Perhaps you should try some spelling variations:
"modified parameters estimation algorithm" » "modified parameter estimation algorithm", "modified parameter estimates algorithm", "modified parameter optimization algorithm"
"modified passive approximation algorithms" » "modified time approximation algorithms", "modified adaptive approximation algorithms"

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 parameters estimation algorithm") OR ("modified passive approximation algorithms"))~.
• Removing quotes may allow a broader search: (( modified parameters estimation algorithm ) or ( modified passive approximation algorithms ))~.
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