TAILIEUCHUNG - Báo cáo khoa học: "Morphology-Syntax Interface for Turkish LFG"

¨ Ozlem Cetino˘ lu g Faculty of Engineering and Natural Sciences Sabancı University 34956, Istanbul, Turkey ozlemc@ Kemal Oflazer Faculty of Engineering and Natural Sciences Sabancı University 34956, Istanbul, Turkey oflazer@ Abstract This paper investigates the use of sublexical units as a solution to handling the complex morphology with productive derivational processes, in the development of a lexical functional grammar for Turkish. Such sublexical units make it possible to expose the internal structure of words with multiple derivations to the grammar rules in a uniform manner. This in turn leads to more succinct and manageable rules. Further, the semantics of the derivations can also. | Morphology-Syntax Interface for Turkish LFG Ozlem Cetinoglu Faculty of Engineering and Natural Sciences Sabanci University 34956 Istanbul Turkey ozlemc@ Kemal Oflazer Faculty of Engineering and Natural Sciences Sabanci University 34956 Istanbul Turkey oflazer@ Abstract This paper investigates the use of sublexi-cal units as a solution to handling the complex morphology with productive derivational processes in the development of a lexical functional grammar for Turkish. Such sublexical units make it possible to expose the internal structure of words with multiple derivations to the grammar rules in a uniform manner. This in turn leads to more succinct and manageable rules. Further the semantics of the derivations can also be systematically reflected in a compositional way by constructing PRED values on the fly. We illustrate how we use sublexical units for handling simple productive derivational morphology and more interesting cases such as causativization etc. which change verb valency. Our priority is to handle several linguistic phenomena in order to observe the effects of our approach on both the c-structure and the f-structure representation and grammar writing leaving the coverage and evaluation issues aside for the moment. 1 Introduction This paper presents highlights of a large scale lexical functional grammar for Turkish that is being developed in the context of the ParGram project1 In order to incorporate in a manageable way the complex morphology and the syntactic relations mediated by morphological units and to handle lexical representations of very productive derivations we have opted to develop the grammar using sublexical units called inflectional groups. Inflectional groups IGs hereafter represent the inflectional properties of segments of a complex 1http istl groups nltt pargram word structure separated by derivational boundaries. An IG is typically larger than a morpheme but smaller than a word except

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