RT Journal T1 Privacy preservation for location-based services A1 Hai-yan KANG,Wan-xiang ZHU PB JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) FD 2018-11-01 YR 2018 JF JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) JO JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE) VO 53 IS 11 SP 35 DO 10.6040/j.issn.1671-9352.0.2018.128 K1 ;location service;location privacy;query privacy;trajectory privacy;privacy preservation LK {http://lxbwk.njournal.sdu.edu.cn/EN/article/article_2990.shtml}