The initial set of individuals (initial population) is created as depicted below.
Therefore, during the early stage of the iteration process, the individuals will move in the direction towards the optimal individual of the initial population, which can speed up the convergent speed.
The elastic instability analysis is then carried out for each individual in the initial population until the ultimate load factor is reached.
Moreover, each individual in the initial population is pre-assigned a specific skill factor (see Definition 2) in a manner that guarantees every task to have uniform number of representatives.
Step 4: Calculate the fitness values ((f_{1} = f_{text{oc}}) and (f_{2} = f_{text{lpsp}})) of every individual in the initial population, each corresponding to a different optimization objective.
X_{i} = left[ {P_{{{text{con}}i1}},P_{{{text{con}}i2}}, cdots,P_{{{text{con}}i24}} } right] (14) Step 4: Calculate the fitness values ((f_{1} = f_{text{oc}}) and (f_{2} = f_{text{lpsp}})) of every individual in the initial population, each corresponding to a different optimization objective.
The mutation parameter μ for each individual in the initial population was selected randomly from a uniform distribution between 0 and 1.
To generate the i-th individual of the initial population (1 ≤ i ≤ Np), first, we define a probability pAG = (i – 1.0)/(Np – 1.0).
Population's selection and duplication: In order to select good individuals from the N = H initial populations, the probability method which is direct proportional to the individual fitness is adopted.
For example, 10100 should be decoded as 20. 4. Population's selection and duplication: In order to select good individuals from the N = H initial populations, the probability method which is direct proportional to the individual fitness is adopted.
However, this pattern is less obvious for the profile B. Using a mathematical model, we identified six typical profiles of geographical and temporal spread of an influenza pandemic, and the two key parameters influencing these profiles: the proportion of susceptible individuals in the initial population and the basic rate of transmission between individuals.
