Název: Lexicalized Syntactic Analysis by Restarting Automata
Autoři: Mráz, F. ; Otto, F. ; Pardubská, D. ; Plátek, Martin
Typ dokumentu: Příspěvky z konference
Konference/Akce: Prague Stringology Conference 2019, Prague (CZ), 20190826
Rok: 2019
Jazyk: eng
Abstrakt: 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.
Klíčová slova: h-lexicalization; lexical disambiguation; Restarting automaton
Číslo projektu: GA19-05704S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Proceedings of the Prague Stringology Conference 2019, ISBN 978-80-01-06618-8

Instituce: Ústav informatiky AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na externích webových stránkách.
Externí umístění souboru: http://www.stringology.org/papers/PSC2019.pdf
Původní záznam: http://hdl.handle.net/11104/0303097

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-408971


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