8 papers
Population Fidelity: Evaluating Population Representativeness in LLMs
Neemias B. da Silva, Martin Lukk, Ali Sutani +5
Large language models (LLMs) show considerable potential in simulating human attitudes and preferences. Prior work finds that LLM-generated responses can compress the range of atti…
CityBehavEx: A Scalable and Empirically Validated LLM-Assisted Urban Simulation Platform
Gustavo H. Santos, Aline Viana, Thiago H Silva
Recent LLM-based multi-agent urban simulators can generate semantically rich city routines, but they remain costly to scale and are often weakly validated against empirical mobilit…
When Plausible Is Not Realistic: Evaluating Human Mobility in LLM-Based Urban Simulation
Gustavo H. Santos, Aline Carneiro Viana, Thiago H. Silva
LLM-based generative agents are increasingly used in urban simulators, yet it remains unclear whether they reproduce empirically realistic human mobility patterns or merely generat…
Stable Behavior, Limited Variation: Persona Validity in LLM Agents for Urban Sentiment Perception
Neemias B da Silva, Rodrigo Minetto, Daniel Silver +1
Large Language Models (LLMs) are increasingly used as proxies for human perception in urban analysis, yet it remains unclear whether persona prompting produces meaningful and repro…
Persona Prompting in Multimodal Urban Perception: Descriptive Convergence and Interpretive Variation
Neemias da Silva, Matt Ratto, Myriam Delgado +3
This study examines how persona prompting shapes language generated by two multimodal large language models in urban perception, a setting for examining subjective interpretations…
A Relational Model of Neighborhood Mobility: The Role of Amenities and Cultural Alignment
Thiago H Silva, Daniel Silver, Gustavo Santos +1
Why are some neighborhoods strongly connected while others remain isolated? Although standard explanations focus on demographics, economics, and geography, movement across the city…
CityHood: An Explainable Travel Recommender System for Cities and Neighborhoods
Gustavo H Santos, Myriam Delgado, Thiago H Silva
We present CityHood, an interactive and explainable recommendation system that suggests cities and neighborhoods based on users' areas of interest. The system models user interests…
Interest Networks (iNETs) for Cities: Cross-Platform Insights and Urban Behavior Explanations
Gustavo H. Santos, Myriam Delgado, Thiago H. Silva
Location-Based Social Networks (LBSNs) provide a rich foundation for modeling urban behavior through iNETs (Interest Networks), which capture how user interests are distributed thr…