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JUCS - Journal of Universal Computer Science 26(10): 1331-1342
doi:
10.3897/jucs.2020.069
Received:
26 Mar 2019 | Approved:
24 Sep 2020 | Published:
28 Oct 2020
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Authors
Xia He 
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Huaiyin Institute of Technology, Huaian, China
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Chinese Academy of Social Sciences, Beijing, China
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Nanjing University of Posts and Telecommunications, Nanjing, China
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Conflict of interest
The authors have declared that no competing interests exist.
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