Fig. 7
The fitting figure of IBE number and H-H interaction for sequences in table 1 by TPPSO2. The abscissa is H-H interaction of every sequence, and the ordinate is IBM number. Almost all sequences are satisfied with this fitting figure. IBE number will increase with H-H interaction for sequences with the same length. The three stars is the IBE number of test sequence with the same length 27. Their fitting function values are almost matched to computed IBE numbers