Author

S. Iacus

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#small language model Review Open access Sep 2026

Rethinking Scale: The Efficacy of Fine-Tuned Open-Source LLMs in Large-Scale Reproducible Social Science Research

Large language models (LLMs) are distinguished by their architecture, parameter size, and performance capabilities. Social scientists have increasingly adopted LLMs to automate high-dimensional text classification tasks which are difficult to scale with human coders. Very large, closed-source models often deliver super...

Marcello Carammia, S. Iacus, G. Porro · Social science computer revi... · 0 citations

#large language models Review Open access Nov 2025

Two Americas of Well-Being: Divergent Rural–Urban Patterns of Life Satisfaction and Happiness from 2.6 B Social Media Posts

Using 2.6 billion geolocated tweets (2014–2022) and a fine-tuned generative language model, we construct county-level indicators of life satisfaction and happiness for the United States. We document an apparent rural–urban paradox: even in unadjusted county-level means, rural counties express higher life satisfaction w...

S. Iacus, G. Porro · Journal of Happiness Studies · 1 citation