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EUROSSC
2007
Springer

Recognition of User Activity Sequences Using Distributed Event Detection

9 years 10 months ago
Recognition of User Activity Sequences Using Distributed Event Detection
We describe and evaluate a distributed architecture for the online recognition of user activity sequences. In a lower layer, simple heterogeneous atomic activities were recognised on multiple on-body and environmental sensor-detector nodes. The atomic activities were grouped in detection events, depending on the detector location. In a second layer, the recognition of composite activities was performed by an integrator. The approach minimises network communication by local activity aggregation at the detector nodes and transforms the temporal activity sequence into a spatial representation for simplified composite recognition. Metrics for a general description of the architecture are presented. We evaluated the architecture in a worker assembly scenario using 12 sensor-detector nodes. An overall recall and precision of 77% and 79% was achieved for 11 different composite activities. The architecture can be scaled in the number of sensor-detectors, activity events and sequences while b...
Oliver Amft, Clemens Lombriser, Thomas Stiefmeier,
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Where EUROSSC
Authors Oliver Amft, Clemens Lombriser, Thomas Stiefmeier, Gerhard Tröster
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