General dictionary or encyclopedia representations of words, images, and concepts satisfy many needs. The probabilistic machine learning approach is applied very efficiently to marketing by Facebook, Amazon, Google, Microsoft, IBM, and many other corporations.
Probabilistic machine learning training remains efficient when targeting apparels, food, books, music, travel, cars, and other market consumer segments.
However, humans are not just consumers; they are human beings. When they contact websites or call centers, standard answers or stereotyped emotional tone analysis approaches can depend on one's nerves. When humans are in contact with doctors, lawyers, and other professional services, a touch of humanity is necessary if major personal crises occur.
The PCA phase is there to build a mental representation of X's profile either to communicate...