Perhaps you should try some spelling variations:
"modified passive optimization algorithms" » "modified passive optimisation algorithm", "modified passive estimation algorithm", "modified passive optimized algorithms", "modified bayesian optimization algorithms", "modified game optimization algorithms", "modified policy optimization algorithms"
"modified adaptive estimation algorithms" » "modified adaptive estimation algorithm", "modified adaptive optimisation algorithm", "modified adaptive approximation algorithms", "modified adaptive ventilation algorithms", "modified quantile estimation algorithms", "modified adaptive quantization algorithms"

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