By performing this join in-network, REED can dramati- cally reduce the communications burden on the network topology, especially when there are relatively few satisfy- ing tuples, as is typically the case when identifying failures in condition-based monitoring or process compliance ap- plications. Reducing communication in this way is particu- larly important in many industrial scenarios when relatively high data rate sampling (., 100’s of Hertz) is required to perform the requisite monitoring [10]. Table 1 shows an example of the kinds of tables which we expect to transmit – in this case, the filtration predicates vary with time, and include conditions.
