Perhaps you should try some spelling variations:
"modified stochastic optimisation algorithms" » "modified stochastic optimization algorithms", "modified static optimization algorithms", "modified stochastic configuration algorithms", "modified stochastic estimation algorithms", "modified stochastic estimation algorithm", "modified stochastic optimization algorithmss", "modified stochastic estimation algorithmss"
"modified parameter optimisation algorithm" » "modified parameter optimization algorithm", "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter estimation algorithms"

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