Perhaps you should try some spelling variations:
"modified a simulation algorithms" » "modified a estimation algorithms", "modified a optimization algorithms", "modified a solution algorithm", "modified _ simulation algorithms", "modified df simulation algorithms", "modified adam simulation algorithms"
"modified adamdaptive estimation algorithm" » "modified adaptive estimation algorithm", "modified _damdaptive estimation algorithm", "modified dfdamdaptive estimation algorithm", "modified adamdamdaptive estimation algorithm"

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