We develop its substitution, called a swapping lemma for regular languages, to demonstrate the non-regularity of a target language with advice. For context-free languages, we also present a similar form of swapping lemma, which serves as a technical tool to show that certain languages are not ...
We investigate regular realizability (RR) problems, which are the problems ofverifying whether intersection of a regular language -- the input of theproblem -- and fixed language called filter is non-empty. In this paper wefocus on the case of context-free filters. Algorithmic complexity of ...
Machine learning of grammars finds many applications in syntactic pattern recognition, computational biology, natural language acquisition, etc. In this pa... M Mernik,M Crepinsek,G Gerlic - 《Rodosz Ro》 被引量: 14发表: 2003年 Context-free grammars with regular conditions Context-free grammars...
(unrestrictedgrammar)/短语结构文法 1型文法:上下文有关文法(context-sensitivegrammar,CSG) 2型文法:上下文无关文法(context-freegrammar,CFG) 3型文法:正则文法(regulargrammar,RG)第十题解析: 可能如下图所示第十三题解析:注意区分句子和句型,句型对句子具有概括性。
JavaScript library for working with automata and grammars for regular and context-free languages - izuzak/noam
The language intersection problem for non-recursive context-free grammars We prove that, given as input two context-free grammars, deciding non-emptiness of intersection of the two generated languages is PSPACE-complete if at lea... M Nederhof,G Satta - 《Information & Computation》 被引量: ...
Free Scheduler/Calendar for MVC Project Freeze top row in OpenXML from c# variable to javascript variable Ftp error 425: Can't Open Data Connection FTP exception : A connection attempt failed because the connected party did not properly respond after a period of time, or established connection ...
Our applications here include a proof of a theorem due to Salomaa, asserting the existence of a context-free language with infinite index, and a proof ... AJ Kfoury,AP Stolboushkin - 《Information & Computation》 被引量: 2发表: 1997年 Good-for-games ω-Pushdown Automata Thus, we have...
Feel free to close the browser and set --mode continue to continue from your last annotation. Once running the script, you have to provide the annotator name and your annotation results will be saved to Predictions/human_eval/annotation_from_<name>.jsonl. See the running screenshot here. ...
A regular language recognizer generater like Ragel, enhanced with features to approximate context-free grammars and substring grammars - chaitin/yanshi