Institution: | 1. Coll.of Information Science and Engineering,Ocean Univ.of China,Qingdao 266100,P.R.China 2. Huawei Technologies Co.,Ltd,Shenzhen 518129,P.R.China 3. Coll.of Information Science and Engineering,Ocean Univ.of China,Qingdao 266100,P.R.China;Coll.of Mathematics and Computer Science,Hengshui Univ.,Hengshui 053000,P.R.China |