Waal, A.G. de

error localisation problem problem value variable solution algorithm record error number localisation chapter section weight constraint method information example suppression microdata category integer table disclosure combination statistic editing population probability approach function statistics netherlands netherland system disclosure control column information loss result set-covering problem model disjunctive-facet problem aggregation sampling weights imputation order respondent set-covering estimate frequency program estimator technique field inequality control theorem ratio distribution sampling data sets research recoding elimination survey instance data editing version report heuristic reliability weights computer disjunctive-facet process measure office error localisation chernikova matrix integer solution vertex objective