CAJ | 학술논문

在移动互联网中，移动用户把个人位置信息发送到位置服务提供者并通过空间查询获取兴趣点数据；在连续空间查询中，用户沿着轨迹提交多个位置信息，这导致了严重的用户隐私风险。近年来，连续空间查询的位置隐私保护技术成为无线网络安全和隐私领域的研究热点。首先介绍了位置服务中的空间查询和隐私威胁；归纳了连续空间查询的隐私保护模型，并比较了对应的隐私保护方法。最后介绍了发展趋势并指明了未来的研究方向。
재이동호련망중，이동용호파개인위치신식발송도위치복무제공자병통과공간사순획취흥취점수거；재련속공간사순중，용호연착궤적제교다개위치신식，저도치료엄중적용호은사풍험。근년래，련속공간사순적위치은사보호기술성위무선망락안전화은사영역적연구열점。수선개소료위치복무중적공간사순화은사위협；귀납료련속공간사순적은사보호모형，병비교료대응적은사보호방법。최후개소료발전추세병지명료미래적연구방향。
In the mobile Internet,mobile users send their personal location information to location based service(LBS)pro-viders and obtain point of interest(POI)data via spatial queries.In a continuous spatial query,a user submits multiple loca-tions along his trajectory.This query led to serious user privacy risks.Recently,the location privacy preservation technique of continuous spatial queries became a research hotspot in the wireless network security and privacy area.First,this paper intro-duced spatial queries and privacy threats in LBS.Next,it summed up privacy preservation models for continuous spatial que-ries,and compared the corresponding privacy preservation methods.Finally,it indicated the trends and future directions.