String Similarity Search/Join

Abstract

Abstract:

We present in this paper scalable algorithms for optimal string similarity search and join. Our methods are variations of those applied in Masai, our recently published tool for mapping high-throughput DNA sequencing data with unpreceded speed and accuracy. The key features of our approach are filtration with approximate seeds and methods for multiple backtracking. Approximate seeds, compared to exact seeds, increase filtration specificity while preserving sensitivity. Multiple backtracking amortizes the cost of searching a large set of seeds. Combined together, these two methods significantly speed up string similarity search and join operations.

Links

• Download binaries
• View the source code and README on GitHub

Please Cite

• E. Siragusa, D. Weese, K. Reinert, “Scalable string similarity search/join with approximate seeds and multiple backtracking”, 2013.
  cite this publication

  @inproceedings{fu_mi_publications1225,
   abstract = {We present in this paper scalable algorithms for optimal string similarity search and join. Our methods are variations of those applied in Masai [15], our recently published tool for mapping high-throughput DNA sequencing data with unpreceded speed and accuracy. The key features of our approach are filtration with approximate seeds and methods for multiple backtracking. Approximate seeds, compared to exact seeds, increase filtration specificity while preserving sensitivity. Multiple backtracking amortizes the cost of searching a large set of seeds. Combined together, these two methods significantly speed up string similarity search and join operations. Our tool is implemented in C++ and OpenMP using the SeqAn library. The source code is distributed under the BSD license and can be freely downloaded from http://www.seqan.de/projects/edbt2013.},
   address = {New York, NY, USA},
   author = {E. Siragusa and D. Weese and K. Reinert},
   booktitle = {Proceedings of the Joint EDBT/ICDT 2013 Workshops},
   keywords = {approximate seeds, backtracking, banded Myers bit-vector, banded dynamic programming, filtration, radix tree, suffix tree},
   pages = {370--374},
   publisher = {ACM},
   series = {EDBT '13},
   title = {Scalable string similarity search/join with approximate seeds and multiple backtracking},
   url = {http://publications.imp.fu-berlin.de/1225/},
   year = {2013}
  }

Contact

For questions, comments, or suggestions please contact:

Enrico Siragusa enrico.siragusa@fu-berlin.de