Research

My research examines how AI agents reshape the ways groups and communities make decisions, communicate, and create culture. I use social network analysis, causal inference, and field experiments involving artificial agents.

01 Experiment design figure

A field experiment of social influence and behavioral contagion with bots on Reddit

Hiroki Oda, Kinga Makovi, Taha Yasseri, Milena Tsvetkova · arXiv preprint

Apparent human and bot accounts gave symbolic awards to Reddit users with different rationales. Awards did not increase activity — and lottery-rationale awards from bots reduced it — but they did encourage direct communication between users.

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02 Co-genre network visualization

Algorithmically created cultural tastes

Hiroki Oda · working paper

A Spotify field experiment on how recommendation algorithms form and reinforce music-genre tastes, measured along variety and atypicality with a co-genre network — connecting cultural sociology with computational methods.

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