Compressed Dynamic Range Majority and Minority Data Structures
نویسندگان
چکیده
منابع مشابه
Dynamic Range Majority Data Structures
Given a set P of n coloured points on the real line, we study the problem of answering range α-majority (or “heavy hitter”) queries on P . More specifically, for a query range Q, we want to return each colour that is assigned to more than an α-fraction of the points contained in Q. We present a new data structure for answering range α-majority queries on a dynamic set of points, where α ∈ (0, 1...
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Karpinski and Nekrich (2008) introduced the problem of parameterized range majority, which asks to preprocess a string of length n such that, given the endpoints of a range, one can quickly find all the distinct elements whose relative frequencies in that range are more than a threshold τ . Subsequent authors have reduced their time and space bounds such that, when τ is given at preprocessing t...
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ژورنال
عنوان ژورنال: Algorithmica
سال: 2020
ISSN: 0178-4617,1432-0541
DOI: 10.1007/s00453-020-00687-6