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Language-Based User Profiles for Recommendation
Feb. 27, 2024, 5:42 a.m. | Joyce Zhou, Yijia Dai, Thorsten Joachims
cs.LG updates on arXiv.org arxiv.org
Abstract: Most conventional recommendation methods (e.g., matrix factorization) represent user profiles as high-dimensional vectors. Unfortunately, these vectors lack interpretability and steerability, and often perform poorly in cold-start settings. To address these shortcomings, we explore the use of user profiles that are represented as human-readable text. We propose the Language-based Factorization Model (LFM), which is essentially an encoder/decoder model where both the encoder and the decoder are large language models (LLMs). The encoder LLM generates a compact …
abstract arxiv cs.cl cs.hc cs.ir cs.lg explore factorization human interpretability language matrix profiles recommendation text type vectors
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