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Joan Perez

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#machine learning Preprint Sep 2026

Network-based Spatial Context Retrieval for Open-weight LLMs: A Faithfulness Benchmark for Grounded Geographic Reasoning

Large language models (LLMs) encode substantial latent geographic knowledge, yet they reason poorly over space and are unreliable when queried from coordinates alone. Useful behaviour emerges only when structured spatial context is supplied in the prompt. This raises a question geographic evaluation has left unexamined...

Joan Perez · 0 citations
Open access Mar 2026

UVLM: A Universal Vision-Language Model Loader for Reproducible Multimodal Benchmarking

UVLM (Unified Vision–Language Model), a pip-installable Python package that provides a unified interface for loading, configuring, and running multiple VLM architectures on custom image analysis tasks, is introduced.

Joan Perez, Giovanni Fusco · 0 citations
Review Aug 2026

From Street View Imagery to Street Quality Indicators: Vision Language Inference for the Suburban 15-minute City

This paper presents a planning-oriented assessment of streetscape qualities in the north-eastern periphery of Nice using the latest release of SAGAI (Streetscape Analysis with Generative AI), an open-source workflow that leverages vision-language models for large-scale streetscape analysis from Google Street View image...

Joan Perez, Giovanni Fusco · 0 citations

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