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…
Tag: PCA
Multi-Threaded Principle Component Analysis
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…
SAS implementation of Kernel PCA
Kernel method is a very useful technique in data mining that is applicable to any algorithms relying on inner product [1]. The key is applying appropriate kernel function to the inner product of original data space.
I show here SAS/STAT+BASE ex…