Local Empirical Likelihood Inference for Varying-Coefficient Density-Ratio Models Based on Case-Control Data
病例对照数据变系数密度比模型的局部经验似然推断
In this article, we develop a varying-coefficient density-ratio model for case-control studies. The case and control samples come from two different distributions. Under the model assumption, the ratio of the two densities is related to the linear combination of covariates with varying coefficients through a known function. A special case is the exponential tilt model where the log ratio of the two densities is a linear function of covariates. We propose a local empirical…