کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6875392 1441947 2018 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The range 1 query (R1Q) problem
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
The range 1 query (R1Q) problem
چکیده انگلیسی
We define the range 1 query (R1Q) problem as follows. Given a d-dimensional (d≥1) input bit matrix A (consisting of 0's and 1's), preprocess A so that for any given region R of A, 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, axis-parallel right simplices 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theoretical Computer Science - Volume 743, 26 September 2018, Pages 130-147
نویسندگان
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