Social-aware spatial keyword top-k group query
Social-aware spatial keyword top-k group query
复制标题
社交感知空间关键词top-k组查询
DOI:
10.1007/s10619-020-07292-0
复制
发表时间:
2020-05
影响因子:
1.2
通讯作者:
Xin Bi
中科院分区:
文献类型:
--
作者:
Xiangguo Zhao;Zhen Zhang;Hong Huang;Xin Bi
With the increasing popularity of location-based social networking services, information in social networks has become an important basis for analyzing user preferences. However, the existing spatial keyword group query only focuses on the distance constraint between the user groups, and ignores the social relationship between the user and his friends, which may affect the query results. Therefore, in order to meet the diverse query needs of user groups and improve user satisfaction based on information in social networks, this paper proposes a social-aware spatial keyword top-k group query problem. This problem aims to retrieve a set of k groups of POI objects that satisfy the preferences of multiple users, taking into account spatial proximity, social relevance, and keyword constraints. To solve this problem, we first design a rank function to measure the correlation between the query set and the candidate set. Next, in order to improve the query efficiency, we develop a novel hybrid index structure, SAIR-tree, which comprehensively considers the attributes of social, spatial, and textual. Then, we propose an approximate algorithm and an exact algorithm, combining with the pruning strategy, can efficiently search the top-k result set. Finally, experiments on real dataset confirm the efficiency and accuracy of the proposed algorithms.
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DOI:
10.1016/j.datak.2019.05.004
发表时间:
2019-07
期刊:
Data Knowl. Eng.
影响因子:
--
作者:
Zijun Chen;Tingting Zhao;Wenyuan Liu
通讯作者:
Zijun Chen;Tingting Zhao;Wenyuan Liu
DOI:
10.1145/2772600
发表时间:
2015-06
期刊:
ACM Trans. Database Syst.
影响因子:
--
作者:
Xin Cao;G. Cong;Tao Guo;Christian S. Jensen;B. Ooi
通讯作者:
Xin Cao;G. Cong;Tao Guo;Christian S. Jensen;B. Ooi
DOI:
10.24963/ijcai.2019/672
发表时间:
2019-08
期刊:
--
影响因子:
--
作者:
Chengcheng Yang;Lisi Chen;Shuo Shang;Fan Zhu;Li Liu;Ling Shao
通讯作者:
Chengcheng Yang;Lisi Chen;Shuo Shang;Fan Zhu;Li Liu;Ling Shao
DOI:
10.1145/1867699.1867707
发表时间:
2010-11
期刊:
--
影响因子:
--
作者:
Y. Doytsher;Ben Galon;Y. Kanza
通讯作者:
Y. Doytsher;Ben Galon;Y. Kanza
影响因子:
11.8
作者:
Jia Wu;Shirui Pan;Xingquan Zhu;Z. Cai
通讯作者:
Jia Wu;Shirui Pan;Xingquan Zhu;Z. Cai