A Prefix-Filter based Method for Spatio-Textual Similarity Join
A Prefix-Filter based Method for Spatio-Textual Similarity Join
复制标题
基于前缀过滤的空间文本相似度连接方法
DOI:
10.1109/tkde.2013.83
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发表时间:
2014-10
期刊:
影响因子:
--
通讯作者:
Jianhua Feng
中科院分区:
文献类型:
--
作者:
Sitong Liu;Guoliang Li;Jianhua Feng
Location-based services have attracted significant attention due to modern mobile phones equipped with GPS devices. These services generate large amounts of spatio-textual data which contain both spatial location and textual descriptions. Since a spatio-textual object may have different representations, possibly because of deviations of GPS or different user descriptions, it calls for efficient methods to integrate spatio-textual data from different sources. In this paper we study a new research problem called spatio-textual similarity join: given two sets of spatio-textual objects, find the similar object pairs. We make the following contributions: (1) We develop a filter-and-refine framework and devise several efficient algorithms. We extend the prefix filter technique to generate spatial and textual signatures for the objects and build inverted index on top of these signatures. Then we generate candidate pairs using the inverted lists of signatures. Finally we refine the candidates and generate the final result. (2) We study how to generate high-quality signatures for spatial information. We develop an MBR-prefix based signature to prune large numbers of dissimilar object pairs. (3) We propose a hybrid signature scheme to support both textual pruning and spatial pruning simultaneously. (4) Experimental results on real and synthetic datasets show that our algorithms achieve high performance and scale well.
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影响因子:
2.5
作者:
Wang, Jiannan;Feng, Jianhua;Li, Guoliang
通讯作者:
Li, Guoliang
DOI:
10.1145/191839.191881
发表时间:
1994-05
期刊:
--
影响因子:
--
作者:
Ming-Ling Lo;C. Ravishankar
通讯作者:
Ming-Ling Lo;C. Ravishankar
DOI:
--
发表时间:
1997-08
期刊:
--
影响因子:
--
作者:
Yun-Wu Huang;N. Jing;Elke A. Rundensteiner
通讯作者:
Yun-Wu Huang;N. Jing;Elke A. Rundensteiner
DOI:
10.1145/1367497.1367516
发表时间:
2008-04
期刊:
--
影响因子:
--
作者:
Chuan Xiao;Wei Wang;Xuemin Lin;J. Yu;Guoren Wang
通讯作者:
Chuan Xiao;Wei Wang;Xuemin Lin;J. Yu;Guoren Wang
影响因子:
2.5
作者:
Xiao, Chuan;Wang, Wei;Lin, Xuemin
通讯作者:
Lin, Xuemin