Design/methodology/approach - Formal grammars (FG) were proposed as the tool to deal with human and artificial languages. Fuzzy formal grammars (FFGs) are the extension of the formalism in the Theory of Fuzzy Logic and are ambiguous grammars. Here, the ambiguity of the ordered set of ...
we can ask for a GLR parser. The GLR parser is slightly less efficient because it needs to maintain all possible parses in parallel, but it is still linear complexity for most unambiguous grammars. (GLR parsers can parse even ambiguous grammars in O(N3) but the bison implementa...
There have been many arguments that the underlying structure of natural languages is beyond the descriptive capacity of context-free languages. A well-known example is tree adjoining grammars; less common are spine grammars, linear indexed grammars, head grammars, and combinatory categorial grammars. ...
A. Salomaa Formal Languages Academic Press, New York (1975) Google Scholar Cited by (3) Relationships between bounded languages, counter machines, finite-index grammars, ambiguity, and commutative regularity 2021, Theoretical Computer Science Show abstract On inherently ambiguous E0L languages 1983, The...
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detectioninContextFreeGrammars.Inthisstudy,wewillobserveusefulnessofAmbiguityDetectionMethod(ADM)inCFGwithrespecttoambiguitydetection,assuranceofterminationoftheprocessandaccuracy.Keywords:Ambiguity,CFG,detection,reviewINTRODUCTIONCFGisoneoftheclasseswhichareusedtodefineruleofgrammar.CFGisprimarilyusedtoconstructcompileror...
Probabilistic context free grammars (PCFG) have been the core of the probabilistic reasoning based parsers for several years especially in the context of t... S Patnaikuni,S Gengaje - IEEE 被引量: 0发表: 2019年 加载更多研究点推荐 prepositional groups Automatic Processing ...
This chapter discusses ambiguity types of formal grammars. All known parsing techniques used in compilers of programming languages work only, or work more efficiently, when unambiguous CF-grammars are concerned. The execution meaning of a program is defined inductively from its instructions and ...
Ambiguous Context Free Grammars (CFGs) are problematic for programming languages, as they allow inputs to be parsed in more than one way. In this paper, we introduce a simple non-deterministic search-based approach to ambiguity detection which non-exhaustively explores a grammar in breadth for ...
In contrast, semantic interpretations of sentences of natural languages, for example, English, have, in transformational grammars, taken place on translations of those sentences into some language similar to the languages of formal logic. It is instructive to attempt semantic interpretation of "surface...