Perhaps you should try some spelling variations:
"allocation estimation algorithmssssssssss" » "allocation optimization algorithmssssssssss", "motion estimation algorithmssssssssss", "allocation estimation algorithmsssssssss", "allocation optimisation algorithmsssssssss"
"parameters estimation algorithms" » "parameter estimation algorithms", "parameter estimates algorithms", "parameter optimization algorithms", "parameters estimation algorithm", "parameters optimization algorithms", "parameters optimisation algorithm"

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