Grammar
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*The '''UNL-NL (Generation) Grammar''' is used to generate natural language out of UNL | *The '''UNL-NL (Generation) Grammar''' is used to generate natural language out of UNL | ||
*The '''NL-UNL (Analysis) Grammar''' is used to generate UNL out of natural language | *The '''NL-UNL (Analysis) Grammar''' is used to generate UNL out of natural language | ||
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Revision as of 20:57, 17 September 2012
In the UNL framework, a grammar is a set of rules that are used to generate UNL out of natural language, and natural language out of UNL. Along with the UNL-NL dictionaries, they constitute the basic resource for UNLization and NLization.
Types
In the UNLframework, we distinguish between transformation and disambiguation grammars:
- Transformation Grammar, or T-Grammar, is the set of T-rules, which are used to transform structures
- Disambiguation Grammar, or D-Grammar, is the set of D-rules, which are used to improve the performance of the T-rules
The syntax and behavior of T-rules and D-rules are defined in the Grammar Specs.
Direction
In the UNLframework, we distinguish between analysis and generation grammars:
- The UNL-NL (Generation) Grammar is used to generate natural language out of UNL
- The NL-UNL (Analysis) Grammar is used to generate UNL out of natural language
