LLMTreeRec: Unleashing the Power of Large Language Models for Cold-Start Recommendations

Fuente: arXiv
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Autores principales: Zhang, Wenlin, Wu, Chuhan, Li, Xiangyang, Wang, Yuhao, Dong, Kuicai, Wang, Yichao, Dai, Xinyi, Zhao, Xiangyu, Guo, Huifeng, Tang, Ruiming
Formato: Preprint
Publicado: 2024
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author Zhang, Wenlin
Wu, Chuhan
Li, Xiangyang
Wang, Yuhao
Dong, Kuicai
Wang, Yichao
Dai, Xinyi
Zhao, Xiangyu
Guo, Huifeng
Tang, Ruiming
author_facet Zhang, Wenlin
Wu, Chuhan
Li, Xiangyang
Wang, Yuhao
Dong, Kuicai
Wang, Yichao
Dai, Xinyi
Zhao, Xiangyu
Guo, Huifeng
Tang, Ruiming
contents The lack of training data gives rise to the system cold-start problem in recommendation systems, making them struggle to provide effective recommendations. To address this problem, Large Language Models (LLMs) can model recommendation tasks as language analysis tasks and provide zero-shot results based on their vast open-world knowledge. However, the large scale of the item corpus poses a challenge to LLMs, leading to substantial token consumption that makes it impractical to deploy in real-world recommendation systems. To tackle this challenge, we introduce a tree-based LLM recommendation framework LLMTreeRec, which structures all items into an item tree to improve the efficiency of LLM's item retrieval. LLMTreeRec achieves state-of-the-art performance under the system cold-start setting in two widely used datasets, which is even competitive with conventional deep recommendation systems that use substantial training data. Furthermore, LLMTreeRec outperforms the baseline model in A/B testing on Huawei industrial systems. Consequently, LLMTreeRec demonstrates its effectiveness as an industry-friendly solution that has been successfully deployed online. Our code is available at: https://github.com/Applied-Machine-Learning-Lab/LLMTreeRec.
format Preprint
id arxiv_https___arxiv_org_abs_2404_00702
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle LLMTreeRec: Unleashing the Power of Large Language Models for Cold-Start Recommendations
Zhang, Wenlin
Wu, Chuhan
Li, Xiangyang
Wang, Yuhao
Dong, Kuicai
Wang, Yichao
Dai, Xinyi
Zhao, Xiangyu
Guo, Huifeng
Tang, Ruiming
Information Retrieval
The lack of training data gives rise to the system cold-start problem in recommendation systems, making them struggle to provide effective recommendations. To address this problem, Large Language Models (LLMs) can model recommendation tasks as language analysis tasks and provide zero-shot results based on their vast open-world knowledge. However, the large scale of the item corpus poses a challenge to LLMs, leading to substantial token consumption that makes it impractical to deploy in real-world recommendation systems. To tackle this challenge, we introduce a tree-based LLM recommendation framework LLMTreeRec, which structures all items into an item tree to improve the efficiency of LLM's item retrieval. LLMTreeRec achieves state-of-the-art performance under the system cold-start setting in two widely used datasets, which is even competitive with conventional deep recommendation systems that use substantial training data. Furthermore, LLMTreeRec outperforms the baseline model in A/B testing on Huawei industrial systems. Consequently, LLMTreeRec demonstrates its effectiveness as an industry-friendly solution that has been successfully deployed online. Our code is available at: https://github.com/Applied-Machine-Learning-Lab/LLMTreeRec.
title LLMTreeRec: Unleashing the Power of Large Language Models for Cold-Start Recommendations
topic Information Retrieval
url https://arxiv.org/abs/2404.00702