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Per-category censorship classifiers (NEWS / ANON / GRP / PORN / COMT / MMED / SRCH)
7 specialized XGBoost classifiers exposing WHAT a country is targeting, not just whether. NEWS, ANON (Tor/VPN/Lantern), GRP, PORN, COMT, MMED, SRCH all promoted via the alt-AUC path (stratified AUC 0.913-0.977, LOCO median AUC 0.849-0.957). 5 of 7 primary categories cleared (needed 4), so family…
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7 specialized XGBoost classifiers exposing WHAT a country is targeting, not just whether. NEWS, ANON (Tor/VPN/Lantern), GRP, PORN, COMT, MMED, SRCH all promoted via the alt-AUC path (stratified AUC 0.913-0.977, LOCO median AUC 0.849-0.957). 5 of 7 primary categories cleared (needed 4), so family promote passes. POLR (political opposition) and RELR (religion) honest-skipped due to zero coverage in evidence. Labels back-filled via a 37-domain hand-curated Citizen Lab category map because only 18 distinct domains in evidence have domain_category set. Endpoints return available=false with transparent reasons for skipped categories. v3.3 stays as the production default; this is additive transparency for journalists asking "is this regime suppressing journalism, circumvention tools, or messaging?"
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