UNL-NL Dictionaries

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The '''UNL-NL dictionaries''' are bilingual dictionaries linking [[Universal Words|UWs]] to natural language (NL) words. They can be unidirectional (UNL-to-NL or NL-to-UNL) or bidirectional (NL-to-UNL-to-NL). UNL-to-NL dictionaries are used for [[deconversion]], while NL-to-UNL are used for [[enconversion]].
 
The '''UNL-NL dictionaries''' are bilingual dictionaries linking [[Universal Words|UWs]] to natural language (NL) words. They can be unidirectional (UNL-to-NL or NL-to-UNL) or bidirectional (NL-to-UNL-to-NL). UNL-to-NL dictionaries are used for [[deconversion]], while NL-to-UNL are used for [[enconversion]].
 
== Syntax ==
 
 
In the [[UNL System]], the UNL-NL dictionaries are plain text files with a single entry per line in the following format:
 
 
[NLW]  {ID}  “UW”  (ATTR , ... )  < LG , FRE , PRI >; COMMENTS
 
 
Where:
 
 
;NLW
 
:The lexical item of the natural language. Its format should be decided by the dictionary builder. It can be:
 
::*a multiword expression: [United States of America]
 
::*a compound:  [hot-dog]
 
::*a simple word: [happiness]
 
::*a simple morpheme: [happ]
 
::*a complex structure*: [[bring] [back]]
 
::*a non-motivated linguistic entity: [g]
 
<nowiki>*</nowiki> complex structures are used for infixation, as in “Bring him back”
 
 
;ID
 
:The unique identifier (primary-key) of the entry.
 
 
;UW
 
:The Universal Word of UNL. This field can be empty if a word does not need a UW.
 
 
;ATTR
 
:The list of features of the NLW. It can be:
 
::*a list of simple features: (NOU, MCL, SNG)
 
::*a list of attribute-value pairs: (pos=NOU, gen=MCL, num=SNG)
 
::*a list of attribute and transformation rules: (plural:=”oo”:”ee”)
 
Attributes should be separated by “,”.
 
 
;FLG
 
:The two-character language code according to ISO 639-1.
 
 
;FRE
 
:The frequency of NLW in natural texts. Used for natural language analysis (NL-UNL). It can range from 0 (less frequent) to 255 (most frequent).
 
 
;PRI
 
:The priority of the NLW. Used for natural language generation (UNL-NL). It can range from 0 to 255.
 
 
;COMMENT
 
:Any comment necessary to clarify the mapping between NL and UNL entries. It should end with the return code.
 

Latest revision as of 21:24, 17 April 2009

The UNL-NL dictionaries are bilingual dictionaries linking UWs to natural language (NL) words. They can be unidirectional (UNL-to-NL or NL-to-UNL) or bidirectional (NL-to-UNL-to-NL). UNL-to-NL dictionaries are used for deconversion, while NL-to-UNL are used for enconversion.

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