Efficient Semantic Event Processing
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For user interfaces, a non-efficient implementation can be a show stopper – applications which are perceivably slow will almost always lack acceptance by the end users. On the other hand, using ontologies and reasoning can create a massive overhead which is difficult to handle and conflicts with scalability. After a short review of the state of the art in semantic event processing in Sect. 8.2, this chapter discusses different implementation alternatives and evaluates their effect on performance in Sect. 8.3. Section 8.4 sheds more light on the generalized problem of reasoning on data from running applications. Section 8.5 shows how semantic event processing was implemented in an efficient way in the SoKNOS system.
KeywordsInstance Data Event Processing Query Time Integration Rule Single Rule
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