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Sequential recommendation plays a critical role in modern online platforms such as e-commerce, advertising, and content streaming, where accurately predicting users' next interactions is essential for personalization. Recent…

信息检索 · 计算机科学 2026-03-04 Haofeng Huang , Ling Gai

To effectively use large language models (LLMs) for real-world queries, it is imperative that they generalize to the long-tail distribution, i.e. rare examples where models exhibit low confidence. In this work, we take the first step…

计算与语言 · 计算机科学 2024-10-07 Huihan Li , Yuting Ning , Zeyi Liao , Siyuan Wang , Xiang Lorraine Li , Ximing Lu , Wenting Zhao , Faeze Brahman , Yejin Choi , Xiang Ren

Retrieval augmented generation (RAG) exhibits outstanding performance in promoting the knowledge capabilities of large language models (LLMs) with retrieved documents related to user queries. However, RAG only focuses on improving the…

信息检索 · 计算机科学 2024-06-25 Dongyang Li , Junbing Yan , Taolin Zhang , Chengyu Wang , Xiaofeng He , Longtao Huang , Hui Xue , Jun Huang

The imbalanced distribution of long-tailed data presents a considerable challenge for deep learning models, as it causes them to prioritize the accurate classification of head classes but largely disregard tail classes. The biased decision…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Mengke Li , Zhikai Hu , Yang Lu , Weichao Lan , Yiu-ming Cheung , Hui Huang

Language Models (LMs) encode substantial knowledge in their parameters, yet it remains unclear how to transfer such knowledge in a fine-grained manner, namely parametric knowledge transfer (PKT). A central challenge is to make cross-scale…

计算与语言 · 计算机科学 2026-05-19 Jian Gu , Aldeida Aleti , Chunyang Chen , Hongyu Zhang

Sequential recommendation systems aim to predict users' next likely interaction based on their history. However, these systems face data sparsity and cold-start problems. Utilizing data from other domains, known as multi-domain methods, is…

信息检索 · 计算机科学 2025-02-20 Zuoli Tang , Zhaoxin Huan , Zihao Li , Xiaolu Zhang , Jun Hu , Chilin Fu , Jun Zhou , Lixin Zou , Chenliang Li

Sequential user behavior modeling plays a crucial role in online user-oriented services, such as product purchasing, news feed consumption, and online advertising. The performance of sequential modeling heavily depends on the scale and…

机器学习 · 计算机科学 2020-11-03 Jianwen Yin , Chenghao Liu , Weiqing Wang , Jianling Sun , Steven C. H. Hoi

Large language models (LLMs) are trained on web-scale corpora that exhibit steep power-law distributions, in which the distribution of knowledge is highly long-tailed, with most appearing infrequently. While scaling has improved…

计算与语言 · 计算机科学 2026-02-19 Sanket Badhe , Deep Shah , Nehal Kathrotia

Large Language Model-based Recommender Systems (LRSs) have recently emerged as a new paradigm in sequential recommendation by directly adopting LLMs as backbones. While LRSs demonstrate strong knowledge utilization and instruction-following…

信息检索 · 计算机科学 2026-03-16 Jiaming Zhang , Yuyuan Li , Xiaohua Feng , Li Zhang , Longfei Li , Jun Zhou , Chaochao Chen

Recommender Systems (RS) play a pivotal role in boosting user satisfaction by providing personalized product suggestions in domains such as e-commerce and entertainment. This study examines the integration of multimodal data text and audio…

信息检索 · 计算机科学 2024-09-16 Zezheng Qin

Transferring knowledge across many streaming processes remains an uncharted territory in the existing literature and features unique characteristics: no labelled instance of the target domain, covariate shift of source and target domain,…

机器学习 · 计算机科学 2019-10-22 Mahardhika Pratama , Marcus de Carvalho , Renchunzi Xie , Edwin Lughofer , Jie Lu

There is a growing interest in utilizing large-scale language models (LLMs) to advance next-generation Recommender Systems (RecSys), driven by their outstanding language understanding and in-context learning capabilities. In this scenario,…

信息检索 · 计算机科学 2025-08-18 Haohao Qu , Wenqi Fan , Zihuai Zhao , Qing Li

Large language models (LLMs) have demonstrated their significant potential to be applied for addressing various application tasks. However, traditional recommender systems continue to face great challenges such as poor interactivity and…

信息检索 · 计算机科学 2023-04-05 Yunfan Gao , Tao Sheng , Youlin Xiang , Yun Xiong , Haofen Wang , Jiawei Zhang

Sequential recommendation systems model dynamic preferences of users based on their historical interactions with platforms. Despite recent progress, modeling short-term and long-term behavior of users in such systems is nontrivial and…

信息检索 · 计算机科学 2021-07-07 Mehrnaz Amjadi , Seyed Danial Mohseni Taheri , Theja Tulabandhula

Conventional Sequential Recommender Systems (SRS) typically assign unique hash IDs (HID) to construct item embeddings, which mainly capture collaborative signals from historical user-item interactions. However, such embeddings are…

信息检索 · 计算机科学 2026-05-29 Ziwei Liu , Yejing Wang , Wanyu Wang , Wang Zejian , Qidong Liu , Zijian Zhang , Chong Chen , Wei Huang , Xiangyu Zhao

The automatic verbalization of structured knowledge is a key task for making knowledge graphs accessible to non-expert users and supporting retrieval-augmented generation systems. Although recent advances in Data-to-Text generation have…

Generative recommendation models sequence generation to produce items end-to-end, but training from behavioral logs often provides weak supervision on underlying user intent. Although Large Language Models (LLMs) offer rich semantic priors…

信息检索 · 计算机科学 2026-02-26 Jie Jiang , Hongbo Tang , Wenjie Wu , Yangru Huang , Zhenmao Li , Qian Li , Changping Wang , Jun Zhang , Huan Yu

Knowledge Tracing (KT) diagnoses students' concept mastery through continuous learning state monitoring in education.Existing methods primarily focus on studying behavioral sequences based on ID or textual information.While existing methods…

人工智能 · 计算机科学 2026-02-27 Xingcheng Fu , Shengpeng Wang , Yisen Gao , Xianxian Li , Chunpei Li , Qingyun Sun , Dongran Yu

The extensive world knowledge and powerful reasoning capabilities of large language models (LLMs) have attracted significant attention in recommendation systems (RS). Specifically, The chain of thought (CoT) has been shown to improve the…

信息检索 · 计算机科学 2025-08-22 Yu Xia , Rui Zhong , Zeyu Song , Wei Yang , Junchen Wan , Qingpeng Cai , Chi Lu , Peng Jiang

Recent advancements in Multimodal Large Language Models (MLLMs) have demonstrated significant potential in recommendation systems. However, the effective application of MLLMs to multimodal sequential recommendation remains unexplored: A)…

信息检索 · 计算机科学 2025-12-25 Haoyu Wang , Yitong Wang , Jining Wang