Top-k temporal keyword search over social media data
Top-k temporal keyword search over social media data
复制标题
社交媒体数据上的 Top-k 时间关键词搜索
DOI:
10.1007/s11280-016-0430-0
复制
发表时间:
2017-01
影响因子:
3.7
通讯作者:
Zhou Aoying
中科院分区:
文献类型:
--
作者:
Xia Fan;Yu Chengcheng;Xu Linhao;Qian Weining;Zhou Aoying
Social media services have already become main sources for monitoring emerging topics and sensing real-life events. A social media platform manages social stream consisting of a huge volume of timestamped user generated data, including original data and repost data. However, previous research on keyword search over social media data mainly emphasizes on the recency of information. In this paper, we first propose a problem of top-k most significant temporal keyword query to enable more complex query analysis. It returns top-k most popular social items that contain the keywords in the given query time window. Then, we design a temporal inverted index with two-tiers posting list to index social time series and a segment store to compute the exact social significance of social items. Next, we implement a basic query algorithm based on our proposed index structure and give a detailed performance analysis on the query algorithm. From the analysis result, we further refine our query algorithm with a piecewise maximum approximation (PMA) sketch. Finally, extensive empirical studies on a real-life microblog dataset demonstrate the combination of two-tiers posting list and PMA sketch achieves remarkable performance improvement under different query settings.
登录
查看更多内容
影响因子:
4.2
作者:
Xia, Fan;He, Xiaofeng;Xu, Jun;Zhou, Aoying
通讯作者:
Zhou, Aoying
影响因子:
1.6
作者:
Arge, L;Vitter, JS
通讯作者:
Vitter, JS
DOI:
10.1109/icde.2013.6544849
发表时间:
2013-04
期刊:
2013 IEEE 29th International Conference on Data Engineering (ICDE)
影响因子:
--
作者:
Lingkun Wu;Wenqing Lin;Xiaokui Xiao;Yabo Xu
通讯作者:
Lingkun Wu;Wenqing Lin;Xiaokui Xiao;Yabo Xu
DOI:
10.1109/cgc.2012.110
发表时间:
2012-11
期刊:
2012 Second International Conference on Cloud and Green Computing
影响因子:
--
作者:
Ming Gao;Cheqing Jin;Weining Qian;Xueqing Gong
通讯作者:
Ming Gao;Cheqing Jin;Weining Qian;Xueqing Gong
DOI:
10.1137/1.9781611972771.59
发表时间:
2006-05
期刊:
ArXiv
影响因子:
--
作者:
D. Lemire
通讯作者:
D. Lemire