Perhaps you should try some spelling variations:
"modified bi1 convolutional algorithms" » "modified bi1 convolution algorithms", "modified bi1 evolution algorithm", "modified bi1 evolutionary algorithm", "modified d convolutional algorithms", "modified deep convolutional algorithms", "modified _ convolutional algorithms"
"modified notion estimation algorithms" » "modified notion estimation algorithm", "modified notion optimization algorithms", "modified notion optimisation algorithm", "modified motion estimation algorithms"

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