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Published in:
2011 | OriginalPaper | Chapter
Smaller Representation of Finite State Automata
Authors : Jan Daciuk, Dawid Weiss
Published in: Implementation and Application of Automata
Publisher: Springer Berlin Heidelberg
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This paper is a follow-up to Jan Daciuk’s experiments on space-efficient finite state automata representation that can be used directly for traversals in main memory [4]. We investigate several techniques of reducing the memory footprint of minimal automata, mainly exploiting the fact that transition labels and transition pointer offset values are not evenly distributed and so are suitable for compression. We achieve a size gain of around 20–30% compared to the original representation given in [4]. This result is comparable to the state-of-the-art dictionary compression techniques like the LZ-trie [10] method, but remains memory and CPU efficient during construction.