about
Privacy-Aware Visual Language Models (arxiv.org)
3 points by alanzhuly on May 28, 2024 | hide | past | pdf | discuss on HN

In plain words: Twelve vision-language models were tested on spotting privacy-sensitive images; cleaner tests aligned with privacy law and a tuning set of a few hundred examples were built to improve it. Fine-tuning on those examples beat GPT-4 on privacy while keeping strong performance on other tasks.

Abstract

As Visual Language Models (VLMs) become increasingly embedded in everyday applications, ensuring they can recognise and appropriately handle privacy-sensitive content is thus essential to protect users. To this end, we conduct a comprehensive evaluation of twelve state-of-the-art VLMs and identify limitations in their understanding of visual privacy. However, existing privacy-related datasets often suffer from label inconsistencies, limiting their reliability. To address this, we introduce two compact, high-quality benchmarks, PrivBench and PrivBench-H, that focus on commonly recognised visual privacy categories aligned with the General Data Protection Regulation (GDPR). Additionally, we present PrivTune, an instruction-tuning dataset specifically curated to improve privacy sensitivity. We obtain multiple Privacy VLMs by fine-tuning off-the-shelf VLMs on only a few hundred samples from PrivTune, which leads to substantial gains on all benchmarks, surpassing even GPT-4, while maintaining strong performance on other tasks. Our findings show that privacy-awareness in VLMs can be substantially improved with minimal data and careful dataset design, setting the stage for safer, more privacy-aligned AI systems.

Laurens Samson, Nimrod Barazani, Sennay Ghebreab, Yuki M. Asano
arXiv:2405.17423 · cs.CV, cs.CL · submitted May 27, 2024 · updated Jun 24, 2026
abstract · pdf · html · Accepted at Transactions on Machine Learning Research (TMLR)

add comment on HN