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

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( parameters estimation algorithmssss ) OR ( allocation estimation algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( parameters estimation algorithmssss ) OR ( allocation estimation algorithms ))*.