Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithm", "modified allocation optimized algorithms", "modified location optimization algorithms"
"modified over estimation algorithms" » "modified over estimation algorithm", "modified over optimisation algorithm", "modified over approximation algorithms", "modified cover estimations algorithms", "modified pose estimation algorithms", "modified sphere estimation algorithms", "modified near estimation algorithms", "modified orca estimation algorithms"

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