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Min-$d$-Occur: Ensuring Future Occurrences in Streaming Sets
Proceedings of the 30th Conference on Uncertainty in Artificial Intelligence, PMLR R12:284-293, 2014.
Abstract
Given a set of n elements and a corresponding stream of its subsets, we consider the problem of selecting k elements that should appear in at least $d$ such subsets arriving in the “near” future with high probability. For this min-$d$-occur problem, we present an algorithm that provides a solution with the success probability of at least $1 -O ( kd \log n D + 1 n )$ , where $D$ is a known constant. Our empirical observations on two streaming data sets show that this algorithm achieves high precision and recall values. We further present a sliding window adaptation of the proposed algorithm to provide a continuous selection of these elements. In contrast to the existing work on predicting trends based on potential increase in popularity, our work focuses on a setting with provable guarantees.