Polar Portal C. Yang, W. Li, K. Liu, Z. Li, Z. Gui, C. Xu

Virtual Semantic Web Workshop, May 7, 2013 Planning: Data Center DataDiscvoery

Virtual Semantic Web Workshop, May 7, 2013 A Framework for Managing Big Geospatial Data Yang C., Bambacus M., Benedict K., Nebert D., Mochuney D., Hazlett S., Houser P., Raskin R., Xu Y., Fay D., Rezgui A., Huang Q., and Xu C., Using Metadata, Data/Service Quality and Knowledge to Facilitate Better Data Discovery, Access, and Utilization for Supporting EarthCube,

Virtual Semantic Web Workshop, May 7, 2013 Semantic Web Related Research Needs 1)Better capturing the vocabularies and the linkages Domain/community specific Weights assignments Dynamic 2)Better tools for Knowledge capturing Knowledge reasoning Interactive GUI 3)More study in social sciences is urgently needed to enable efficient collaboration among team members, communities, and domains 4)Thinking and computing in a spatiotemporal fashion will provide an enabling capability for the new geoscience frontier by contributing essential computing architectures, algorithms, and methodologies

Virtual Semantic Web Workshop, May 7, 2013 Sponsors and Collaborators