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Event Detection and Notification in the World-Wide Sensor Web Magdalena Balazinska with Evan Welbourne, Garret Cole, Nodira Khoussainova, Julie Letchner,

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Presentation on theme: "Event Detection and Notification in the World-Wide Sensor Web Magdalena Balazinska with Evan Welbourne, Garret Cole, Nodira Khoussainova, Julie Letchner,"— Presentation transcript:

1 Event Detection and Notification in the World-Wide Sensor Web Magdalena Balazinska with Evan Welbourne, Garret Cole, Nodira Khoussainova, Julie Letchner, Christopher Ré, Yang Li, Gaetano Borriello, and Dan Suciu Computer Science & Engineering University of Washington http://rfid.cs.washington.edu/

2 RFID Ecosystem Location tracking tagtimelocation ……… Bob10:02B AB C Deployment Bob10:03C Bob10:01A Reader Antenna Tag:

3 High-Level RFID Events

4 Our system: Cascadia Applications Standalone or Transformer

5 Event Specification: Scenic

6 Event Detection: PEEX PeexL is translated into SQL SQL queries execute repeatedly Uses small, shifting time window PEEX At(…) SQL Event QueriesResults eventpersonroomtimeprob CoffeeBob4815.63 Break CoffeeBob48114.86 Break CoffeeBob48116.87 Break COFFEE-BREAK(Bob,481,5,.64) Event Stream to Applications COFFEE-BREAK(Bob,481,14,.86) COFFEE-BREAK(Bob,481,16,.87) …………… And so on…

7 Event Visualization: SensorMap

8

9 More Information Cascadia: A System for Specifying, Detecting, and Managing RFID Events. E. Welbourne, N. Khoussainova, J. Letchner, Y. Li, M. Balazinska, G. Borriello, and D. Suciu. Mobisys 2008. Specification, Detection, and Notification of RFID Events with Cascadia (demo). E. Welbourne, G. Cole, N. Khoussainova, J. Letchner, Y. Li, M. Balazinska, G. Borriello, and D. Suciu. Mobisys 2008. Event Queries on Correlated Probabilistic Streams. C. Re, J. Letchner, M. Balazinska, and D. Suciu. SIGMOD 2008. A Demonstration of Cascadia through a Digital Diary Application (demo). N. Khoussainova, E. Welbourne, M. Balazinska, G. Borriello, G. Cole, J. Letcnher, Y. Li, C. Re, D. Suciu, and Jordan Walke. SIGMOD 2008. PEEX: Extracting Probabilistic Events from RFID Data. N. Khoussainova, M. Balazinska, and D. Suciu. ICDE 2008. http://rfid.cs.washington.edu/publications.html

10 Event Detection and Notification in the World-Wide Sensor Web Magdalena Balazinska with Evan Welbourne, Garret Cole, Nodira Khoussainova, Julie Letchner, Christopher Ré, Yang Li, Gaetano Borriello, and Dan Suciu Computer Science & Engineering University of Washington http://rfid.cs.washington.edu/

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