Who's Who of AI

Julia Mendelsohn

444 trust researcher @jmendelsohn2.bsky.social · 4,246 followers
NLP & language AI research
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Researcher with public evidence across NLP & language, AI research.

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19d ago
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Asst Prof @UMD Info College. NLP, computational social science, political communication, linguistics. Past: Data Science Postdoc @UChicago, Info PhD @UMich, CS + Lx @Stanford. Interests: cats, Yiddish, talking to my cats in Yiddish.
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Articles & links

↻ Julia Mendelsohn reposted
Dustin Wright @dustinbwright.com

Which, whose, and how much knowledge do LLMs represent? I'm excited to share our preprint answering these questions: "Epistemic Diversity and Knowledge Collapse in Large Language Models" 📄Paper: arxiv.org/pdf/2510.04226 💻Code: github.com/dwright37/ll... 1/10

arxiv.org View on Bluesky →
↻ Julia Mendelsohn reposted
Dustin Wright @dustinbwright.com

Which, whose, and how much knowledge do LLMs represent? I'm excited to share our preprint answering these questions: "Epistemic Diversity and Knowledge Collapse in Large Language Models" 📄Paper: arxiv.org/pdf/2510.04226 💻Code: github.com/dwright37/ll... 1/10

GitHub - dwright37/llm-knowledge: A package for extracting knowledge and measuring epistemic diversity in LLMs. Associated with the paper "Epistemic Diversity and Knowledge Collapse in Large Language Models" github.com
AI Weekly's analysis →
  • A study of 27 LLMs across 155 topics and 12 countries found every system was less epistemically diverse than a basic web search baseline.
  • Larger models were counterintuitively less diverse than smaller ones, while retrieval-augmented generation improved diversity across the systems tested.
  • For country-specific topics, LLM parametric knowledge systematically reflected English sources over local-language ones, the authors report.
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Just arrived in Burlington for #IC2S2! My student Krystal Gong will be presenting: 👉 Thursday @ 10:45 in Chittenden (413) about geopolitical stance formation in LLMs 👉 Friday @ 14:15 in Jost Foundation (422) about quantifying persuasive cues in text (arxiv.org/abs/2606.14580) …

Persuasion Index: A Theory-Guided Framework for Persuasion Analysis arxiv.org
AI Weekly's analysis →
  • Persuasion Index is a taxonomy of 15 dimensions grounded in psychology and communication, implemented with 55 sub-features from lexicons and rule-based detectors.
  • The authors evaluate PI on four public datasets varying in domain, style, and outcome measures, and report linear models carry meaningful predictive signal while staying lightweight.
  • PI is released as an open-source package and web interface for principled and auditable analysis of human and AI-mediated communication.
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View on Bluesky · ♥ 11 ↻ 1 ↩ 0 · 2 from the directory shared this · 56d ago
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