Author

Alexandre Lacoste

2 papers indexed here

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Sep 2026

AdaptArena: Evaluating Test-Time Personalization of Web Agents

Large language model (LLM) agents have demonstrated strong performance on complex web navigation tasks, yet they remain brittle in real-world settings where user intentions are underspecified and preferences are heterogeneous. In practice, users rarely provide explicit profiles, requiring agents to infer latent prefere...

Dong-Chan Shin, Xing Han Lù, Jiaqi Deng et al. · 0 citations

#natural language process... Oct 2025

FocusAgent: Simple Yet Effective Ways of Trimming the Large Context of Web Agents

A variant of FocusAgent significantly reduces the success rate of prompt-injection attacks, including banner and pop-up attacks, while maintaining task success performance in attack-free settings, highlighting that targeted LLM-based retrieval is a practical and robust strategy for building web agents that are efficien...

Imene Kerboua, S. Shayegan, Megh Thakkar et al. · arXiv.org · 15 citations