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Publicado en línea: 01 sept 2015
Páginas: 1837 - 1854
Recibido: 15 abr 2015
Aceptado: 12 jul 2015
DOI: https://doi.org/10.21307/ijssis-2017-832
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© 2015 Xing Haihua et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Haihua, Xing
College of Information Science and Technology, Beijing Normal UniversityBeijing, China
College of Information Science and Technology, Hainan Normal UniversityHaikou, China
Xianchuan, Yu
College of Information Science and Technology, Beijing Normal UniversityBeijing, China
Dan, Hu
College of Information Science and Technology, Beijing Normal UniversityBeijing, China
Sha, Dai
College of Information Science and Technology, Beijing Normal UniversityBeijing, China