For small join tables, REED always chooses to push
them into the network if their selectivity is smaller than
one. For intermediate tables, the REED query optimizer
makes a decision as to whether to push the join into the
network based on the estimated selectivity of the predicate
(which may be learned from past performance or gathered
statistics, or estimated using basic query optimization tech-
niques [28]) and the average depth of sensor nodes in the
network. It uses a novel algorithm to store several copies
of the join table at different groups of neighboring nodes in
the...
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Stream Prediction Using A Generative Model Based On Frequent Episodes In Event Sequences
Stream Prediction Using A Generative Model Based On Frequent Episodes In Event Sequences
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