Text as Data av Justin Grimmer, Margaret E. Roberts, Brandon M. Stewart

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<p><b>A guide for using computational text analysis to learn about the social world </b><br><br>From social media posts and text messages to digital government documents and archives, researchers are bombarded with a deluge of text reflecting the social world. This textual data gives unprecedented insights into fundamental questions in the social sciences, humanities, and industry. Meanwhile new machine learning tools are rapidly transforming the way science and business are conducted. <i>Text as Data </i>shows how to combine new sources of data, machine learning tools, and social science research design to develop and evaluate new insights.<br><br><i>Text as Data </i>is organized around the core tasks in research projects using text¿representation, discovery, measurement, prediction, and causal inference. The authors offer a sequential, iterative, and inductive approach to research design. Each research task is presented complete with real-world applications, example methods, and a di