Perhaps you should try some spelling variations:
parameters optimization » parameter optimization, parameter estimation
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
training methods » graining methods, learning methods, learning method
based training » based learning

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( based training methods algorithm ) or ( modified parameters optimization algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( based training methods algorithm ) OR ( modified parameters optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( based training methods algorithm ) or ( modified parameters optimization algorithm ))*.