Perhaps you should try some spelling variations:
quantization algorithms » estimation algorithms, optimization algorithms
passive quantization » adaptive quantization
optimized algorithm » optimized algorithms, optimizer algorithms
modified passive » modified adaptive
df optimized » _ optimized, _ optimize
modified df » modified _, modified adam, modified bi1

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: "(( modified passive quantization algorithms ) OR ( modified df optimized algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( modified passive quantization algorithms ) OR ( modified df optimized algorithm ))*.