tailieunhanh - Báo cáo khoa học: "Coordination"

We propose a treatment of coordination based on the concepts of functor, argument and subcategorization. Its formalization comprises two parts which are conceptually independent. On one hand, we have extended the feature structure unification to disjunctive and set values in order to check the compatibility and the satisfiability of subcategorization requirements by structured complements. On the other hand, we have considered the conjunction e$ (and) as the head of the coordinate structure, so that coordinate structures stem simply from the subcategorization specifications of et and the general schemata of a head saturation. . | Coordination as a Direct Process Augusta Mela LIPN-CNRS URA 1507 Université de Paris XIII 93 430 Villetaneuse FRANCE am@ Christophe Fouquere LIPN-CNRS URA 1507 Université de Paris XIII 93 430 Villetaneuse FRANCE cf@ Abstract We propose a treatment of coordination based on the concepts of functor argument and subcategorization. Its formalization comprises two parts which are conceptually independent. On one hand we have extended the feature structure unification to disjunctive and set values in order to check the compatibility and the satisfiability of sub categorization requirements by structured complements. On the other hand we have considered the conjunction et and as the head of the coordinate structure so that coordinate structures stem simply from the sub categorization specifications of et and the general schemata of a head saturation. Both parts have been encoded within HPSG using the same resource that is the subcategorization and its principle which we have just extended. 1 Jean danse la valse et le tango Jean dances the waltz and the tango. 2 Je sais son age et qu elle est venue ici. I know her age and that she came here. 3 Un livre intéressant et que j aurai du plaisir à lire. An interesting book and which I will enjoy to read. 4 Je demande à Pierre son vélo et à Marie sa canne à pêche. I ask Peter for his bike and Mary for her fishing rod. 5 Pierre vend un veto et donne une canne à pêche à Marie. Peter sells a bike and gives a fishing rod to Mary. We claim here that the local combinatory potential of lexical heads encoded in the subcategorization feature explains the previous linguistic facts conjuncts may be of different categories as well as of more than one constituent they just have to satisfy the subcategorization constraints. 1 Introduction Coordination has always been a centre of academic interest be it in linguistic theory or in computational linguistics. The problem is that the assumption according

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