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Artificial Intelligence and Soft Computing: Behavioral ... - Arteimi.info

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where φ <strong>and</strong> I denote null <strong>and</strong> identity matrices of dimension (3 x 3)<br />

respectively. With these values of P'fm <strong>and</strong> Q'fm, we found that the reciprocity<br />

conditions 10.23(a) <strong>and</strong> (b) hold good.<br />

It is clear fro expressions 10.23(a) <strong>and</strong> (b) that the condition of<br />

reciprocity depends on both the structure of the FPN <strong>and</strong> the relational<br />

matrices associated with it. Thus for a given structure of an FPN,<br />

identification of the relational matrices (Rfm , Rbm) satisfying the reciprocity<br />

conditions is a design problem. In fact, rearranging expression 10.23 (a) <strong>and</strong><br />

(b) ,we find Rf m <strong>and</strong> Rb m as follows<br />

R f m = [(Q ' f m ) T ] -1 pre o [(Q ' f m o I c ) c ] -1 post (10.24)<br />

R b m = [{(P ' f m) T o (P ' f m) c } c ] -1 post (10.25)<br />

where the suffix 'pre' <strong>and</strong> 'post' denote pre-inverse <strong>and</strong> post-inverse of the<br />

matrices.<br />

p1<br />

p2<br />

tr2<br />

p3<br />

tr1<br />

tr4<br />

tr6<br />

tr7<br />

p4<br />

p5<br />

p6<br />

Fig. 10.14: The FPN of fig. 10.10 with self-loop around axioms (<strong>and</strong> renamed<br />

transitions) that supports reciprocity theorem.<br />

tr5<br />

p9<br />

tr10<br />

tr12<br />

tr11<br />

tr9<br />

p8<br />

tr8

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