CATA
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CATA — Content Analysis Text Analyzer
News analytics for event research. Tone, novelty, and topic classification on news text around events.
What it does
The Content Analysis Text Analyzer (CATA) processes news text to extract tone, novelty, and topic signals around events. Use it to construct news-based event studies, build sentiment indices, or pre-screen events for unusual coverage.
How it integrates
The CATA computation runs on a separate R-backend (open source, peer-reviewed). The Drupal frontend you're reading provides documentation, examples, and access; the calculation API is bridged via Cloudflare Workers and accepts CSV uploads or single-event JSON payloads.