Semi-parametric optimization for missing data imputation

  • Authors:
  • Yongsong Qin;Shichao Zhang;Xiaofeng Zhu;Jilian Zhang;Chengqi Zhang

  • Affiliations:
  • Deparment of Computer Science, Guangxi Normal University, Beijing, China;School of Automation, Beihang University, Beijing, China;Deparment of Computer Science, Guangxi Normal University, Beijing, China;Deparment of Computer Science, Guangxi Normal University, Beijing, China;School of Automation, Beihang University, Beijing, China

  • Venue:
  • Applied Intelligence
  • Year:
  • 2007

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Abstract

Missing data imputation is an important issue in machine learning and data mining. In this paper, we propose a new and efficient imputation method for a kind of missing data: semi-parametric data. Our imputation method aims at making an optimal evaluation about Root Mean Square Error (RMSE), distribution function and quantile after missing-data are imputed. We evaluate our approaches using both simulated data and real data experimentally, and demonstrate that our stochastic semi-parametric regression imputation is much better than existing deterministic semi-parametric regression imputation in efficiency and effectiveness.