set presently has 13 questions. Reviewing them it seems about half of them should have been marked with assignment, variable-definitions, or perhaps function-construction, and the rest likely mean it in the mathematical sense or simply list-manipulation. There is also sets which appears to be used more consistently. I propose eliminating set.
conditioned presently has 20 questions. It seems mostly to be used where conditional (87 questions) would apply. I propose making it synonymous. If there is need for a different meaning a more qualified tag name should be used.
image-filtering presently has 21 questions. I question its distinction from image-processing (629 question) and propose making it synonymous. Further there exists filtering if extra specificity is justified.
Please comment or answer if you disagree with any of these proposals. Include your reasoning, and any counter-proposals if such apply. I shall take silence as tacit acquiescence and proceed with the changes.