Title
Searching monotone multi-dimensional arrays
Abstract
d-dimensional array of real numbers is called monotone increasing if its entries are increasing along each dimension. Given A"n","d, a monotone increasing d-dimensional array with n entries along each dimension, and a real number x, we want to decide whether [email protected]?A"n","d, by performing a sequence of comparisons between x and some entries of A"n","d. We want to minimize the number of comparisons used. In this paper we investigate this search problem, we generalize Linial and Saks' search algorithm [N. Linial, M. Saks, Searching ordered structures, J. Algorithms 6 (1985) 86-103] for monotone three-dimensional arrays to d-dimensions for d>=4. For d=4, our new algorithm is optimal up to the lower order terms.
Year
DOI
Venue
2008
10.1016/j.disc.2007.04.067
Discrete Mathematics
Keywords
DocType
Volume
partially ordered set,complexity,search algorithm,monotone multi-dimensional array,3 dimensional
Journal
308
Issue
ISSN
Citations 
11
Discrete Mathematics
2
PageRank 
References 
Authors
0.36
2
3
Name
Order
Citations
PageRank
Yongxi Cheng112515.23
Xiaoming Sun228041.19
Yiqun Lisa Yin3113875.24