Year: 2025
Type: conference-paper
Abstract: Large language models (LLMs) have advanced conversational AI assistants.However, systematically evaluating how well these assistants apply personalization-adapting to individual user preferences while completing tasks-remains challenging.Existing personalization benchmarks focus on chit-chat, nonconversational tasks, or narrow domains, failing to capture the complexities of personalized task-oriented assistance.To address this, we introduce PersonaLens, a comprehensive benchmark for evaluating personalization in task-oriented AI assistants.Our benchmark features diverse user profiles equipped with rich preferences and interaction histories, along with two specialized LLM-based agents: a user agent that engages in realistic task-oriented dialogues with AI assistants, and a judge agent that employs the LLM-as-a-Judge paradigm to assess personalization, response quality, and task success.Through extensive experiments with current LLM assistants across diverse tasks, we reveal significant variability in their personalization capabilities, providing crucial insights for advancing conversational AI systems.
Authors: Zheng Zhao, Clara Vania, Subhradeep Kayal, Naila Khan, Shay B Cohen, Emine Yilmaz
Institutions: University of Edinburgh, University College London
Language: English
Topic: Speech and dialogue systems
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: gold
OpenAlex ID: W4412888022