Perhaps you should try some spelling variations:
augmentation techniques » segmentation techniques, imputation techniques
reduction technique » reduction techniques, truncation technique
data augmentation » image augmentation
cross reduction » closed reduction, cross section
based cross » based roms, based access, based closed

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• Performing a fuzzy search may retrieve terms with similar spellings: (( learning-based cross reduction technique ) or ( learning-based data augmentation techniques ))~.
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