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Using Semantic Web to Optimize the Discovery, Access, and Utilization of Big Geospatial Data

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

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Using Semantic Web to Optimize the Discovery, Access, and Utilization of Big Geospatial Data

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  1. 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, 22030-4444

  2. 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

  3. 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

  4. Capture Onotology Semantic-aided Data Discovery • Rank Results • Guided Search Kai Liu et al., 2013, IJGIA

  5. Data Discovery Demo Zhipeng Gui, Kai Liu et al., 2012, IJGIS http://geosearch.cloudapp.net/ Liu et al., 2012

  6. Results Analyses Based on Ontology Zhipeng Gui et al., 2013, AGIS http://geosearch.cloudapp.net/ Demo using Pivot viewer:

  7. Planning: Polar Portal C. Yang, W. Li, K. Liu, Z. Li, Z. Gui, C. Xu

  8. Planning: Data Center DataDiscvoery

  9. 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., 2011. Using Metadata, Data/Service Quality and Knowledge to Facilitate Better Data Discovery, Access, and Utilization for Supporting EarthCube, http://semanticommunity.info/@api/deki/files/13812/=024_Yang.pdf.

  10. Semantic Web Related Research Needs • Better capturing the vocabularies and the linkages • Domain/community specific • Weights assignments • Dynamic • Better tools for • Knowledge capturing • Knowledge reasoning • Interactive GUI • More study in social sciences is urgently needed to enable efficient collaboration among team members, communities, and domains • 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

  11. Sponsors and Collaborators

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