ambiguous grammars造句

• This is essential for ambiguous grammars such as used for human languages.
• See ambiguous grammar # Recognizing ambiguous grammars.
• See ambiguous grammar # Recognizing ambiguous grammars.
• LR parsing is not a useful technique for human languages with ambiguous grammars that depend on the interplay of words.
• A recognition algorithm that accommodates ambiguous grammars with direct left-recursive rules is described by Frost and Hafiz in 2006.
• :: : The solution where there is an ambiguous grammar problem is to rewrite the text to remove the ambiguity.
• Ambiguous grammar may result in ambiguous parsing if applied on homographs since the same word sequence can have more than one interpretation.
• Note that there may be multiple distinct ways to parse a string while finishing at the same index : this indicates an ambiguous grammar.
• The LL ( " k " ) grammars therefore exclude all ambiguous grammars, as well as all grammars that contain left recursion.
• However, there are certain languages that can only be generated by ambiguous grammars; such languages are called " inherently ambiguous languages ".
• Earley parsers apply the techniques and notation of LR parsers to the task of generating all possible parses for ambiguous grammars such as for human languages.
• If a string in the language of the grammar has more than one parsing tree, then the grammar is said to be an " ambiguous grammar ".
• That algorithm was extended to a complete parsing algorithm to accommodate indirect as well as direct left-recursion in polynomial time, and to generate compact polynomial-size representations of the potentially exponential number of parse trees for highly ambiguous grammars by Frost, Hafiz and Callaghan in 2007.