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    Adaptive search over sorted sets

    Bonasera, B. and Ferrara, E. and Fiumara, G. and Pagano, F. and Provetti, Alessandro (2015) Adaptive search over sorted sets. Journal of Discrete Algorithms 30 , pp. 128-133. ISSN 1570-8667.

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    Abstract

    We revisit the classical algorithms for searching over sorted sets to introduce an algorithm refinement, called Adaptive search, that combines the good features of Interpolation search and those of Binary search. W.r.t. Interpolation search, only a constant number of extra comparisons is introduced. Yet, under diverse input data distributions our algorithm shows costs comparable to that of Interpolation search, i.e., O(log logn) while the worst-case cost is always in O(logn), as with Binary search. On benchmarks drawn from large datasets, both synthetic and real-life, Adaptive search scores better times and lesser memory accesses even than Santoro and Sidney’s Interpolation–Binary search.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Business, Economics & Informatics > Computer Science and Information Systems
    Depositing User: Alessandro Provetti
    Date Deposited: 12 Oct 2018 13:27
    Last Modified: 12 Oct 2018 13:27
    URI: http://eprints.bbk.ac.uk/id/eprint/24571

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