Designing the Lexical Rules for the Parsing of ASD-STE100 Function Words in ARTEMIS from a Role and Reference Grammar Perspective

Abstract

ARTEtuIS (Alttomaticalb) Rqresenting Tert Meaning uia an Interlinguabased system), is a natural language processing deuice, uhose xrltimate aim is to be able to understand natural tanguage fragments and a?Tiue at their swtactic and semantic rqresentation. ringuisticalb, tbis pótrser Ls found.ed. on tuo solid linguistic theories: tbe Lexical constntctional Model and Role and Reference Grammar. Althougb the ricb sernantic representatioru and tbe multilingual cbaracter of Role and Reference Grammar make ít stlitablefor natural language understanding tashs, some cbanges to the model haue proued necessary in order to adapt it to tbefunctioníng of tbe ARTEtuils parser This paper uilt deal witb one of the major modifications tbat Role and Refermce Grammar bad to tmdergo in tbis l)rocess of adaptation, namelit, the substitution of tbe operator projection for feature-based structures, and how tbk will inJluence the description of function words in ARTEIIIS, since tbqt are strongly responsible for tbe encoding of tbe grammatical informa.tion which in Role and Reference Grammar is lnchded. in tbe operators. currently, ARTET,IIS ís being implemented.for the controlled natural language ASD-srEloo, the Aerospace and Defence Industries Association of Europe simptified rbchnical EnglLsb, uhich is an interytational Eecification for the preparation of tecbnical documentation in a controlled language. Tbis controlled. language is used in the belief tbat üs simplified. nature makes it a good corpL$ to cany out a preliminary testing of tbe adeqtacy of tbe parser. In tbis line, tbe aim of tbis work ís to create a catalogue offunction word in ARTEtoIIS for ASD-srE11o, and to design the lexical rules necessary to parse tbe simple sentence and tbe referential phrase in this controlled language.