Information Technology Reference
knowledge is beyond the scope of this chapter, but additional information is available in
(López De Luise, 2005, 2008, 2008b, 2008c, 2007b, 2007c).
Fig. 2. Signal and frequency decomposition
Fig. 3. Original text and knowledge structure model
Figure 4 shows a sample wavelet decomposition. It is a signature decomposition using a
Daubechies wavelet, a wavelet specially suited for this type of image. Figure 5 shows a
MLW decomposition of a generic text. There, C i , and C j,k stand for abstract knowledge and
F m represents filters. This Figure will be described further in the final section.