In this paper, we propose (i) a compact tree structure for capturing uncertain data, (ii) a technique for using our tree structure to tighten upper bounds to expected support, and (iii) an algorithm for mining frequent patterns based on our tightened bounds.
The computational efficiency is increased by employing local search heuristics in order to tighten upper bounds and by valid inequalities to strengthen lower bounds in the subproblems.
These methods tighten the bounds of flow variables and reduce the number of linearized functions.
Arguably this richness allows us to tighten the bounds on the relationship between personality traits and NEET status (Dehejia and Wahba 2002).
To tighten these bounds, we additionally computed profits using the most promising ((lambda |hat{z}_{rt})) representation in a genetic algorithm on a computing cluster with a time limit of 30 min per instance.
The new measurements show that the earliest stars emerged 400 million years after the big bang and tighten the bounds on theories of how the universe grew in less than a trillionth of a second from marble-size to nearly its present size.
They could first tighten the bounds rather cautiously, and converge to their most preferred solution only at the end.
It is an interesting problem to either tighten the bound in (7) or present a construction for codes with (r,ℓ -cooperative locality which have higher rate than that of the partition code.
Experimental results show the benefits of our tightened upper bounds to expected supports in uncertain frequent pattern mining.
