Posts Tagged ‘ PCA ’

KNN Classification and Regression in SAS

November 25, 2012
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kNN stands for k Nearest Neighbor. In data mining and predictive modeling, it refers to a memory-based (or instance-based) algorithm for classification and regression problems. It is a widely used algorithm with many successfully applications in medi...
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Multi-Threaded Principle Component Analysis

February 1, 2012
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SAS used to not support multithreading in PCA, then I figured out that its server version supports this functionality, see here. Today, I found this mutlithreading capability is finally available in PC SAS v9.22. The figure above indicates th...
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SAS implementation of Kernel PCA

February 6, 2010
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Kernel method is a very useful technique in data mining that is applicable to any algorithms relying on inner product . The key is applying appropriate kernel function to the inner product of original data space. I show here SAS/STAT+BASE ex...
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