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As industrial recommender systems enter a scaling-driven regime, Transformer architectures have become increasingly attractive for scaling models towards larger capacity and longer sequence. However, existing Transformer-based…

Information Retrieval · Computer Science 2026-02-17 Xu Huang , Hao Zhang , Zhifang Fan , Yunwen Huang , Zhuoxing Wei , Zheng Chai , Jinan Ni , Yuchao Zheng , Qiwei Chen

Transformer-based sequential recommendation (TSR) models have shown superior performance in recommendation systems, where the quality of item representations plays a crucial role. Classical representation methods integrate item features…

Information Retrieval · Computer Science 2025-04-22 Hao Deng , Haibo Xing , Kanefumi Matsuyama , Yulei Huang , Jinxin Hu , Hong Wen , Jia Xu , Zulong Chen , Yu Zhang , Xiaoyi Zeng , Jing Zhang

Incorporating item-side information, such as category and brand, into sequential recommendation is a well-established and effective approach for improving performance. However, despite significant advancements, current models are generally…

Information Retrieval · Computer Science 2026-01-01 Jie Luo , Wenyu Zhang , Xinming Zhang , Yuan Fang

Although sophisticated sequence modeling paradigms have achieved remarkable success in recommender systems, the information capacity of hand-crafted sequential features constrains the performance upper bound. To better enhance user…

Information Retrieval · Computer Science 2026-04-13 Xinchun Li , Ning Zhang , Qianqian Yang , Fei Teng , Wenlin Zhao , Huizhi Yang , Heng Shi , Linlan Chen , Yixin Wu , Zhen Wang , Daiye Hou , Fei Qin , Lele Yu , Yaocheng Tan

Recommender systems have historically developed along two largely independent paradigms: feature interaction models for modeling correlations among multi-field categorical features, and sequential models for capturing user behavior dynamics…

Information Retrieval · Computer Science 2026-04-16 Yifeng Zhou , Yuehong Hu , Zhixiang Feng , Junwei Pan , Kaihui Wu , Hanyong Li , Shangyu Zhang , Shudong Huang , Zhangbin Zhu , Chengguo Yin , Haijie Gu , Jie Jiang

Segment Anything Model (SAM) enable scalable medical image segmentation but suffer from inference-time instability when deployed as a frozen backbone. In practice, bounding-box prompts often contain localization errors, and fixed threshold…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Ke Wu , Shiqi Chen , Yiheng Zhong , Hengxian Liu , Yingxue Su , Yifang Wang , Junhao Jin , Guangyu Ren

In recent years, numerous Transformer-based models have been applied to long-term time-series forecasting (LTSF) tasks. However, recent studies with linear models have questioned their effectiveness, demonstrating that simple linear layers…

Machine Learning · Computer Science 2024-08-20 Jiaheng Yin , Zhengxin Shi , Jianshen Zhang , Xiaomin Lin , Yulin Huang , Yongzhi Qi , Wei Qi

Industrial large-scale recommendation models (LRMs) face the challenge of jointly modeling long-range user behavior sequences and heterogeneous non-sequential features under strict efficiency constraints. However, most existing…

Information Retrieval · Computer Science 2026-01-26 Yunwen Huang , Shiyong Hong , Xijun Xiao , Jinqiu Jin , Xuanyuan Luo , Zhe Wang , Zheng Chai , Shikang Wu , Yuchao Zheng , Jingjian Lin

With the rapid development of recommender systems, there is increasing side information that can be employed to improve the recommendation performance. Specially, we focus on the utilization of the associated \emph{textual data} of items…

Information Retrieval · Computer Science 2024-02-29 Lanling Xu , Zhen Tian , Bingqian Li , Junjie Zhang , Jinpeng Wang , Mingchen Cai , Wayne Xin Zhao

Modeling user preferences has been mainly addressed by looking at users' interaction history with the different elements available in the system. Tailoring content to individual preferences based on historical data is the main goal of…

Machine Learning · Computer Science 2024-12-11 Pablo Zivic , Hernan Vazquez , Jorge Sanchez

Text-based collaborative filtering (TCF) has emerged as the prominent technique for text and news recommendation, employing language models (LMs) as text encoders to represent items. However, the current landscape of TCF models mainly…

Information Retrieval · Computer Science 2025-12-16 Ruyu Li , Wenhao Deng , Yu Cheng , Zheng Yuan , Jiaqi Zhang , Fajie Yuan

In industrial recommendation systems, pre-ranking models based on deep neural networks (DNNs) commonly adopt a sequential execution framework: feature fetching and model forward computation are triggered only after receiving candidates from…

Machine Learning · Computer Science 2025-11-21 Zhi Kou , Xiang-Rong Sheng , Shuguang Han , Zhishan Zhao , Yueyao Cheng , Han Zhu , Jian Xu , Bo Zheng

Side information fusion for sequential recommendation (SR) aims to effectively leverage various side information to enhance the performance of next-item prediction. Most state-of-the-art methods build on self-attention networks and focus on…

Information Retrieval · Computer Science 2022-04-26 Yueqi Xie , Peilin Zhou , Sunghun Kim

Side-information Integrated Sequential Recommendation (SISR) benefits from auxiliary item information to infer hidden user preferences, which is particularly effective for sparse interactions and cold-start scenarios. However, existing…

Information Retrieval · Computer Science 2025-05-21 Hye-young Kim , Minjin Choi , Sunkyung Lee , Ilwoong Baek , Jongwuk Lee

Feature interaction is a core ingredient in ranking models for large-scale recommender systems, yet making it both expressive and efficiently scalable remains challenging. Exhaustive pairwise interaction is powerful but incurs quadratic…

Information Retrieval · Computer Science 2026-01-27 Kaiyuan Li , Yongxiang Tang , Wenzheng Shu , Yanxiang Zeng , Chao Wang , Yanhua Cheng , Xialong Liu , Peng Jiang

Knowledge graphs (KGs) and multimodal item information, which respectively capture relational and attribute features, play a crucial role in improving recommender system accuracy. Recent studies have attempted to integrate them via…

Information Retrieval · Computer Science 2025-07-15 Jie Guo , Jiahao Jiang , Ziyuan Guo , Bin Song , Yue Sun

In Semantic-ID (SID) based generative recommendation, each item is represented as a sequence of discrete codes, and an autoregressive model is trained to generate the SID sequence of the next item; top-K performance is then measured by…

Information Retrieval · Computer Science 2026-05-26 Qian Zhang , Lech Szymanski , Haibo Zhang , Jeremiah D. Deng

Query classification, including multiple subtasks such as intent and category prediction, is vital to e-commerce applications. E-commerce queries are usually short and lack context, and the information between labels cannot be used,…

Computation and Language · Computer Science 2025-06-27 Chunyuan Yuan , Chong Zhang , Zheng Fang , Ming Pang , Xue Jiang , Changping Peng , Zhangang Lin , Ching Law

Generative recommendation models can model user behavior as sequences of events and provide a shared backbone for multiple recommendation tasks. In production, however, pre-training gains do not automatically translate into downstream…

Information Retrieval · Computer Science 2026-05-25 Qiuling Xu , Ko-Jen Hsiao , Moumita Bhattacharya

Modeling the sequential correlation of users' historical interactions is essential in sequential recommendation. However, the majority of the approaches mainly focus on modeling the \emph{intra-sequence} item correlation within each…

Information Retrieval · Computer Science 2020-04-30 Feng Liu , Weiwen Liu , Xutao Li , Yunming Ye
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