
Immune System Modelling and Simulation
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where ⊙ is the bit-string concatenation operator, and the
functions Affi nity and MHCAffi nity are the ones discussed in
the previous sections. Going into details, p
1
(i, j) computes the
probability that the TCR binds the binary string composed by
the part of the MHC to the left and the part of the peptide to the
right and q
1
(i, j) is the probability that the latter actually bind.
The same, but for the part of the MHC to the left and the left side
of the peptide, is given by the expressions for p
2
(i, j) and q
2
(i, j).
This alternate matching comparison is depicted in Figure 42.
The elevation to the power ...