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CTR prediction plays a vital role in recommender systems. Recently, large language models (LLMs) have been applied in recommender systems due to their emergence abilities. While leveraging semantic information from LLMs has shown some…

Information Retrieval · Computer Science 2024-11-25 Chenxu Zhu , Shigang Quan , Bo Chen , Jianghao Lin , Xiaoling Cai , Hong Zhu , Xiangyang Li , Yunjia Xi , Weinan Zhang , Ruiming Tang

Modeling user preferences across domains remains a key challenge in slate recommendation (i.e. recommending an ordered sequence of items) research. We investigate how Large Language Models (LLM) can effectively act as world models of user…

Information Retrieval · Computer Science 2025-11-07 Baptiste Bonin , Maxime Heuillet , Audrey Durand

Large language models (LLMs) offer strong capabilities but raise cost and privacy concerns, whereas small language models (SLMs) facilitate efficient and private local inference yet suffer from limited capacity. To synergize the…

Computation and Language · Computer Science 2026-04-21 Hang Zeng , Xiangyu Liu , Yong Hu , Chaoyue Niu , Jiarui Zhang , Shaojie Tang , Fan Wu , Guihai Chen

Traditional recommendation systems are subject to a strong feedback loop by learning from and reinforcing past user-item interactions, which in turn limits the discovery of novel user interests. To address this, we introduce a hybrid…

Information Retrieval · Computer Science 2024-06-11 Jianling Wang , Haokai Lu , Yifan Liu , He Ma , Yueqi Wang , Yang Gu , Shuzhou Zhang , Ningren Han , Shuchao Bi , Lexi Baugher , Ed Chi , Minmin Chen

Large Language Models (LLMs) excel in handling general knowledge tasks, yet they struggle with user-specific personalization, such as understanding individual emotions, writing styles, and preferences. Personalized Large Language Models…

Artificial Intelligence · Computer Science 2025-09-23 Jiahong Liu , Zexuan Qiu , Zhongyang Li , Quanyu Dai , Wenhao Yu , Jieming Zhu , Minda Hu , Menglin Yang , Tat-Seng Chua , Irwin King

Recent research has explored using Large Language Models for recommendation tasks by transforming user interaction histories and item metadata into text prompts, then having the LLM produce rankings or recommendations. A promising approach…

Information Retrieval · Computer Science 2025-10-03 Bo Ma , LuYao Liu , Simon Lau , Chandler Yuan , and XueY Cui , Rosie Zhang

Multimodal recommender systems (MRS) integrate heterogeneous user and item data, such as text, images, and structured information, to enhance recommendation performance. The emergence of large language models (LLMs) introduces new…

Information Retrieval · Computer Science 2025-05-16 Alejo Lopez-Avila , Jinhua Du

Reinforcement learning (RL) is increasingly being used in the healthcare domain, particularly for the development of personalized health adaptive interventions. Inspired by the success of Large Language Models (LLMs), we are interested in…

Machine Learning · Computer Science 2025-01-14 Karine Karine , Benjamin M. Marlin

Sequential recommender systems have achieved significant success in modeling temporal user behavior but remain limited in capturing rich user semantics beyond interaction patterns. Large Language Models (LLMs) present opportunities to…

Recommendation systems play a critical role in enhancing user experience and engagement in various online platforms. Traditional methods, such as Collaborative Filtering (CF) and Content-Based Filtering (CBF), rely heavily on past user…

Information Retrieval · Computer Science 2025-01-22 Xiaochuan Xu , Zeqiu Xu , Peiyang Yu , Jiani Wang

An effective online recommendation system should jointly capture users' long-term and short-term preferences in both users' internal behaviors (from the target recommendation task) and external behaviors (from other tasks). However, it is…

Information Retrieval · Computer Science 2021-11-29 Ruobing Xie , Yalong Wang , Rui Wang , Yuanfu Lu , Yuanhang Zou , Feng Xia , Leyu Lin

We explore how large language models (LLMs) can enhance the proposal selection process at large user facilities, offering a scalable, consistent, and cost-effective alternative to traditional human review. Proposal selection depends on…

Artificial Intelligence · Computer Science 2025-12-12 Lijie Ding , Janell Thomson , Jon Taylor , Changwoo Do

Large Language Models (LLMs) have made significant strides in natural language processing and are increasingly being integrated into recommendation systems. However, their potential in educational recommendation systems has yet to be fully…

Information Retrieval · Computer Science 2025-04-14 Boxuan Ma , Md Akib Zabed Khan , Tianyuan Yang , Agoritsa Polyzou , Shin'ichi Konomi

Large Language Models (LLMs) have achieved remarkable success in various fields, prompting several studies to explore their potential in recommendation systems. However, these attempts have so far resulted in only modest improvements over…

Information Retrieval · Computer Science 2024-09-20 Junyi Chen , Lu Chi , Bingyue Peng , Zehuan Yuan

Large language models (LLMs) have achieved remarkable success across various domains, but effectively incorporating complex and potentially noisy user timeline data into LLMs remains a challenge. Current approaches often involve translating…

Computation and Language · Computer Science 2024-09-11 Lin Ning , Luyang Liu , Jiaxing Wu , Neo Wu , Devora Berlowitz , Sushant Prakash , Bradley Green , Shawn O'Banion , Jun Xie

The emergence of Large Language Models (LLMs) has achieved tremendous success in the field of Natural Language Processing owing to diverse training paradigms that empower LLMs to effectively capture intricate linguistic patterns and…

Information Retrieval · Computer Science 2024-07-04 Lemei Zhang , Peng Liu , Yashar Deldjoo , Yong Zheng , Jon Atle Gulla

Personalized news recommendation is highly time-sensitive, as user interests are often driven by emerging events, trending topics, and shifting real-world contexts. These dynamics make it essential to model not only users' long-term…

Information Retrieval · Computer Science 2026-03-12 Zhiyong Cheng , Yike Jin , Zhijie Zhang , Huilin Chen , Zhangling Duan , Meng Wang

With the rapid development of online services, recommender systems (RS) have become increasingly indispensable for mitigating information overload. Despite remarkable progress, conventional recommendation models (CRM) still have some…

Information Retrieval · Computer Science 2024-07-10 Jianghao Lin , Xinyi Dai , Yunjia Xi , Weiwen Liu , Bo Chen , Hao Zhang , Yong Liu , Chuhan Wu , Xiangyang Li , Chenxu Zhu , Huifeng Guo , Yong Yu , Ruiming Tang , Weinan Zhang

Large Language Models (LLMs) have made it possible for recommendation systems to interact with users in open-ended conversational interfaces. In order to personalize LLM responses, it is crucial to elicit user preferences, especially when…

Artificial Intelligence · Computer Science 2025-10-15 Ali Montazeralghaem , Guy Tennenholtz , Craig Boutilier , Ofer Meshi

Large language models (LLMs) have achieved remarkable progress in the field of natural language processing (NLP), demonstrating remarkable abilities in producing text that resembles human language for various tasks. This opens up new…

Information Retrieval · Computer Science 2024-06-05 Jianghao Lin , Xinyi Dai , Rong Shan , Bo Chen , Ruiming Tang , Yong Yu , Weinan Zhang