Integrating Semantics And Flexible Syntax By Exploiting Isomorphism Between Gramnatical And Senantical Relations

This work concerns i n t e g r a t i o n between syn tax and semant ics . S y n t a c t i c and semant ic a c t i v i t i e s r e l y on separa te bod ies o f knowledges. I n t e g r a t i o n i s ob ta i ned by e x p l o i t i n g the isomorphism between grammat ica l r e l a t i o n s (among immediate c o n s t i t u ~ e r r s ) and conceptua l r e l a t i o n s , thanks t o a l i m i t e d s e t o f fo rmal mapping r u l e s . S y n t a c t i c a n a l y s i s does not c o n s t r u c t a l l t he e x p l i c i t parse t r e e s but j u s t a graph t h a t r ep resen ts a l l the p l a u s i b l e grammat ica l r e l a t i o n s among immediate c o n s t i t u e n t s . Such graph g i ves the semant ic i n t e r p r e t e r , based on Conceptual Graphs fo rma l i sm, the d i s c r i m i n a t i v e power r e q u i r e d to e s t a b l i s h conceptua l r e l a t i o n s .