We also prove that there are unary languages for which deterministic pushdown automata cannot be exponentially more succinct than finite automata. In order to state this result, we investigate the conversion of deterministic pushdown automata into context-free grammars. We prove that in the unary ...
The non-singular deterministic pushdown automata were first defined by Valiant as an example of a class of machines with a decidable equivalence problem [3]. No algorithm currently exist for deciding whether or not a deterministic pushdown automation is non-singular, so the applicability of Valiant...
Context free language Deterministic pushdown automaton Deterministic context-free grammar References[edit source|editbeta] ^Hopcroft, John;Jeffrey Ullman(1979).Introduction to automata theory, languages, and computation. Addison-Wesley. p. 233. ^Hopcroft, John;Rajeev Motwani&Jeffrey Ullman(2001).Introducti...
restricted types of cooperating distributed systems (CD-systems) of stateless deterministic restarting automata with window size one (so-called stl-det-R(1)-automata) that work in mode ‘=1’ and that use an external counter or pushdown store to determine the successor components within ...
A systematic approach to the construction of subtree pattern matchers by deterministic pushdown automata, which read subject trees in prefix notation, is presented. The method is analogous to the construction of string pattern matchers: for a given pattern, a nondeterministic pushdown automaton is ...
Difference between Pushdown Automata and Finite Automata What are different types of finite automata? Efficient Construction of Finite Automata What are the regular expressions to finite automata? Explain non-deterministic push down automata in TOC? What is the conversion of a regular expression to fini...
We study the size-cost of boolean operations on constant height deterministic pushdown automata. We prove an asymptotically optimal exponential blow-up for union and intersection, as well as polynomial blow-up for complement. 关键词: pushdown automata boolean operations on languages de- scriptional ...
Deterministic pushdown automata; Stateless pushdown automata; Real-time pushdown automata; Infinite hierarchy; 机译:确定性下推自动机;无状态下推自动机;实时下推自动机;无限层次; 入库时间 2022-08-18 10:36:59 相似文献 外文文献 中文文献 专利 1. A NOTE ON LIMITED PUSHDOWN ALPHABETS IN STATELESS ...
The class of languages definable by Deterministic Pushdown Automata (i.e. DCFL’s) is closed under complementation. Deterministic PDA’s Closure properties of DCFL’s Complementing DPDA’s Problem with complementing a DPDA Try flipping final and non-final states. ...
Higher-Order Pushdown Automata (HOPDA) are abstract machines equipped with a nested stacks of stacks ... of stacks of stacks. Collapsible pushdown automata... CH Broadbent,CHL Ong - 《University of Oxford》 被引量: 9发表: 2011年 Asynchronous PC Systems of Pushdown Automata We introduce asynchr...