Online research in philosophy

This paper investigates reference to clausally introduced entities and proposes an explanation for why these are more readily available to immediate subsequent reference with a demonstrative pronoun than with the personal pronoun,it. New evidence is provided supporting proposals that such entities are typically activated, but not brought into focus, upon their introduction into a discourse. The study also provides further insight into the role of information structure, lexical semantics, presuppositional contexts, and syntactic structure in bringing an entity into focus of attention.

While information structure has traditionally been viewed as a singlepartition of information within an utterance, there are opposing viewsthat identify multiple such partitions in an utterance. The existenceof alternative proposals raises questions about the notion ofinformation structure and also its relation to discoursestructure. Exploring various linguistic aspects, this paper supports thetraditional view by arguing that there is no information structure partition within a subordinate clause.

Topic of this paper is the way in which the structure of events features in discourse. We focus on the structure as introduced by verbs that express some sense of progress. First it is shown by means of examples that this structure is anaphorically available in discourse. Then we go on to discuss the different ways in which the same event may be structured within one discourse situation. We give formal representations of the crucial examples in many-sorted dynamic logic.

Why do speakers of all languages use different grammatical structures under different communicative circumstances to express the same idea? In this comprehensive study, Professor Lambrecht explores the relationship between the structure of sentences and the linguistic and extra-linguistic contexts in which they are used. His analysis is based on the observation that the structure of a sentence reflects a speaker's assumptions about the hearer's state of knowledge and consciousness at the time of the utterance. This relationship between speaker assumptions and formal sentence structure is governed by rules and conventions of grammar, in a component called 'information structure'. Four independent but interrelated categories are analysed: presupposition and assertion, identifiability and activation, topic, and focus.

The notion of kontrast, or the ability of certain linguistic expressions to generate a set of alternatives, originally proposed by Vallduví and Vilkuna (1998) as a clause-level concept, is re-analyzed here as connecting the level of information packaging in the clause and the level of discourse structure in the following way: kontrast is encoded at the clausal level but has repercussions for discourse structure. This claim is supported by evidence from the distribution properties of three colloquial Russian particles -to, e, andved' which are analyzed as unambiguous markers of kontrast. Both the placement of these particles at the clausal level and their role in discourse are viewed as consequences of the type of the kontrast set and the cognitive status of information marked by each particle.

Some recent studies in computational linguistics have aimed to take advantage of various cues presented by punctuation marks. This short survey is intended to summarise these research efforts and additionally, to outline a current perspective for the usage and functions of punctuation marks. We conclude by presenting an information-based framework for punctuation, influenced by treatments of several related phenomena in computational linguistics.

We o er a preliminary account of the information-based aspects of punctuation marks. We give our initial treatment within the Discourse Representation Theory and its segmented version. We hypothesize that this work will be useful in classifying the informational contributions of punctuation marks and bringing them to bear on the semantic characterization of written discourse.

In this article we argue that discourse structure constrains the set ofpossible constituents in a discourse that can provide the relevantcontext for structuring information in a target sentence, whileinformation structure critically constrains discourse structureambiguity. For the speaker, the discourse structure provides a set of possible contexts for continuation while information structure assignment is independent of discourse structure. For the hearer, the information structure of a sentence together with discourse structure instructs dynamic semantics how rhematic information should be used to update the meaning representation of the discourse (Polanyi and van den Berg, 1996).

Punctuation has so far attracted attention within the linguistics community mostly from a syntactic perspective. In this paper, we give a preliminary account of the information-based aspects of punctuation, drawing our points from assorted, naturally occurring sentences. We present our formal models of these sentences and the semantic contributions of punctuation marks. Our formalism is a simpli ed analogue of an extension|due to Nicholas Asher|of Discourse Representation Theory.