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Our research was supported by the National Natural Science Foundation of China (NSFC) (Grant Nos. 61532021, U1811264 and U1501252).
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Hua, J., Liu, Y., Shen, Y. et al. A privacy-enhancing scheme against contextual knowledge-based attacks in location-based services. Front. Comput. Sci. 14, 143605 (2020). https://doi.org/10.1007/s11704-019-8300-4
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DOI: https://doi.org/10.1007/s11704-019-8300-4