Title
FastLSU - A more practical approach for the Benjamini-Hochberg FDR controlling procedure for huge-scale testing problems.
Abstract
Motivation: We address a common problem in large-scale data analysis, and especially the field of genetics, the huge-scale testing problem, where millions to billions of hypotheses are tested together creating a computational challenge to control the inflation of the false discovery rate. As a solution we propose an alternative algorithm for the famous Linear Step Up procedure of Benjamini and Hochberg. Results: Our algorithm requires linear time and does not require any P-value ordering. It permits separating huge-scale testing problems arbitrarily into computationally feasible sets or chunks. Results from the chunks are combined by our algorithm to produce the same results as the controlling procedure on the entire set of tests, thus controlling the global false discovery rate even when P-values are arbitrarily divided. The practical memory usage may also be determined arbitrarily by the size of available memory.
Year
DOI
Venue
2016
10.1093/bioinformatics/btw029
BIOINFORMATICS
DocType
Volume
Issue
Journal
32
11
ISSN
Citations 
PageRank 
1367-4803
1
0.36
References 
Authors
3
2
Name
Order
Citations
PageRank
Vered Madar1172.07
Sandra Batista210.36