Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm
learning solution » learning convolution, learning emotion
seird estimation » sphere estimation, risk estimation
active learning » machine learning
modified seird » modified near

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• Performing a fuzzy search may retrieve terms with similar spellings: (( active learning solution algorithm ) or ( modified seird estimation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( active learning solution algorithm ) OR ( modified seird estimation algorithms )).
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