@techreport{weko_218655_1,
   author	 = "Ziyu,Guo and Shin,Matsushima",
   title	 = "Learning DAGs Graph Model from Sparse Inverse Covariance",
   year 	 = "2022",
   institution	 = "Department of Information Science and Technology, The University of Tokyo, Department of Information Science and Technology, The University of Tokyo",
   number	 = "25",
   month	 = "jun"
}