... 12 14 00.10.20.30.40.50.60.70.80.9Number of sourcesError index E21/2FP FPsymth NPCA−RLSACY EASI ExtBS Fig. 14. 3Error as a function of the number of ICs. (Reprinted from [147 ], ... batch fixed-point algorithms.At the end of this chapter, we provide a short summary of the whole of Part II,that is, of basic ICA estimation. 14. 1 OBJECTIVE FUNCTIONS VS. ALGORITHMSA distinction ... performance, Fig. 14. 1 shows that best results are obtained byusing atanhnonlinearity (with the right sign). This was to be expected accordingto the theoretical analysis of Section 14. 3. tanh is...