In addition, in order to give the definition of TPTA, we introduce a generalized linear functional in the tensor space
for the first time.
There are three categories of space mapping transformation algorithms, which are linear space, kernel space, and tensor space
mapping transformation, respectively.
Li, "Face shape recovery from a single image using CCA mapping between tensor space
," In Proc.
Given samples [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], X is regarded as one datasets in the second-order tensor space
[MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII].