Fast Exact Pattern Matching in a Bitstream and 256-ary Strings
Abstract: |
A few known techniques of exact pattern matching, such as 2-byte read, fast loop, and sliding search windows, are improved and applied to two related sub-problems. At first, we present a new family of pattern matching algorithms, performing efficiently over 256-ary alphabets. Taking them as an underlying solution, we build the algorithms for searching a string in a bitstream. It turns out that in both cases our algorithms outperform all the other tested methods for all tested pattern lengths. |
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