2015
DOI: 10.1073/pnas.1512221112
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Lexical shifts, substantive changes, and continuity in State of the Union discourse, 1790–2014

Abstract: This study reveals that the entry into World War I in 1917 indexed the decisive transition to the modern period in American political consciousness, ushering in new objects of political discourse, a more rapid pace of change of those objects, and a fundamental reframing of the main tasks of governance. We develop a strategy for identifying meaningful categories in textual corpora that span long historic durées, where terms, concepts, and language use changes. Our approach is able to account for the fluidity of… Show more

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Cited by 136 publications
(109 citation statements)
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References 31 publications
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“…Finally, this study has important implications for the nascent field of computational social science. I introduced new techniques for mapping cultural networks and public deliberation that build on recent attempts to synchronize social network analysis and natural language processing (14,15). These new tools offer a more dynamic alternative to topic models and other new forms of automated text analysis that are also poorly suited for short texts such as social media messages.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Finally, this study has important implications for the nascent field of computational social science. I introduced new techniques for mapping cultural networks and public deliberation that build on recent attempts to synchronize social network analysis and natural language processing (14,15). These new tools offer a more dynamic alternative to topic models and other new forms of automated text analysis that are also poorly suited for short texts such as social media messages.…”
Section: Discussionmentioning
confidence: 99%
“…For example, the lemma of the term "running" is "run." Next, part-of-speech taggers were applied to the lemmatized text to identify nouns, proper nouns, and noun phrases, which are most likely to define the substantive content or discussive theme of a message (15,16). Next, I measured the term frequency-inverse document frequency for each of these terms.…”
Section: Social Sciencesmentioning
confidence: 99%
“…2). Coarse-graining a text through bag-of-words is often, for example, a good first start towards finding out which were most likely written by the same author, or in the same time period, or as the raw material for accounts of cultural dynamics [20].…”
Section: Coarse-graining the Materials Worldmentioning
confidence: 99%
“…2). Coarse-graining a text through bag-of-words is often, for example, a good first start towards finding out which were most likely written by the same author, or in the same time period, or as the raw material for accounts of cultural dynamics [20].An ideal coarse-graining not only summarizes the full system at any point in time, but provides descriptions with a useful-if probabilistic-logic connecting them together. Much remains to be 5 done in understanding the relationship between how we coarse-grain, and why: the ways in which a particular desire (summary, prediction, explanation, understanding) in a particular field (social, biological, physical) suggests a particular algorithm.…”
mentioning
confidence: 99%
“…The first is Russian historiography (2000-2015) of scientific and public-political discourse (works on sociolinguistics and the methodology of socio-humanitarian science in general) [1][2][3]. The second is Anglophone historiography of the scientific and public-political discourse research of the last two decades [4][5][6][7]. The third is AngloAmerican Russian studies, the analysis of which is proposed to assess the relevance of Anglo-American methodological tools for the analysis of Russian 3 Historiography and methodology of modern Russian research on scientific and political discourse…”
Section: Research Sources and Theoretical Frameworkmentioning
confidence: 99%