Some Issues on Capturing the Meaning of Negated Statements

Abstract

Negation is present in all human languages, and it is used to reverse the polarity of parts of a statement. It is a complex phenomenon that interacts with many other aspects of language. Besides the direct meaning, negated statements often carry positive implicit meaning. Negation can be interpreted in terms of its scope and focus. This chapter explores the importance of both scope and focus to capture the meaning of negated statements. Some issues that must be taken into account for representing negation are outlined, the forms in which negation occurs are depicted, and heuristics to detect scope and focus of negation are proposed and evaluated.