TAILIEUCHUNG - Báo cáo khoa học: "A Compositional Semantics for Focusing Subjuncts"

A compositional semantics for focusing subjuncts-words such as only, even, and also--is developed from Rooth's theory of association with focus. By adapting the theory so that it can be expressed in terms of a frame-based semantic formalism, a semantics that is more computationally practical is arrived at. This semantics captures pragmatic subtleties by incorporating a two-part representation, and recognizes the contribution of intonation to meaning. | A Compositional Semantics for Focusing Subjuncts Daniel Lyons MCC 3500 West Balcones Center Drive Austin TX 78759 USA lyons@ Abstract A compositional semantics for focusing subjuncts words such as only even and also is developed from Root h s theory of association with focus. By adapting the theory so that it can be expressed in terms of a frame-based semantic formalism a semantics that is more computationally practical is arrived at. This semantics captures pragmatic subtleties by incorporating a two-part representation and recognizes the contribution of intonation to meaning. 1 Introduction Focusing subjuncts such as only even and also are a subclass of the sentence-element class of ad-verbials Quirk et al. 1985 . They draw attention to a part of a sentence the focus of the focusing subjunct which often represents new information. Focusing subjuncts are usually realized by adverbs but occasionally by prepositional phrases. Focusing subjuncts emphasize approximate or restrict their foci. They modify the force or truth value of a sentence especially with respect to its applicability to the focused item Quirk et al. 1985 . The problem with focusing subjuncts There are several reasons why developing any semantics for focusing subjuncts is a difficult task. First focusing subjuncts are syntactically promiscuous . They can adjoin to any maximal projection. They can occur at almost any position in a sentence. Second focusing subjuncts are also semantically promiscuous . They may focus draw attention to almost any constituent. They can precede or follow the item that they focus and need not be adjacent to this item. The focus need only be contained somewhere within the syntactic sister of the focusing subjunct. Because of this behavior it is difficult to determine the intended syntactic argument adjunct and focus of a focusing subjunct. Sentences The work described in this paper was done at the University of Toronto. Graeme Hirst Department of Computer .

• Báo cáo khoa học
• A Compositional Semantics
• Focusing Subjuncts
• Daniel Lyons
• scientific reports
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