432 search results - page 1 / 87 » An optimal algorithm for the distinct elements problem |
PODS
2010
ACM
14 years 3 months ago
2010
ACM
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
ICDT
2009
ACM
14 years 11 months ago
2009
ACM
We continue the study of approximating the number of distinct elements in a data stream of length n to within a (1? ) factor. It is known that if the stream may consist of arbitra...
COCO
2001
Springer
14 years 3 months ago
2001
Springer
We present several applications of quantum amplitude amplification to finding claws and collisions in ordered or unordered functions. Our algorithms generalize those of Brassard...
ICALP
2001
Springer
14 years 3 months ago
2001
Springer
We consider the quantum complexities of the following three problems: searching an ordered list, sorting an un-ordered list, and deciding whether the numbers in a list are all dis...
CEC
2010
IEEE
13 years 12 months ago
2010
IEEE
Many-objective problems are difficult to solve using conventional multi-objective evolutionary algorithms (MOEAs) as these algorithms rely primarily on Pareto ranking to guide the ...