Event Processing in Sensor Webs

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Event Processing in Sensor Webs

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by Thomas Everding , Johannes Echterhoff , Short Summary

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782	Models and issues in data stream systems - Babcock, Babu, et al. - 2002 (Show Context) Citation Context ...anch of event processing, Event Stream Processing (ESP), focuses on processing event objects that are ordered in time. These event objects are received in a data stream which can be of infinite size (=-=Babcock et al. 2002-=-). Therefore specialized techniques like data views that allow only a certain length of the event stream to be subject to queries (like time views and length views) have been developed. Because these ...
9	2007b. OpenGIS® Sensor Model Language Implementation Specification (Version 1.0.0). OGC Document Number - Botts, Robin (Show Context) Citation Context ...ecifications are of higher interest in this paper and will therefore briefly be introduced. The Sensor Model Language (SensorML) is used for encoding the characteristics and capabilities of a sensor (=-=Botts 2007-=-). Both physical as well as nonphysical sensors (i.e. processes) can be described, along with the algorithms executed by these processes internally. In addition, the Sensor Alert Service (SAS) has bee...
1	What's the Difference Between ESP and CEP? online at http://complexevents.com/?p=103 (accessed on: 15.12.2008 - Luckham - 2006 (Show Context) Citation Context ...ream to be subject to queries (like time views and length views) have been developed. Because these time-ordered data streams are members of the whole event cloud, ESP can be seen as a subset of CEP (=-=Luckham 2006-=-). While using CEP to derive higher level information relations between events are established. If for instance the higher level information is the average of two temperature measurements, these two m...