arXiv AI By Dimitris Michailidis, Petter T\"ornberg, Fernando P. Santos

From Caricature to Collective Artifact: How Persona Construction Drives Polarization in Generative Social Simulations

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arXiv AI
2d ago

Validating LLM-generated political networks with survey-reported partisan exposure

The study evaluates large language models (LLMs) that generate political networks by comparing them to survey-reported partisan exposure from the ANES 2020–2022 Social Media Study. It finds that while network structure and political assortativity vary across model configurations, many models either over‑separate Democratic and Republican egos or underestimate Republican exposure, leading to group‑specific errors in local partisan environments. These discrepancies persist even among networks with similar aggregate properties, indicating that aggregate metrics alone can mask important individual‑level inaccuracies.

By Marco Tonin, Michele Tizzoni, Bruno Lepri, Luca Maria Aiello
arXiv Computation and Language
5d ago

VoteGEO-Bench: Measuring the Impact of Generative Engine Optimization on Electoral Visibility

VoteGEO-Bench is a benchmark that examines how generative engine optimization (GEO) affects the visibility of election-related web content in large language model responses. It covers the 2024 U.S. presidential election and the 2026 Japanese House of Representatives election, using election queries, historical webpages, and voter personas. The study evaluates 11 rewriting strategies, finding that target‑specified rewrites and those that improve page organization or strengthen arguments increase exposure more than other tactics, while partisan identities can create larger baseline exposure gaps than a single rewritten page.

By Shiqi Zhang, Xiaokui Xiao
arXiv Computation and Language
Sep 1

Political Ideology Shifts in Large Language Models

arXiv:2508.16013v2 Announce Type: replace Abstract: Large language models (LLMs) are increasingly deployed in politically sensitive contexts, raising concerns about their susceptibility to ideologica...

By Pietro Bernardelle, Stefano Civelli, Leon Fr\"ohling, Riccardo Lunardi, Kevin Roitero, Gianluca Demartini