Analyzing Qualitative Predictors with Too Few Data: An Alternative Approach to Handling Sparse-Cell Values
提出一种处理定性预测变量中稀疏单元格值的新方法，适用于数据量不足时的分析场景，对市场研究人员和统计学家有参考价值。
William R. Dillon, Matthew Goldstein, Lucy Lement, Analyzing Qualitative Predictors with Too Few Data: An Alternative Approach to Handling Sparse-Cell Values, Journal of Marketing Research, Vol. 18, No. 1 (Feb., 1981), pp. 63-72