Examples of 'context-free grammars' in a sentence
Meaning of "context-free grammars"
Context-free grammars: A type of formal grammar in the field of linguistics that describes the syntax of a language without reference to its semantics or context
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- plural of context-free grammar
How to use "context-free grammars" in a sentence
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context-free grammars
Unambiguous context-free grammars can be nondeterministic.
It can express the entire range of context-free grammars.
Context-free grammars specify programming language syntax.
We can represent grammars as finite state automata or context-free grammars.
Context-free grammars do not take into account any additional information.
Non-deterministic pushdown automata are another formalism equivalent to context-free grammars.
Can context-free grammars be used to do anything other than parsing a programming language?
The following are some decidable problems about context-free grammars.
Context-free grammars are generally sufficient for expressing the syntax of a programming language.
Thus ordered choice is not commutative, unlike unordered choice as in context-free grammars.
Context-free grammars are represented as a set of rules inspired from attempts to model natural languages.
Those acronyms are all subsets of context-free languages or context-free grammars.
The newer method of stochastic context-free grammars suffers from the same problem.
There are some cool things that we can do with context-free grammars.
Languages generated by context-free grammars are known as context-free languages CFL.
See also
So in lecture, we spent a lot of time learning about context-free grammars and languages.
PCFGs models extend context-free grammars the same way as hidden Markov models extend regular grammars.
In fact, there are a large number of applications for language formalisms or context-free grammars.
Newer structure prediction techniques such as stochastic context-free grammars are also unable to consider pseudoknots.
They repeat in a structure that 's actually surprisingly similar to regular expressions or context-free grammars.
During lecture this week, we learned about context-free grammars and languages and about parsing them.
Context Free is a program that produces images based on context-free grammars.
This is not possible for context-free grammars hence not for general PDA.
Context-free grammars and languages.
Chomsky initially hoped to overcome the limitations of context-free grammars by adding transformation rules.
SCFGs extend context-free grammars in the same way that hidden Markov models extend regular grammars.
II grammars are an even more restricted class of context-free grammars than LR grammars.
PCFGs extend context-free grammars similar to how hidden Markov models extend regular grammars.
Also, most arithmetic expressions are generated by context-free grammars.
Extended context-free grammars describe exactly the context-free languages.
However, many problems are undecidable even for context-free grammars.
Different context-free grammars can generate the same context-free language.
A common notation used for writing context-free grammars is Backus-Naur form.
This restriction is non-trivial ; not all languages can be generated by context-free grammars.
The language equality question ( do two given context-free grammars generate the same language? ) is undecidable.
At least, there are tools implementing some semi-decision procedure for detecting ambiguity of context-free grammars.
In computer science, a popular notation for context-free grammars is Backus-Naur form, or BNF.
An O ( n3 ) algorithm for re-estimating production probabilities in probabilistic context-free grammars.
CFGAnalyzer - tool for analyzing context-free grammars with respect to language universality, ambiguity, and similar properties.
Every regular grammar is context-free, but not all context-free grammars are regular.
These form subsets of deterministic context-free grammars ( DCFGs ) and deterministic context-free languages ( DCFLs ), respectively.
Sub-models may, for example, be n-gram language models or context-free grammars.
Two important types are context-free grammars ( Type 2 ) and regular grammars Type 3.
In computer science, a popular notation for context-free grammars is Backus - Naur form, or BNF.
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Examples of using Grammars
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To models grammars of dialects of coding genes eingorin m
It is an example of the larger class of affix grammars
Grammars with this property are called ambiguous
Examples of using Context-free
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Not all context-free languages are deterministic
The program of these processors is context-free
Unambiguous context-free grammars can be nondeterministic
