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Informationsfusion und -Integrität: Grid-Erweiterungen zum Datenmanagement

Informationsfusion und -Integrität: Grid-Erweiterungen zum Datenmanagement. Project Leader: Prof. Dr.-Ing. Erhard Rahm Institut für Informatik, Universität Leipzig. Project Partners Infrastructure: TU Dresden Universität Leipzig TU München Application: AstroGrid-D MediGrid

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Informationsfusion und -Integrität: Grid-Erweiterungen zum Datenmanagement

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  1. Informationsfusion und -Integrität:Grid-Erweiterungen zum Datenmanagement Project Leader: Prof. Dr.-Ing. Erhard Rahm Institut für Informatik, Universität Leipzig • Project Partners • Infrastructure: • TU Dresden • Universität Leipzig • TU München • Application: • AstroGrid-D • MediGrid • TextGrid • Forschungszentrum Rossendorf AstroGrid-D Meeting Heidelberg, 2006-07-25

  2. Main Goals: Services for • Data Fusion • semantical correct Combination of Data Sources • Support of Analysis over distributed Data • Ontology-based Mapping of Data Sources • Data Integrity • Data Lineage • based on Grid Security Infrastructure (GSI) • Dynamic Data Distribution (see following slides) • Optimization of data intensive Queries • effective and efficient Usage of decentral Main Memory Ressources Augmenting Data Management in DGI AstroGrid-D Meeting Heidelberg, 2006-07-25

  3. HiSbase: Main Memory P2P Database System AstroGrid-D Meeting Heidelberg, 2006-07-25

  4. HiSbase – The Challenge • Histogram-based peer-to-peer main memory database for locality-aware data processing • Example: distributed archives (astrophysics) • Correlation of different catalogs • Skewed data distribution • Region-based queries • Right ascension (longitude) • Declination (latitude) AstroGrid-D Meeting Heidelberg, 2006-07-25

  5. AstroGrid-D Meeting Heidelberg, 2006-07-25

  6. “Distribute by Region – not by Archive!” • Highly distributed information management • Distributed Hashtable peer-to-peer architecture • High performance query processing • Main memory database • Semantic clustering, spatial locality • Equi-depth histograms AstroGrid-D Meeting Heidelberg, 2006-07-25

  7. AstroGrid-D Meeting Heidelberg, 2006-07-25

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