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Regular Matching and Inclusion on Compressed Tree Patterns with Context Variables

Iovka Boneva 1 Joachim Niehren 1 Momar Sakho 1
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CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189, Inria Lille - Nord Europe
Abstract : We study the complexity of regular matching and inclusion for compressed tree patterns extended by context variables. The addition of context variables to tree patterns permits us to properly capture compressed string patterns but also compressed patterns for unranked trees with tree and hedge variables. Regular inclusion for the latter is relevant to certain query answering on Xml streams with references.
Keywords : trees tree languages and tree automata Complex event processing data streams automata computational complexity patterns queries
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https://hal.inria.fr/hal-01811835
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Submitted on : Thursday, June 27, 2019 - 5:50:04 PM
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  • HAL Id : hal-01811835, version 4

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Iovka Boneva, Joachim Niehren, Momar Sakho. Regular Matching and Inclusion on Compressed Tree Patterns with Context Variables. LATA 2019 - 13th International Conference on Language and Automata Theory and Applications, Mar 2019, Saint Petersburg, Russia. ⟨hal-01811835v4⟩

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