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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 proba- bility of at least 1 -O ( kd log n D + 1 n ) , where D is a known constant. Our empirical obser- vations on two streaming data sets show that this algorithm achieves high precision and re- call values. We further present a sliding win- dow adaptation of the proposed algorithm to provide a continuous selection of these ele- ments. In contrast to the existing work on predicting trends based on potential increase in popularity, our work focuses on a setting with provable guarantees.