Читать книгу Multiblock Data Fusion in Statistics and Machine Learning - Tormod Næs - Страница 42

Suppose that the same set of samples is measured in the UV-Vis regime (block X1) and with near-infrared (NIR, block X2). Also assume that this set of samples contains three chemical components (A,B,C): A absorbs both in UV-Vis and NIR; B only absorbs in the UV-Vis regime and C absorbs only in NIR. Then the common part is the absorption of A in both data blocks; the distinct parts are B in block 1 and C in block 2. However, at a particular wavelength in the NIR region there may be a contribution from both A and C. Hence, this wavelength, i.e., variable, has a common and a distinct part. The same can happen in block 1.