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A key characteristic of deep recommendation models is the immense memory requirements of their embedding tables. These embedding tables can often reach hundreds of gigabytes which increases hardware requirements and training cost. A common…

Large Language Models (LLMs) represent a promising frontier for recommender systems, yet their development has been impeded by the absence of predictable scaling laws, which are crucial for guiding research and optimizing resource…

Information Retrieval · Computer Science 2026-02-16 Benyu Zhang , Qiang Zhang , Jianpeng Cheng , Hong-You Chen , Qifei Wang , Wei Sun , Shen Li , Jia Li , Jiahao Wu , Xiangjun Fan , Hong Yan

Large Language Models (LLMs) have become a cornerstone in Natural Language Processing (NLP), achieving impressive performance in text generation. Their token-level representations capture rich, human-aligned semantics. However, pooling…

Computation and Language · Computer Science 2025-09-25 Benedikt Roth , Stephan Rappensperger , Tianming Qiu , Hamza Imamović , Julian Wörmann , Hao Shen

Recent studies increasingly explore Large Language Models (LLMs) as a new paradigm for recommendation systems due to their scalability and world knowledge. However, existing work has three key limitations: (1) most efforts focus on…

The growing need to integrate information from a large number of diverse sources poses significant scalability challenges for data integration systems. These systems often rely on manually written schema mappings, which are complex,…

Databases · Computer Science 2025-06-02 Christopher Buss , Mahdis Safari , Arash Termehchy , Stefan Lee , David Maier

Large Language Models (LLMs) are increasingly being applied across various domains, including code-related tasks such as code translation. Previous studies have explored using LLMs for translating code between different programming…

Software Engineering · Computer Science 2026-05-05 Soumit Kanti Saha , Fazle Rabbi , Song Wang , Jinqiu Yang

Sequential Recommendation (SR) aims to leverage the sequential patterns in users' historical interactions to accurately track their preferences. However, the primary reliance of existing SR methods on collaborative data results in…

Information Retrieval · Computer Science 2025-04-29 Yuhao Wang , Junwei Pan , Pengyue Jia , Wanyu Wang , Maolin Wang , Zhixiang Feng , Xiaotian Li , Jie Jiang , Xiangyu Zhao

Session-based recommendation (SR) models aim to recommend items to anonymous users based on their behavior during the current session. While various SR models in the literature utilize item sequences to predict the next item, they often…

Information Retrieval · Computer Science 2025-08-29 Jyoti Narwariya , Priyanka Gupta , Muskan Gupta , Jyotsana Khatri , Lovekesh Vig

Large language models (LLMs) have shown remarkable promise but remain challenging to continually improve through traditional finetuning, particularly when integrating capabilities from other specialized LLMs. Popular methods like ensemble…

Computation and Language · Computer Science 2025-06-02 Zhenglun Kong , Zheng Zhan , Shiyue Hou , Yifan Gong , Xin Meng , Pengwei Sui , Peiyan Dong , Xuan Shen , Zifeng Wang , Pu Zhao , Hao Tang , Stratis Ioannidis , Yanzhi Wang

The training paradigm integrating large language models (LLM) is gradually reshaping sequential recommender systems (SRS) and has shown promising results. However, most existing LLM-enhanced methods rely on rich textual information on the…

Information Retrieval · Computer Science 2024-10-17 Dugang Liu , Shenxian Xian , Xiaolin Lin , Xiaolian Zhang , Hong Zhu , Yuan Fang , Zhen Chen , Zhong Ming

Large Language Models (LLMs) have been integrated into recommender systems to enhance user behavior comprehension. The Retrieval Augmented Generation (RAG) technique is further incorporated into these systems to retrieve more relevant items…

Information Retrieval · Computer Science 2025-03-27 Sichun Luo , Jian Xu , Xiaojie Zhang , Linrong Wang , Sicong Liu , Hanxu Hou , Linqi Song

Sequential recommendation (SR) systems have evolved significantly over the past decade, transitioning from traditional collaborative filtering to deep learning approaches and, more recently, to large language models (LLMs). While the…

Information Retrieval · Computer Science 2024-12-31 Yucong Luo , Qitao Qin , Hao Zhang , Mingyue Cheng , Ruiran Yan , Kefan Wang , Jie Ouyang

Large language models (LLMs) face significant token efficiency bottlenecks in code generation and logical reasoning tasks, a challenge that directly impacts inference cost and model interpretability. This paper proposes a formal framework…

Artificial Intelligence · Computer Science 2025-02-03 Lumen AI , Tengzhou No. 1 Middle School , Shihao Ji , Zihui Song , Fucheng Zhong , Jisen Jia , Zhaobo Wu , Zheyi Cao , Tianhao Xu

Integrating product catalogs and user behavior into LLMs can enhance recommendations with broad world knowledge, but the scale of real-world item catalogs, often containing millions of discrete item identifiers (Item IDs), poses a…

Information Retrieval · Computer Science 2025-09-05 Anushya Subbiah , Vikram Aggarwal , James Pine , Steffen Rendle , Krishna Sayana , Kun Su

Explainable recommender systems are designed to elucidate the explanation behind each recommendation, enabling users to comprehend the underlying logic. Previous works perform rating prediction and explanation generation in a multi-task…

Information Retrieval · Computer Science 2025-04-09 Shijie Liu , Ruixing Ding , Weihai Lu , Jun Wang , Mo Yu , Xiaoming Shi , Wei Zhang

Large Language Models (LLMs) for Recommendation (LLM4Rec) is a promising research direction that has demonstrated exceptional performance in this field. However, its inability to capture real-time user preferences greatly limits the…

Information Retrieval · Computer Science 2025-02-26 Zheqi Lv , Tianyu Zhan , Wenjie Wang , Xinyu Lin , Shengyu Zhang , Wenqiao Zhang , Jiwei Li , Kun Kuang , Fei Wu

While large language models (LLMs) demonstrate impressive capabilities across numerous applications, their robustness remains a critical concern. This paper is motivated by a specific vulnerability: the order sensitivity of LLMs. This…

Machine Learning · Computer Science 2025-05-22 Beni Egressy , Jan Stühmer

Recommender systems play a pivotal role in providing relevant content to users. With the rapid development of large language models (LLMs), researchers have begun utilizing LLMs to build more powerful recommender systems. However, existing…

Information Retrieval · Computer Science 2025-06-26 Haochen Zhang , Tianyi Zhang , Junze Yin , Oren Gal , Anshumali Shrivastava , Vladimir Braverman

Sequential Recommendation (SR) learns user preferences from their historical interaction sequences and provides personalized suggestions. In real-world scenarios, most items exhibit sparse interactions, known as the tail-item problem. This…

Information Retrieval · Computer Science 2026-04-07 Zhifu Wei , Yizhou Dang , Guibing Guo , Chuang Zhao , Zhu Sun

Large Language Models (LLMs) have attracted significant attention in recommender systems for their excellent world knowledge capabilities. However, existing methods that rely on Euclidean space struggle to capture the rich hierarchical…

Information Retrieval · Computer Science 2025-04-22 Wentao Cheng , Zhida Qin , Zexue Wu , Pengzhan Zhou , Tianyu Huang