例句與造句

1. Is there an algorithm for determining whether or not a context free grammar is inherently ambiguous?
2. The phrase structure rules of context free grammar, for instance, were generating sentence structure top down.
3. A context free grammar can be defined by its terminals, variables, start variable and substitution rules.
4. The canonical example of a context free grammar is parenthesis matching, which is representative of the general case.
5. One example, " SpamMimic ", uses a context free grammar to model the structure of a typical spam email message.
6. It's difficult to find context free grammars in a sentence. 用context free grammars造句挺難的
7. A compositional vector grammar can be thought of as probabilistic context free grammar ( PCFG ) implemented by a recursive neural network.
8. Is it possible to verify " multiple lines of text " confirms to a defined set of simple context free grammar rules using regex ( perl / java )?
9. His grammar includes early use of Boolean logic, of the null operator, and of context free grammars, and includes a precursor of the Backus Naur form ( used in the description programming languages ).
10. Whereas traditional Unix tools ( such as awk, sed, grep, etc . ) process text one line at a time, and use regular expressions to search or transform text, the pp tool processes text one character at a time and can use context free grammars to transform ( or compile ) the text.
11. There are two other possibilities that come to mind, though : Computer A may be a finite state machine and the task may be to recognize a context-free grammar, so Computer A would not be able to perform the task ( because it is not a universal computer ) . My guess ( without proof ) is that Computer A would not be able to build, e . g ., a pushdown automata that could recognize the context free grammar.