Sociological Methods & Research · 2018 · 233 citations · 53 references
ComputingComputer ScienceSociologyComputational LinguisticsNatural Language ProcessingSocial InequalityComputational Text AnalysisContent AnalysisInformation ExtractionText MiningText RepresentationTextual AnalysisDigital Text AnalysisInformation Extraction From TextText CategorizationText Classification
Advances in computer science and computational linguistics have produced faster computational approaches to structuring and analyzing textual data, yet their ability to identify complex, socially constructed, and unsettled theoretical concepts—central to sociological content analysis—remains untested. The study aims to compare the outputs of dictionary, supervised machine learning, and unsupervised machine learning methods with a rigorous hand‑coded analysis of inequality in 1,253 news articles. Researchers evaluated the three computer‑assisted approaches against the hand‑coded benchmark, assessing how well each method replicates the manual coding. Supervised machine learning best reproduces hand‑coded results, but each method has unique strengths and weaknesses that can complement one another, so analysts should employ all approaches purposefully.
Advances in computer science and computational linguistics have yielded new, and faster, computational approaches to structuring and analyzing textual data. These approaches perform well on tasks like information extraction, but their ability to identify complex, socially constructed, and unsettled theoretical concepts—a central goal of sociological content analysis—has not been tested. To fill this gap, we compare the results produced by three common computer-assisted approaches—dictionary, supervised machine learning (SML), and unsupervised machine learning—to those produced through a rigorous hand-coding analysis of inequality in the news ( N = 1,253 articles). Although we find that SML methods perform best in replicating hand-coded results, we document and clarify the strengths and weaknesses of each approach, including how they can complement one another. We argue that content analysts in the social sciences would do well to keep all these approaches in their toolkit, deploying them purposefully according to the task at hand.
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