跨学科博士学位论文摘要的言据性及其人际意义

Evidentiality and Interpersonal Meaning on Interdisciplinary Doctoral Dissertation Abstracts

言据性是指知识的来源以及说话人对知识可靠性的态度。本文以言据性为基础,对语言学、计算机科学、医学和经济学这四门学科的400篇博士学位论文语料库进行统计和分析。结果显示:四门学科中均使用感官型据素、报道型据素、信念型据素和推断型据素,其中,对信念型据素的应用频率偏低。在人际意义方面,言据性可以用于评价信息的可靠性,可以作为元语篇引导读者理解语篇,表达对命题或读者的态度。

Based on evidentiality,this paper aims to conduct statistics and analysis towards 400 abstracts involving four disciplines named linguistics,computer science,medicine and economics by means of SPSS and EXCEL from the perspective of sensory evidential,reporting evidential,belief evidential and inferring evidential.The result shows that four disciplines make use of sensory evidential,reporting evidential,belief evidential and inferring evidential,with the low frequency of belief evidential.In terms of interpersonal meaning,evidentiality can be used for evaluating reliability of information,can be regarded as metadiscourse so as to guide readers to understand the texts,express attitudes towards propositions or readers.