Perhaps you should try some spelling variations:
quantization algorithms » estimation algorithms, optimization algorithms
approximation algorithm » approximation algorithms
passive quantization » adaptive quantization
near approximation » one approximation, network approximation, _ approximation
modified passive » modified adaptive
modified near » modified seird, modified adam

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