Imputing gene expression from selectively reduced probe sets. Donner, Y., Feng, T., Benoist, C., & Koller, D. Nat Methods, 9(11):1120-5, Nov, 2012. doi abstract bibtex Measuring complete gene expression profiles for a large number of experiments is costly. We propose an approach in which a small subset of probes is selected based on a preliminary set of full expression profiles. In subsequent experiments, only the subset is measured, and the missing values are inputed. We developed several algorithms to simultaneously select probes and input missing values, and we demonstrate that these 'probe selection for imputation' (PSI) algorithms can successfully reconstruct missing gene expression values in a wide variety of applications, as evaluated using multiple metrics of biological importance. We analyze the performance of PSI methods under varying conditions, provide guidelines for choosing the optimal method based on the experimental setting, and indicate how to estimate imputation accuracy. Finally, we apply our approach to a large-scale study of immune system variation.
@article{Donner:2012rf,
Abstract = {Measuring complete gene expression profiles for a large number of experiments is costly. We propose an approach in which a small subset of probes is selected based on a preliminary set of full expression profiles. In subsequent experiments, only the subset is measured, and the missing values are inputed. We developed several algorithms to simultaneously select probes and input missing values, and we demonstrate that these 'probe selection for imputation' (PSI) algorithms can successfully reconstruct missing gene expression values in a wide variety of applications, as evaluated using multiple metrics of biological importance. We analyze the performance of PSI methods under varying conditions, provide guidelines for choosing the optimal method based on the experimental setting, and indicate how to estimate imputation accuracy. Finally, we apply our approach to a large-scale study of immune system variation.},
Author = {Donner, Yoni and Feng, Ting and Benoist, Christophe and Koller, Daphne},
Date-Added = {2014-09-26 15:09:48 +0000},
Date-Modified = {2014-09-26 15:09:48 +0000},
Doi = {10.1038/nmeth.2207},
Journal = {Nat Methods},
Journal-Full = {Nature methods},
Mesh = {Algorithms; CD4-Positive T-Lymphocytes; DNA Probes; Gene Expression; Gene Expression Profiling; Humans; Models, Statistical; Oligonucleotide Array Sequence Analysis},
Month = {Nov},
Number = {11},
Pages = {1120-5},
Pmc = {PMC3505039},
Pmid = {23064520},
Pst = {ppublish},
Title = {Imputing gene expression from selectively reduced probe sets},
Volume = {9},
Year = {2012},
Bdsk-Url-1 = {http://dx.doi.org/10.1038/nmeth.2207}}
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