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LEARN: Knowledge Adaptation from Large Language Model to Recommendation for Practical Industrial Application

7 May 2024arXiv:2405.03988archive 2025-07-28

Jian Jia, Yipei Wang, Yan Li, Honggang Chen, Xuehan Bai, Zhaocheng Liu, Jian Liang, Quan Chen, Han Li, Peng Jiang, Kun Gai

Contemporary recommendation systems predominantly rely on ID embedding to capture latent associations among users and items. However, this approach overlooks the wealth of semantic information embedded within textual descriptions of items, leading to suboptimal performance and poor generalizations. Leveraging the capability of large language models to comprehend and reason about textual content presents a promising avenue for advancing recommendation systems. To achieve this, we propose an Llm-driven knowlEdge Adaptive RecommeNdation (LEARN) framework that synergizes open-world knowledge with collaborative knowledge. We address computational complexity concerns by utilizing pretrained LLMs as item encoders and freezing LLM parameters to avoid catastrophic forgetting and preserve open-world knowledge. To bridge the gap between the open-world and collaborative domains, we design a twin-tower structure supervised by the recommendation task and tailored for practical industrial application. Through experiments on the real large-scale industrial dataset and online A/B tests, we demonstrate the efficacy of our approach in industry application. We also achieve state-of-the-art performance on six Amazon Review datasets to verify the superiority of our method.

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clean_txt adxcreative/LEARN/src/preprocess/amazon_2018/build_product2text.py official repository ran fingerprinted MIT (permissive) · bda3269ecfd46816 · report
get_nb_trainable_parameters adxcreative/LEARN/src/training/main_amazon.py official repository ran MIT (permissive) · 958df4f07977d39c · report
get_text_description adxcreative/LEARN/src/preprocess/amazon_2018/build_product2text.py official repository ran MIT (permissive) · 663731ce69f8cccf · report
is_master adxcreative/LEARN/src/training/main_amazon.py official repository ran MIT (permissive) · f6406e2db0e6d676 · report
setup_primary_logging adxcreative/LEARN/src/training/logger.py official repository ran MIT (permissive) · e8e252db11d5a8f9 · report
construct_classification_loss adxcreative/LEARN/src/training/train_amazon.py official repository unverified MIT (permissive) · 87eac919f00ed268 · report
construct_contrastive_loss adxcreative/LEARN/src/training/train_amazon.py official repository unverified MIT (permissive) · 2f3e4404a7c0a5dd · report
cosine_lr adxcreative/LEARN/src/training/scheduler.py official repository unverified MIT (permissive) · 932d44bbf8bd0e3f · report
get_finetune_dataset adxcreative/LEARN/src/training/dataset_amazon.py official repository unverified MIT (permissive) · 06e42011523721c3 · report

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Collaborative FilteringLanguage ModelingLanguage ModellingLarge Language ModelRecommendation SystemsWorld Knowledge

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