This paper uses computational experiments to explore the role of exposure in the emergence of construction grammars. While usage-based grammars are hypothesized to depend on a learner's exposure to actual language use, the mechanisms of such exposure have only been studied in a few constructions in isolation. This paper experiments with (i) the growth rate of the constructicon, (ii) the convergence rate of grammars exposed to independent registers, and (iii) the rate at which constructions are forgotten when they have not been recently observed. These experiments show that the lexicon grows more quickly than the grammar and that the growth rate of the grammar is not dependent on the growth rate of the lexicon. At the same time, register-specific grammars converge onto more similar constructions as the amount of exposure increases. This means that the influence of specific registers becomes less important as exposure increases. Finally, the rate at which constructions are forgotten when they have not been recently observed mirrors the growth rate of the constructicon. This paper thus presents a computational model of usage-based grammar that includes both the emergence and the unentrenchment of constructions.

翻译：本文使用计算实验来探讨在建筑语法出现时暴露的作用。 以使用为基础的语法假设取决于学习者实际语言的暴露, 但这种暴露的机制只在个别建筑中单独研究过。 此纸实验涉及:(一) 建筑环境的增长率, (二) 接触独立登记册的语法的趋同率, (三) 在最近没有观察到这些建筑时被遗忘的速度。 这些实验显示,以使用为基础的语法的增长速度比语法的增长速度更快, 语法的增长率并不取决于词法的增长率。 同时, 具体注册的语法随着暴露程度的增加而集中到更相似的构造上。 这意味着,随着暴露的增加,具体登记册的影响变得不太重要。 最后, 近期没有观察到的建筑环境被遗忘的速度反映了建筑环境的增长速度。 因此, 本文展示了基于使用的语法的计算模型, 包括建筑的出现和不准备。