Li, Zhengbang; Li, Qizhai; Han, Chien-Pai; Li, Bo - In: Computational Statistics & Data Analysis 75 (2014) C, pp. 239-247
Missing data often arise in practice. The commonly employed approach to handle the missing data is imputation, which is effective when the missing mechanism is known and each subject in the data set misses at random. However, the situation where the imputation is not appropriate often emerged....