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arXiv · 2209.10312

Schema-Based Automata Determinization

Joachim Niehren·Momar Sakho·Antonio Al Serhali
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Abstract

We propose an algorithm for schema-based determinization of finite automata on words and of step-wise hedge automata on nested words. The idea is to integrate schema-based cleaning directly into automata determinization. We prove the correctness of our new algorithm and show that it is alway smore efficient than standard determinization followed by schema-based cleaning. Our implementation permits to obtain a small deterministic automaton for an example of an XPath query, where standard determinization yields a huge stepwise hedge automaton for which schema-based cleaning runs out of memory.

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Joachim Niehren, Momar Sakho, Antonio Al Serhali. 2022-09-21. Schema-Based Automata Determinization. https://doi.org/10.4204/eptcs.370.4

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