Hate speech toward migrants on a citizen reporting platform concentrates in neighborhoods undergoing demographic change

• URL: http://arxiv.org/abs/2608.12581v1
• Date: Wed, 12 Aug 2026 20:52:19 GMT
• Title: Hate speech toward migrants on a citizen reporting platform concentrates in neighborhoods undergoing demographic change
• Abstract summary: We analyze over 550,000 geolocated reports from SOtemporal (Chiles largest citizen reporting platform)<n>We fine-tune a Spanish hate speech classifier to validate it against human labels.<n>Hate speech concentrates in areas with recent demographic change rather than in established migrant communities.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Understanding when migration generates social integration or exclusion is a central challenge for urban communities. Existing research has mostly relied on surveys, administrative data, or aggregate indicators that fail to capture expressions of exclusion at fine spatiotemporal scales. Here, we analyze over 550,000 geolocated reports from SOSAFE (Chile's largest citizen reporting platform) to examine the relationship between migration and hate speech in Santiago. We fine-tune a Spanish hate speech classifier and validate it against human labels. Reports that mention migrants are more likely to contain hate speech than other reports. Hate speech concentrates in areas with recent demographic change (post-2010 arrivals) rather than in established migrant communities. The spatial analysis shows that hate speech hotspots coincide with neighborhoods where recent migrants comprise over a third of the population. Coldspots appear in high-education sectors with minimal recent migration. Reports with hate speech and reports that mention migrants receive more engagement, although their combination is not amplified further. These results show digital bordering on a citizen reporting platform: exclusionary discourse concentrates, and receives more engagement, in neighborhoods undergoing recent demographic change.

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