School of Mathematics and Statistics,Henan University of Science and Technology,Luoyang 471023,China;
LMIB of the Ministry of Education,School of Mathematical Sciences,Beihang University,Beijing 100191,China;
State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing 100044,China;
School of Mathematics and Statistics,Wuhan University,Wuhan 430072,China;
Matrix restoration; Alternating direction method of multipliers; Square root least squares; Matrix completion;