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Measuring reproducibility of high-throughput experiments

Open access
Li, Qunhua, Brown, James B., Huang, Haiyan, Bickel, Peter J.·2011·The Annals of Applied Statistics

Abstract

Reproducibility is essential to reliable scientific discovery in high-throughput experiments. In this work we propose a unified approach to measure the reproducibility of findings identified from replicate experiments and identify putative discoveries using reproducibility. Unlike the usual scalar measures of reproducibility, our approach creates a curve, which quantitatively assesses when the findings are no longer consistent across replicates. Our curve is fitted by a copula mixture model, from which we derive a quantitative reproducibility score, which we call the “irreproducible discovery rate” (IDR) analogous to the FDR. This score can be computed at each set of paired replicate ranks and permits the principled setting of thresholds both for assessing reproducibility and combining replicates. Since our approach permits an arbitrary scale for each replicate, it provides useful descriptive measures in a wide variety of situations to be explored. We study the performance of the algorithm using simulations and give a heuristic analysis of its theoretical properties. We demonstrate the effectiveness of our method in a ChIP-seq experiment.

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Metadata

Authors
Li, Q., Brown, J. B., Huang, H., & Bickel, P. J.
Venue
The Annals of Applied Statistics
Published
2011-09-01
Volume
5
Issue
3
Pages
1752-1779
ISSN
1932-6157 (ISSN-L)
OpenAlex
W2081942683
Cited by
1,009
References
5
FWCI
8.82
Type
journal article
Language
en
Open access
bronze

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.