科研之友
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摘要
We present a simple q-gram based semi-index, which allows to look for a pattern typically only in a small fraction of text blocks. Several space-time tradeoffs are presented. Experiments on Pizza & Chili datasets show that our solution is up to three orders of magnitude faster than the Claude et al. (Journal of Discrete Algorithms 2012; 11: 37) semi-index at a comparable space usage. Moreover, the construction of our data structure is fast and easily parallelizable.
- 出版日期2017-6
