Personal Large Language Model Agents: A Case Study on Tailored Travel Planning

Harmanpreet Singh, Nikhil Verma, Yixiao Wang, Manasa Bharadwaj, Homa Fashandi, Kevin Ferreira, Chul Lee


Abstract
Large Language Models (LLMs) have made significant progress, becoming more autonomous and capable of handling real-world tasks through their access to tools, various planning strategies, and memory, referred to as LLM agents. One emerging area of focus is customizing these models to cater to individual user preferences, thereby shaping them into personal LLM agents. This work investigates how the user model, which encapsulates user-related information, preferences, and personal concepts, influences an LLM agent’s planning and reasoning capabilities. We introduce a personalized version of TravelPlanner, called TravelPlanner+, and establish baselines for personal LLM agents. Our evaluation strategy contains an LLM-as-a-Judge component, which provides further in-depth insights into the decision-making process of a personal LLM agent by comparing generic and personal plans. Our findings reveal that while generic plans perform robustly, personal plans show marked improvement in relevance and suitability, with preference rates up to 74.4% on validation and 87.3% on the test set. These results highlight the potential of personal LLM agents to significantly enhance user satisfaction.
Anthology ID:
2024.emnlp-industry.37
Volume:
Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing: Industry Track
Month:
November
Year:
2024
Address:
Miami, Florida, US
Editors:
Franck Dernoncourt, Daniel Preoţiuc-Pietro, Anastasia Shimorina
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
486–514
Language:
URL:
https://aclanthology.org/2024.emnlp-industry.37
DOI:
Bibkey:
Cite (ACL):
Harmanpreet Singh, Nikhil Verma, Yixiao Wang, Manasa Bharadwaj, Homa Fashandi, Kevin Ferreira, and Chul Lee. 2024. Personal Large Language Model Agents: A Case Study on Tailored Travel Planning. In Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing: Industry Track, pages 486–514, Miami, Florida, US. Association for Computational Linguistics.
Cite (Informal):
Personal Large Language Model Agents: A Case Study on Tailored Travel Planning (Singh et al., EMNLP 2024)
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PDF:
https://aclanthology.org/2024.emnlp-industry.37.pdf