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Standardized median difference for quality control in high-throughput screening
Huang W.2; Zhang X.D.1; Li Y.2; Wang W.W.1; Soper K.1
2012-10-26
Source PublicationProceedings of 2012 International Symposium on Information Technologies in Medicine and Education, ITME 2012
Volume1
Pages515-518
AbstractHigh-throughput screening (HTS) of large-scale ribonucleic acid interference (RNAi) libraries has been widely used in functional genomics in recent years. The Z-factor and strictly standardized mean difference (SSMD) have already become two popular methods for quality control (QC) in HTS experiments. This paper is intended to put forward a robust parameter, standardized median difference (SMD), for group comparison and derive some statistical properties of SMD, such as maximum likelihood estimate (MLE), moment-method (MM) estimate and plug-in estimate of SMD as well as their relative asymptotical distributions. Using the simulations, the plug-in estimate of SMD obtains QC results robust to outliers whereas the Z-factor and SSMD obtain QC results sensitive to outliers. Meanwhile, compared to other QC metrics, the SMD also obtains non-inferior QC results when there are no outliers. © 2012 IEEE.
DOI10.1109/ITiME.2012.6291354
URLView the original
Language英語
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Citation statistics
Document TypeConference paper
CollectionFaculty of Health Sciences
Affiliation1.Merck Research Laboratories
2.Beijing Normal University
Recommended Citation
GB/T 7714
Huang W.,Zhang X.D.,Li Y.,et al. Standardized median difference for quality control in high-throughput screening[C],2012:515-518.
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