Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
quantization algorithm » estimation algorithm
adaptive quantization » adaptive ventilation
modified adaptive » modified passive
df optimisation » _ optimisation, _ optimization, qoe optimization
modified df » modified _, modified adam, modified bi1

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: (( modified adaptive quantization algorithm ) OR ( modified df optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified adaptive quantization algorithm ) or ( modified df optimisation algorithm ))*.