A unified framework for string similarity search with edit-distance constraint
A unified framework for string similarity search with edit-distance constraint
复制标题
具有编辑距离约束的字符串相似性搜索的统一框架
DOI:
10.1007/s00778-016-0449-y
复制
发表时间:
2017-04
期刊:
影响因子:
--
通讯作者:
Yong Zhang
中科院分区:
文献类型:
--
作者:
Minghe Yu;Jin Wang;Guoliang Li;Yong Zhang
String similarity search is a fundamental operation in data cleaning and integration. It has two variants: threshold-based string similarity search and top-string similarity search. Existing algorithms are efficient for either the former or the latter; most of them cannot support both two variants. To address this limitation, we propose a unified framework. We first recursively partition strings into disjoint segments and build a hierarchical segment tree index () on top of the segments. Then, we utilize theto support similarity search. For threshold-based search, we identify appropriate tree nodes based on the threshold to answer the query and devise an efficient algorithm (HS-Search). For top-search, we identify promising strings with large possibility to be similar to the query, utilize these strings to estimate an upper bound which is used to prune dissimilar strings and propose an algorithm (HS-Topk). We develop effective pruning techniques to further improve the performance. To support large data sets, we extend our techniques to support the disk-based setting. Experimental results on real-world data sets show that our method achieves high performance on the two problems and outperforms state-of-the-art algorithms by 5–10 times.
登录
查看更多内容
DOI:
10.1145/2588555.2593675
发表时间:
2014-06
期刊:
Proceedings of the 2014 ACM SIGMOD International Conference on Management of Data
影响因子:
--
作者:
Dong Deng;Guoliang Li;Jianhua Feng
通讯作者:
Dong Deng;Guoliang Li;Jianhua Feng
影响因子:
2.5
作者:
Wang, Jiannan;Feng, Jianhua;Li, Guoliang
通讯作者:
Li, Guoliang
DOI:
10.1145/2457317.2457385
发表时间:
2013-03
期刊:
--
影响因子:
--
作者:
Stefan Gerdjikov;S. Mihov;Petar Mitankin;K. Schulz
通讯作者:
Stefan Gerdjikov;S. Mihov;Petar Mitankin;K. Schulz
DOI:
10.1145/2463676.2465324
发表时间:
2013-06
期刊:
--
影响因子:
--
作者:
Younghoon Kim;Kyuseok Shim
通讯作者:
Younghoon Kim;Kyuseok Shim
DOI:
--
发表时间:
2015
期刊:
--
影响因子:
--
作者:
通讯作者:
--