CPC Subgroup
G06F 18/21375 Full Title
Pattern recognition > Analysing > Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation > Feature extraction, e.g. by transforming the feature space; Summarisation; Mappings, e.g. subspace methods > based on criteria of topology preservation, e.g. multidimensional scaling or self-organising maps