The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Fast gene set enrichment analysis
Open accessAbstract
Gene set enrichment analysis (GSEA) is an ubiquitously used tool for evaluating pathway enrichment in transcriptional data. Typical experimental design consists in comparing two conditions with several replicates using a differential gene expression test followed by preranked GSEA performed against a collection of hundreds and thousands of pathways. However, the reference implementation of this method cannot accurately estimate small P-values, which significantly limits its sensitivity due to multiple hypotheses correction procedure. Here we present FGSEA (Fast Gene Set Enrichment Analysis) method that is able to estimate arbitrarily low GSEA P-values with a high accuracy in a matter of minutes or even seconds. To confirm the accuracy of the method, we also developed an exact algorithm for GSEA P-values calculation for integer gene-level statistics. Using the exact algorithm as a reference we show that FGSEA is able to routinely estimate P-values up to 10 −100 with a small and predictable estimation error. We systematically evaluate FGSEA on a collection of 605 datasets and show that FGSEA recovers much more statistically significant pathways compared to other implementations. FGSEA is open source and available as an R package in Bioconductor ( http://bioconductor.org/packages/fgsea/ ) and on GitHub ( https://github.com/ctlab/fgsea/ ).
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Metadata
- Authors
- Korotkevich, G., Sukhov, V., Budin, N., Shpak, B., Artyomov, M. N., & Sergushichev, A.
- Venue
- bioRxiv (Cold Spring Harbor Laboratory)
- Publisher
- openRxiv
- Published
- 2016-06-20
- OpenAlex
- W3099862724
- Cited by
- 3,454
- References
- 1
- Type
- posted content
- Language
- en
- Open access
- green
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- Korotkevich, G., Sukhov, V., Budin, N., Shpak, B., Artyomov, M. N., & Sergushichev, A. (2016). Fast gene set enrichment analysis. bioRxiv (Cold Spring Harbor Laboratory). https://doi.org/10.1101/060012
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