The authors wish to make the following erratum to this paper []:
One the basis of the current author list, the affiliation of author Zhihong Tian should be with both 1 and 2, in accordance with the following format:
Zhihong Tian 1,2,*
The authors would like to apologize for any inconvenience caused to the readers by these changes.
References
- Wang, Y.; Tian, Z.; Zhang, H.; Su, S.; Shi, W. A Privacy Preserving Scheme for Nearest Neighbor Query. Sensors 2018, 18, 2440. [Google Scholar] [CrossRef] [PubMed]
 
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