Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
optimizer algorithms » optimized algorithms, optimized algorithm, optimization algorithms
parameter optimizer » parameter optimization
robust estimation » robust optimization, pose estimation, risk estimation

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( parameter optimizer algorithms ) OR ( robust estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( parameter optimizer algorithms ) or ( robust estimation algorithms ))*.