Ambiguity and Coherence [pdf]

Lascarides, A., A. Copestake, and E. J. Briscoe, [1996] Ambiguity and Coherence, Journal of Semantics, 13(1), pp41-65, Oxford University Press.

Several recent theories of linguistic representation treat the lexicon as a highly structured object, incorporating fairly detailed semantic information, and allowing multiple aspects of meaning to be represented in a single entry (e.g. Pustejovsky, 1991; Copestake, 1992; Copestake and Briscoe, 1995). One consequence of these approaches is that word senses cannot be thought of as discrete units which are in one-to-one correspondence with lexical entries. This has many advantages in allowing an account of systematic polysemy, but leaves the problem of accounting for effects such as zeugma and the absence of crossed readings, which have traditionally been explained in terms of multiple lexical entries, but which can also arise in examples where other criteria demand that a single entry be involved. Copestake and Briscoe (1995) claimed that these cases could be explained by discourse coherence, but did not describe how this might work. We remedy this here, by formalising a general pragmatic principle which encapsulates discourse effects on word meaning. We demonstrate how it contributes to the creation of zeugma and the non-availability of crossed readings.

author = {Alex Lascarides and Ann Copestake and Ted Briscoe},
year = {1996},
title = {Ambiguity and Coherence},
journal = {Journal of Semantics},
volume = {13},
number = {1},
pages = {41--65}