User: qinghua xu

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qinghua xu110
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Posts by qinghua xu

<prev • 11 results • page 1 of 2 • next >
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Comment: C: 转发: Statistical approach to compare differentiall expressed gene lists
... Dear Wolfgang, Â It is really nice and surprise to have your attention! Thank you! Â I am sorry that the question was too vague. The detailed figure is that we would like to study the gene expression profiling in human peripheral blood and identify DEGs (differential expressed genes) between male an ...
written 7.9 years ago by qinghua xu110
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转发: Statistical approach to compare differentiall expressed gene lists
... Dear all, ? I?have?identified two lists of differential expressed gene?from the same expression data?but treated with different normalisation methods. List A contains?995 genes and list B contains 2400 genes. More than nine hundreds genes?are overlapped between two lists, namely?most of genes in lis ...
written 7.9 years ago by qinghua xu110 • updated 7.9 years ago by Wolfgang Huber13k
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Statistical approach to compare differentiall expressed gene lists
... Dear all,  I have identified two lists of differential expressed gene from the same expression data but treated with different normalisation methods. List A contains 995 genes and list B contains 2400 genes. More than nine hundreds genes are overlapped between two lists, namely most of genes ...
microarray classification written 7.9 years ago by qinghua xu110
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回复: 回复: : Patent issues of classification algorithms
... Dear  Francois,  Thank you so much for this very helpful information. It is good to know that there is no patent concern for the basic classification methods. At this moment, our goal is just to pulish some results of microarray study, rather than commercializing a test. Not yet.  As working in ...
microarray classification written 7.9 years ago by qinghua xu110
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Comment: C: Patent issues of classification algorithms
... Dear Sean,  Thanks a lot for your prompt reply!  I think the main concern is not the citation issue. That should be OK. I have rapidly checked the "GNU GENERAL PUBLIC LICENSE" under which R packages are released. If I understand correctly, it is more about COPYING, DISTRIBUTION and MODIFICATIO ...
written 7.9 years ago by qinghua xu110
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Patent issues of classification algorithms
... Dear all,  I would like to know is there any patent related concern when try to publish a microarray study using different classification algorithms, like KNNs, Random Forest, Support Vector Machine and so on?  I would appreciate any advice, or pointers to any references for this! Best regards ...
microarray written 7.9 years ago by qinghua xu110 • updated 7.9 years ago by Sean Davis21k
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Answer: A: Sample size estimation for independent validation set
... Dear all,  Currently,we are working with Affymetrix u133plus2 array and interested in classification disease/control using microarray data.  We have identified a molecular signature and trained a svm-based classification model based on 200 samples (100 disease +100 control). We are satisfied wit ...
written 8.0 years ago by qinghua xu110
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feature selection according to sequence information
... Hi everyone, As a matter of fact, we are aware that in affymetrix U133plus2.0 Chip, probesets are targeted to different regions of sequence. Some probesets locate at the coding sequence regions, and others locate at untranslated regions. My question is that is there any function or package existed ...
written 8.6 years ago by qinghua xu110 • updated 8.6 years ago by Christof Winter80
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Question on MLinterfaces Package
... An embedded and charset-unspecified text was scrubbed... Name: not available Url: https://stat.ethz.ch/pipermail/bioconductor/attachments/20080228/ b61d9333/attachment.pl ...
written 9.7 years ago by qinghua xu110 • updated 9.7 years ago by Sean Davis21k
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Cluster stability estimation
... An embedded and charset-unspecified text was scrubbed... Name: not available Url: https://stat.ethz.ch/pipermail/bioconductor/attachments/20071221/ e6a2d93b/attachment.pl ...
written 9.9 years ago by qinghua xu110

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