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WP5 Time and Streams Ralf Mller, TUHH November 7th, 2012 . How: - PowerPoint PPT Presentation

. . . . WP5 Time and Streams Ralf Mller, TUHH November 7th, 2012 . How: The Optique Project Who: TUHH, UOXF.BL, UoA plans by data and query log analysis (e.g., deviations from predicted behavior) .. 2 / 5 What: Handling of temporal


  1. . . . . WP5 Time and Streams Ralf Möller, TUHH November 7th, 2012

  2. . How: The Optique Project Who: TUHH, UOXF.BL, UoA plans by data and query log analysis (e.g., deviations from predicted behavior) .. 2 / 5 What: Handling of temporal aspects in Optique (continuous queries) . WP5 : Time and Streams . Ontology-based temporal queries . Ontology-based queries over streams of data . Extended multi-query rewriting . Rewriting rules for temporal operators . Common subexpression detection . Dataflow setup for subexpressions on streams . Event detection . Machine learning for determining best query

  3. . .. . (e.g., transaction vs. valid time) techniques subexpressions to optimize data flow of intermediate results The Optique Project 3 / 5 WP5 : Objectives . Semantics for a suffiiently expressive temporal query language . Sound and complete ontology-based query rewriting . for temporal query answering and . stream-based answering of multiple continuous queries . Selective and controlled materialization of events and common

  4. . T5.3: Development of OBDA rewriting techniques for The Optique Project (Lead UoA) temporal and continuous query answering T5.4: Data mining and query log analysis for improving (Lead TUHH) continuous queries (Lead TUHH) .. temporal queries T5.2: Development of OBDA rewriting techniques for (Lead UOXF.BL) queries T5.1: Semantics for rewritable temporal and stream-based . 4 / 5 WP5 : Tasks

  5. . D5.3: Data mining and query log analysis for scalable The Optique Project R(PU): M48 answering and their quantitative evaluation D5.4: Optimizations for temporal and continuous query R(PU): M36 temporal and continuous query answering R(PU): M24 .. Optimization techniques D5.2: OBDA with temporal and stream-oriented queries: R(PU): M18 answering in an OBDA context D5.1: A semantics for temporal and stream-based query . 5 / 5 WP5 : Deliverables

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