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The range 1 query (R1Q) problem

  • Stony Brook University
  • Fudan University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We define the range 1 query (R1Q) problem as follows. Given a d-dimensional (d≥1) input bit matrix A, preprocess A so that for any given region R of A, one can efficiently answer queries asking if R contains a 1 or not. We consider both orthogonal and non-orthogonal shapes for R including rectangles, axis-parallel right-triangles, certain types of polygons, and spheres. We provide space-efficient deterministic and randomized algorithms with constant query times (in constant dimensions) for solving the problem in the word RAM model. The space usage in bits is sublinear, linear, or near linear in the size of A, depending on the algorithm.

Original languageEnglish
Title of host publicationComputing and Combinatorics - 20th International Conference, COCOON 2014, Proceedings
PublisherSpringer Verlag
Pages116-128
Number of pages13
ISBN (Print)9783319087825
DOIs
StatePublished - 2014
Event20th International Computing and Combinatorics Conference, COCOON 2014 - Atlanta, GA, United States
Duration: Aug 4 2014Aug 6 2014

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume8591 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference20th International Computing and Combinatorics Conference, COCOON 2014
Country/TerritoryUnited States
CityAtlanta, GA
Period08/4/1408/6/14

Keywords

  • circular
  • non-orthogonal
  • orthogonal
  • polygonal
  • R1Q
  • randomized
  • range emptiness
  • range query
  • rectangular
  • spherical
  • triangular

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