GETA's MT methodology and its current development towards personal networking communication and spee

Ariane-G5 is an integrated environment initially designed to facilitate the development of multilingual MT systems for revisors (MT-R), where output quality is obtained by using the heuristic programming facilities of its 5 rule-based languages to specialize the lingware components to the sublanguage at hand. It can support many MT architectures and linguistic methodologies and accepts whole paragraphs or pages as units of translation rather than separate sentences. For MT-R, B.Vauquois' mutltilevel transfer approach has given excellent results on a large number of MT-R mockups and prototypes, as well as two large scale operational systems. As both the computer tools and the linguistic methodology are not embodiments of a particular theory, they are quite easy to adapt to new problems. In the last few years, they have actually been revised and further developed in the framework of new research on high quality MT for monolingual authors (MT-A), relying on a disambiguation dialogue with the author (DBMT), following an all-paths analysis. The evolution of Ariane-G5/LIDIA and associated linguistic methodologies is now motivated by two projects of different aims and requirements. The UNL project of personal multilingual high-quality communication over the Internet requires the construction of a large lexical database from which coherent dictionaries for MT and for interactive disambiguation will be generated. For the C-STAR Speech Translation (ST) project, it becomes necessary to start from phonetic lattices output by a speech recognizer, and to transmit some linguistically useful memory from one dialogue turn to the next.