Analysis of Pragmatic Presupposition in “Qiushi” Based on LDA Model from Linguistic Adaptation Theory

Abstract

This research, grounded in Linguistic Adaptation Theory, selects 648 English Qiushi Journal articles from 2015 to 2024 as corpus. It applies the LDA topic model to proportional samples 18 papers and codes their pragmatic presuppositions via NVivo to analyze presupposition strategies’ traits.

Results show six core national governance themes covering politics, economy and livelihood. Its thematic evolution falls into three dynamically adaptive stages with shifting research focuses. Besides, pragmatic presuppositions form a three-dimensional adaptive pattern matching linguistic structures, changing contexts and cultural salience.

The study enriches LDA’s linguistic empirical applications, broadens Adaptation Theory’s coverage, facilitates cross-research of pragmatic presupposition and macro-linguistics, and offers a fresh angle for political discourse pragmatic strategies.