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

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