String Similarity Search/Join

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.

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Please Cite

Siragusa, E., Weese D., & Reinert, K. (2013). Scalable String Similarity Search/Join with Approximate Seeds and Multiple Backtracking. EDBT/ICDT ’13, March 18 – 22 2013, Genoa, Italy

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