We consider the problem of calibration and the GREG method as suggested and studied in Deville and Sarndal (1992). We show that a GREG type estimator is typically not minimal variance unbiased estimator even asymptotically. We suggest a similar estimator which is unbiased but is asymptotically with a minimal variance.
Karlsruhe Institute of Technology（卡尔斯鲁厄理工学院）；ETH Zurich（苏黎世联邦理工学院）；Tsinghua University（清华大学）；HOCH Health Ostschweiz, Kantonsspital St. Gallen（瑞士东部健康组织，圣加仑州立医院）
Calibration Strategies for Robust Causal Estimation: Theoretical and Empirical Insights on Propensity Score-Based Estimators
Economic AI, Nürnberger Str. 262 A, 93059 Regensburg, Bayern, Germany（经济人工智能，德国雷根施塔特）；Chair of Statistics with Application in Business Analytics, University of Hamburg Business School, Moorweidenstr. 18, 20148 Hamburg, Hamburg, Germany（商务分析统计学系，汉堡大学商业学院）；Chair of Mathematics and Statistics in Economics, University of Hamburg Business School, Von-Melle-Park 5, 20146 Hamburg, Hamburg, Germany（经济学数学与统计学系，汉堡大学商业学院）；Düsseldorf Institute for Competition Economics, Heinrich Heine University Düsseldorf, Universitätstr. 1, 20225 Düsseldorf, Nordrhein-Westphalen, Germany（多特蒙德竞争经济学研究所，杜伊斯堡-艾森大学）
A Critical Perspective on Finite Sample Conformal Prediction Theory in Medical Applications
Max Planck Institute for Intelligent Systems, Germany（德国马克斯·普朗克智能系统研究所）；Tübingen AI Center, Germany（图宾根人工智能中心）；ELLIS Institute Tübingen, Germany（图宾根ELLIS研究所）；Department of Digital Medicine, University of Bern, Switzerland（伯恩大学数字医学系）；Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism UDEM, Inselspital, Bern University Hospital, University of Bern, Switzerland（伯恩大学糖尿病、内分泌学、营养医学和代谢学系）；Diabetes Center Berne, Bern, Switzerland（伯恩糖尿病中心）；University of Tübingen, Germany（图宾根大学）；University of Lucerne, Switzerland（卢塞恩大学）
When Unpaired Sets Support Shared-Corruption Calibration: Moment Geometry and Two-Sample Precision
University of California, San Diego（加州大学圣地亚哥分校）；University of Michigan, Ann Arbor（密歇根大学安娜堡分校）；Boston College（波士顿学院）；ShanghaiTech University（上海科技大学）；South China University of Technology（华南理工大学）；Tsinghua University（清华大学）；Huazhong University of Science and Technology（华中科技大学）
