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20192026
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cs.FL2026

Construction of a DFA for Computing Grundy Numbers in the Successful Derivation Games on Right-Linear Grammars

Yoshiaki Takata, Yusuke Inoue, Hiroyuki Seki

Inoue et al. have introduced the successful derivation game (SDG) on context-free grammars (CFGs), which is a generalization of classic heap-based games including subtraction games…

cs.FL2024

A Subclass of Mu-Calculus with the Freeze Quantifier Equivalent to Buchi Register Automata

Yoshiaki Takata, Akira Onishi, Ryoma Senda +1

Register automaton (RA) is an extension of finite automaton for dealing with data values in an infinite domain. In the previous work, we proposed disjunctive mu-calcul…

cs.FL2022

Active Learning for Deterministic Bottom-up Nominal Tree Automata

R. Nakanishi, Y. Takata, H. Seki

Nominal set plays a central role in a group-theoretic extension of finite automata to those over an infinite set of data values. Moerman et al. proposed an active learning algorith…

cs.FL2022

Reduction of Register Pushdown Systems with Freshness Property to Pushdown Systems in LTL Model Checking

Yoshiaki Takata, Ryoma Senda, Hiroyuki Seki

Pushdown systems (PDS) are known as an abstract model of recursive programs, and model checking methods for PDS have been studied. Register PDS (RPDS) are PDS augmented by register…

cs.FL2019

Complexity Results on Register Pushdown Automata

Ryoma Senda, Yoshiaki Takata, Hiroyuki Seki

Register pushdown automata (RPDA) is an extension of classical pushdown automata to handle data values in a restricted way. RPDA attracts attention as a model of a query language f…