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    "description": "Normalized form of codrna (351)\r\n\r\n**Author**: Andrew V Uzilov\",\"Joshua M Keegan\",\"David H Mathews.  \r\n**Source**: [original](http:\/\/www.csie.ntu.edu.tw\/~cjlin\/libsvmtools\/datasets) -   \r\n**Please cite**: [AVU06a]\r\nAndrew V Uzilov, Joshua M Keegan, and David H Mathews. \r\nDetection of non-coding RNAs on the basis of predicted secondary structure formation free energy change. \r\nBMC Bioinformatics, 7(173), 2006.  \r\n\r\nThis is the cod-rna dataset, retrieved 2014-11-14 from the libSVM site. Additional to the preprocessing done there (see LibSVM site for details), this dataset was created as follows: \r\n-join test, train and rest datasets   \r\n-normalize each file columnwise according to the following rules:    \r\n-If a column only contains one value (constant feature), it will set to zero and thus removed by sparsity.    \r\n-If a column contains two values (binary feature), the value occuring more often will be set to zero, the other to one.    \r\n-If a column contains more than two values (multinary\/real feature), the column is divided by its std deviation.    \r\n\r\nNOTE: please keep in mind that cod-rna has many duplicated data points, within each file (train,test,rest) and also accross these files. these duplicated points have not been removed!\r\n\r\n",
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    "date": "2015-02-14 02:50:40",
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