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A Selectable Sloppy Heap
2019
Algorithms
We study the selection problem, namely that of computing the ith order statistic of n given elements. Here we offer a data structure called selectable sloppy heap that handles a dynamic version in which upon request (i) a new element is inserted or (ii) an element of a prescribed quantile group is deleted from the data structure. Each operation is executed in constant time—and is thus independent of n (the number of elements stored in the data structure)—provided that the number of quantile
doi:10.3390/a12030058
fatcat:fcbrgfxnmvhpna4eaba2fzoxvq