Persona Validity in LLM Agents for Urban Sentiment Perception

Project website for “Stable Behavior, Limited Variation: Persona Validity in LLM Agents for Urban Sentiment Perception,” IEEE DCOSS-IoT-UrbCom 2026.

• Website: https://minds-lab-utfpr.github.io/MLLMs-persona-evaluation/
• Paper: https://arxiv.org/abs/2604.28048
• PDF: https://arxiv.org/pdf/2604.28048
• DOI: https://doi.org/10.1109/DCOSS-IoT69657.2026.00179
• Code: https://github.com/neemiasbsilva/MLLMs-persona-evaluation
• Dataset: https://huggingface.co/datasets/MInDS-lab-UTFPR/UrbanPersona-60K (CC BY 4.0)

Project layout

Path	What lives there
app/page.tsx	The order of the sections, and nothing else
app/components/	One component per section, plus the pieces they share
app/styles/	One stylesheet per section, imported by app/globals.css
content/	The paper's own words and numbers, free of markup
lib/	Page metadata and JSON-LD, both derived from content/
scripts/figures/	The SVG builders behind npm run figures
scripts/pages-verify/	The static-export checker behind npm run verify:pages
tests/	One test file per property of the export

Local development

Requires Node.js 22.13 or newer.

npm ci
npm run dev

Open the local URL printed by Next.js. A plain npm run build writes a static export to out/ with no base path, which is what the local server and the tests read.

Tests

npm test

Builds the export and checks the rendered HTML: title and author metadata, the citation identifiers, the JSON-LD article and dataset, the link-preview card, the released resource links, and both figures with all 120 heatmap cells.

Citation

Ready-to-import citation files are available as public/citation.bib, public/citation.ris, and CITATION.cff.

@inproceedings{urbcom26-neemias,
  title={Stable Behavior, Limited Variation: Persona Validity in LLM Agents for Urban Sentiment Perception},
  author={Neemias B da Silva and Rodrigo Minetto and Daniel Silver and Thiago H Silva},
  year={2026},
  booktitle={Proc. of IEEE DCOSS-IoT-UrbCom},
  address={Reykjavik, Iceland}
}