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  • 标题:Finding monotone patterns in sublinear time
  • 本地全文:下载
  • 作者:Omri Ben-Eliezer ; Clement Canonne ; Shoham Letzter
  • 期刊名称:Electronic Colloquium on Computational Complexity
  • 印刷版ISSN:1433-8092
  • 出版年度:2019
  • 卷号:2019
  • 页码:1-49
  • 出版社:Universität Trier, Lehrstuhl für Theoretische Computer-Forschung
  • 摘要:

    We study the problem of finding monotone subsequences in an array from the viewpoint of sublinear algorithms. For fixed k N and 0"> 0 , we show that the non-adaptive query complexity of finding a length- k monotone subsequence of f : [ n ] R , assuming that f is -far from free of such subsequences, is (( log n ) log 2 k ) . Prior to our work, the best algorithm for this problem, due to Newman, Rabinovich, Rajendraprasad, and Sohler (2017), made ( log n ) O ( k 2 ) non-adaptive queries; and the only lower bound known, of ( log n ) queries for the case k = 2 , followed from that on testing monotonicity due to Erg\"un, Kannan, Kumar, Rubinfeld, and Viswanathan (2000) and Fischer (2004).

  • 关键词:Forbidden Patterns ; Monotonicity testing ; non;adaptive ; one;sided testing
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