In what situations is the speech of foreign policy officials a reflection of speech expounding grand theories of International Relations? Using a linear support vector classification algorithm, we analyze all the published volumes of Foreign Relations of the United States as a single corpus, examining the use of five frames taken from a mix of academic theory and day-to-day practice: realism, geopolitics, liberalism, Cold War politics, and a pragmatic frame. We also investigate how the use of these frames varies across subject matter and in ways that are consistent with some simple hypotheses that connect frame use to situational factors.

中文翻译：

---

大理论会影响官员的讲话吗？

在什么情况下，外交政策官员的讲话是阐述国际关系宏大理论的讲话的反映？使用线性支持向量分类算法，我们将美国对外关系的所有出版卷作为一个单一的语料库进行分析，检查从学术理论和日常实践中提取的五个框架的使用：现实主义、地缘政治、自由主义、冷战政治和务实的框架。我们还调查了这些框架的使用如何因主题而异，并以与将框架使用与情境因素联系起来的一些简单假设相一致的方式变化。