Hello, I'm

Tingyu Dai

Sociology Researcher

M.A. Sociology · Columbia University
Research Assistant · COMAP Lab, Northwestern University — with Prof. Yingdan Lu

Sociology of AI Computational Sociology Algorithmic Stratification

About

From philosophy, toward the social shape of intelligence.

I came to sociology from philosophy. The questions I cared about — about reasons, authority, and the conditions under which knowledge becomes legitimate — kept refusing to stay inside conceptual analysis. They wanted to be pursued where they actually take shape: in code, infrastructure, and the institutions that wrap around them.

My current work sits at the seam of computational sociology and the sociology of technology. I ask how AI systems — large language models, recommendation engines, algorithmic management platforms — are quietly redesigning the social forms that organize work, expertise, and status. Generative AI does not just automate tasks; it redistributes authority, collapses some hierarchies while raising new ones, and forces us to ask, again, who counts as a legitimate knower.

Previously I read philosophy at Peking University. I completed my M.A. in Sociology at Columbia, and serve as a Research Assistant in the COMAP Lab at Northwestern with Prof. Yingdan Lu.

Research

Three structures AI is quietly rewiring — organizations, ladders, legitimate knowledge.

AI & the Shape of the Firm

How generative AI redistributes coordination and decision rights inside organizations — flattening some hierarchies, raising new elites of “AI orchestrators,” and giving rise to thin organizations built less like pyramids than like swarms.

Organizations Mixed-methods LLM adoption

Algorithmic Stratification

AI builds new ladders even as it dissolves old ones. I theorize a stratification system organized around access to models, capacity to prompt, and ownership of training data — and ask which inequalities it reinforces and which it scrambles.

Ladders Status orders U.S. / China

The New Knowledge Class

When an LLM can draft a contract, diagnose a rash, or write a literature review, whose authority survives? Building on Abbott’s System of Professions, I trace how AI is renegotiating jurisdictional boundaries — and re-stratifying the professions from within.

Expertise Professions Interview-based

Publications

Working papers and ongoing projects — click any entry to expand the abstract. Email for the latest drafts.

Teaching & Service

Teaching Assistant — Sociology of Culture

Led weekly discussion sections, designed writing-intensive prompts on cultural theory, and graded undergraduate papers across two semesters.

Columbia University · 2025–present

Graduate Workshop Facilitator

Co-organized a fortnightly methods workshop for incoming M.A. students, focused on qualitative coding and mixed-methods design.

Columbia Graduate Sociology · 2024–2025

Philosophy Reading Group Convenor

Convened a weekly undergraduate reading group on contemporary epistemology and philosophy of social science.

Peking University · 2022–2023

Contact

Get in touch

Open to conversations about research, collaboration, and graduate study — particularly on the sociology of AI, computational sociology, and algorithmic stratification. Email is the surest way to reach me.