XNOR similarity

Definition

The similiarity function XNOR is a similarity function $XNOR: \{0,1\}\times \{0,1\}\longrightarrow [0,1]$ such that $\forall x,y\in \{0,1\}$

Failed to parse (unknown function "\begin{array}"): {\displaystyle XNOR(x,y)= \left\{% \begin{array}{ll} 1, & \hbox{si $x=y$;} \\ 0, & \hbox{si $x\neq y$.} \\ \end{array}% \right. }

True value table for the XNOR function

$x$	$y$	$XNOR(x,y)$
0	0	1
0	1	0
1	0	0
1	1	1

Normalization

It is normalized.

References

• http://en.wikipedia.org/wiki/XNOR