Definition: Weighted minimal set
UN - Data editing terminology
A minimal set in which fields are weighted according to reliability in generating imputations. If fields (variables) are given weights, then it is the set of fields that give the minimum weight. There may be two of more sets that give the same minimum.
Economic Commission for Europe of the United Nations (UNECE), The Knowledge Base on Statistical Data Editing, Online glossary developed by the UNECE Data Editing Group, 2000