Perhaps you should try some spelling variations:
segmentation techniques » augmentation techniques
imputation techniques » implantation technique, augmentation techniques, floatation technique
sensor segmentation » series segmentation, semantic segmentation
gas sensor » gas sensors
based code » based anode

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• Performing a fuzzy search may retrieve terms with similar spellings: (( learning-gas sensor segmentation techniques ) or ( learning-based code imputation techniques ))~.
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