Purpose: This visualization replicates and extends the 2018 paper "New Positivism, Same as the Old Positivism" by showing how specific terms appear in Japanese Studies journals over time.
Methodology: For each journal and year, we count the percentage of articles that contain each term (article-based proportion). This approach avoids bias from articles that mention a term many times.
Data: 15,677 journal-year-term records from 4 journals (HJAS, JAS, JJS, MN). Coverage spans 1936–2020.
Collocate Analysis: The sidebar shows decade-stratified collocates computed via Pointwise Mutual Information (PMI) on the full text of all articles. This reveals how terms shift meaning over time—for example, "discourse" shows "political" collocates in the 1970s but becomes ubiquitous in later decades.
Features: Select any tracked term to see its trajectory across all journals. Enable smoothing to reduce year-to-year noise. Enable normalization to compare relative changes across journals with different baselines.
Interpretation: Rising trends indicate growing scholarly attention. Different patterns across journals may reflect editorial policies, institutional priorities, or field-wide shifts.