Lexicalized Syntactic Analysis by Restarting Automata

0517845 - ÚI 2020 RIV CZ eng C - Conference Paper (international conference)
Mráz, F. - Otto, F. - Pardubská, D. - Plátek, Martin
Lexicalized Syntactic Analysis by Restarting Automata.
Proceedings of the Prague Stringology Conference 2019. Prague: Czech Technical University in Prague, 2019 - (Holub, J.; Žďárek, J.), s. 69-83. ISBN 978-80-01-06618-8.
[Prague Stringology Conference 2019. Prague (CZ), 26.08.2019-28.08.2019]
R&D Projects: GA ČR(CZ) GA19-05704S
Institutional support: RVO:67985807
Keywords : Restarting automaton * h-lexicalization * lexical disambiguation
OECD category: Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
http://www.stringology.org/papers/PSC2019.pdf

We study h-lexicalized two-way restarting automata that can rewrite at most i times per cycle for some i ≥ 1 (hRLWW(i)-automata). This model is considered useful for the study of lexical (syntactic) disambiguation, which is a concept from linguistics. It is based on certain reduction patterns. We study lexical disambiguation through the formal notion of h-lexicalized syntactic analysis (hLSA). The hLSA is composed of a basic language and the corresponding h-proper language, which is obtained from the basic language by mapping all basic symbols to input symbols. We stress the sensitivity of hLSA by hRLWW(i)-automata to the size of their windows, the number of possible rewrites per cycle, and the degree of (non-)monotonicity. We introduce the concepts of contextually transparent languages (CTL) and contextually transparent lexicalized analyses based on very special reduction patterns, and we present two-dimensional hierarchies of their subclasses based on the size of windows and on the degree of synchronization. The bottoms of these hierarchies correspond to the context-free languages. CTL creates a proper subclass of context-sensitive languages with syntactically natural properties.
Permanent Link: http://hdl.handle.net/11104/0303097