Independent component analysis (ICA) is a method for finding underlying factors or

components multivariate (multidimensional) statistical data. What distinguishes

ICA other methods is that it looks for components that are both statistically

independent, and nongaussian. Here we briefly introduce the basic concepts, applications,

and estimation principles of ICA.-Independent component analysis (ICA) is a method for finding underlying factors or

components　multivariate (multidimensional) statistical data. What distinguishes

ICA　other methods is that it looks for components that are both statistically

independent, and nongaussian. Here we briefly introduce the basic concepts, applications,

and estimation principles of ICA.