The over-abundance of information today, especially online, has established the need for natural language technologies that can help the user find relevant information; multidocument summarization (MDS) and question answering (QA) are two examples. The requirement in MDS and openended QA to produce multi-sentential answers imposes the extra demand that the output of such systems be a coherent d...

this article is going to study of effective sociological factors on production of political narrative literature discourse during sixty and seventy decades. in this order, robert wuthnow & randall collins’s theories are used in total emphasizes on four concepts such as: political reforms of government, crisis in moral order of society, forming interaction chains between writers & resource mobil...

One of the central issues in the study of discourse anaphora is concerned with the problem of anaphoric distribution in discourse, namely how to account for the choice of a particular referential/anaphoric form at a particular point in discourse. Needless to say, anaphoric distribution in discourse is a very complex phenomenon, involving, among other things, structural, cognitive and pragmatic ...

Discourse comprehension is a hallmark of human social behaviour and refers to the act of interpreting a written or spoken message by constructing mental representations that integrate incoming language with prior knowledge and experience. Here, we report a human lesion study (n = 145) that investigates the neural mechanisms underlying discourse comprehension (measured by the Discourse Comprehen...

This paper has three aims: (1) to generalize a computational account of the discourse process called CENTERING, (2) to apply this account to discourse processing in Japanese so that it can be used in computational systems for machine translation or language understanding, and (3) to provide some insights on the effect of syntactic factors in Japanese on discourse interpretation. We argue that w...

How is radical change in global health policy possible? Material factors such as economics or human resources are important, but ideational factors such as ideas and discourse play an important role as well. In this paper, I apply a theoretical framework to show how discourse made it possible for public and private actors to fundamentally change their way of working together--to shift from inte...

A text partition model is proposed to determine the boundaries of discourse structures. It is based on association of noun-noun relations and noun-verb relations defined on discourse level and sentence level. Three factors are considered: 1) repetition of words, 2) importance of words, and 3) collocational semantics. Ten texts serve as experimental objects. The applications of the results to se...

We provide a systematic study of previously proposed features for implicit discourse relation identification, identifying new feature combinations that optimize F1-score. The resulting classifiers achieve the best F1-scores to date for the four top-level discourse relation classes of the Penn Discourse Tree Bank: COMPARISON, CONTINGENCY, EXPANSION, and TEMPORAL. We further identify factors for ...

A discourse strategy is a strategy for communicating with another agent. Designing effective dialogue systems requires designing agents that can choose among discourse strategies. We claim that the design of effective strategies must take cognitive factors into account, propose a new method for testing the hypothesized factors, and present experimental results on an effective strategy for suppo...