Trusted QoS Assurance Approach for Composite Service

<table class="algorithm-group"><tr><td><table class="algorithm" id="alg2"><tr><td> </td><td>Input: The maximum number of iterations: NImax. The size of population: SP. The size of the mating pool: SMP. The size of tournament: ST. The probability of crossover: PC. The probability of mutation: PM. The process of composite service and the QoS of each atomic service.</td></tr><tr><td> </td><td>Output: The selected atomic services and the QoS of composite service.</td></tr><tr><td> </td><td>Steps:</td></tr><tr><td>(1)</td><td>Initialize P←InitialPopulation (SP);</td></tr><tr><td>(2)</td><td>for n = 1; n &lt; NImax + 1; n++</td></tr><tr><td>(3)</td><td>Pparent ← Selection (P, SMP, ST);</td></tr><tr><td>(4)</td><td>Pchild ← GeneticOperation (Pparent, PC, PM);</td></tr><tr><td>(5)</td><td>Pnewchild ← LocalSearch (Pchild);</td></tr><tr><td>(6)</td><td>P ← UpdatePopulation (P, Pnewchild);</td></tr><tr><td>(7)</td><td>end for</td></tr><tr><td>(8)</td><td>return P, QoSmax</td></tr></table></td></tr></table>

Security and Communication Networks

alg2

Algorithm 2

Algorithm 2: Trusted QoS Assurance Approach for Composite Service 