Search Results for author: Zhonglei Wang

Found 3 papers, 0 papers with code

Mixed Matrix Completion in Complex Survey Sampling under Heterogeneous Missingness

no code implementations6 Feb 2024 Xiaojun Mao, Hengfang Wang, Zhonglei Wang, Shu Yang

Modern surveys with large sample sizes and growing mixed-type questionnaires require robust and scalable analysis methods.

Matrix Completion Nutrition +1

Nonparametric Feature Selection by Random Forests and Deep Neural Networks

no code implementations18 Jan 2022 Xiaojun Mao, Liuhua Peng, Zhonglei Wang

Random forests are a widely used machine learning algorithm, but their computational efficiency is undermined when applied to large-scale datasets with numerous instances and useless features.

BIG-bench Machine Learning Computational Efficiency +1

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