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Long-context agentic workflows have emerged as a defining use case for large language models, making attention efficiency critical for both inference speed and serving cost. Sparse attention addresses this challenge effectively, and…

Computation and Language · Computer Science 2026-03-13 Yushi Bai , Qian Dong , Ting Jiang , Xin Lv , Zhengxiao Du , Aohan Zeng , Jie Tang , Juanzi Li

Modeling multi-interests has arisen as a core problem in real-world RS. Current multi-interest retrieval methods pose three major challenges: 1) Interests, typically extracted from predefined external knowledge, are invariant. Failed to…

Information Retrieval · Computer Science 2025-08-14 Jialiang Shi , Yaguang Dou , Tian Qi

Learning effective feature interactions is central to modern recommender systems, yet remains challenging in industrial settings due to sparse multi-field inputs and ultra-long user behavior sequences. While recent scaling efforts have…

Information Retrieval · Computer Science 2026-02-13 Fangye Wang , Guowei Yang , Xiaojiang Zhou , Song Yang , Pengjie Wang

Hypergraphs model complex, non-binary relationships like co-authorships, social group memberships, and recommendations. Like traditional graphs, hypergraphs can grow large, posing challenges for storage, transmission, and query performance.…

Data Structures and Algorithms · Computer Science 2026-04-16 Enno Adler , Stefan Böttcher , Rita Hartel

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

Recommendation model interpretation aims to reveal the relationships between inputs, model internal representations and outputs to enhance the transparency, interpretability, and trustworthiness of recommendation systems. However, the…

Information Retrieval · Computer Science 2026-01-27 Jiayin Wang , Xiaoyu Zhang , Weizhi Ma , Zhiqiang Guo , Min Zhang

User interest modeling is critical for personalized news recommendation. Existing news recommendation methods usually learn a single user embedding for each user from their previous behaviors to represent their overall interest. However,…

Information Retrieval · Computer Science 2021-06-09 Tao Qi , Fangzhao Wu , Chuhan Wu , Peiru Yang , Yang Yu , Xing Xie , Yongfeng Huang

Long-context language modeling is commonly framed as a scalability challenge of token-level attention, yet local-to-global information structuring remains largely implicit in existing approaches. Drawing on cognitive theories of discourse…

Computation and Language · Computer Science 2026-04-10 Xiangyu Zeng , Qi Xu , Yunke Wang , Chang Xu

Recently, some span-based methods have achieved encouraging performances for joint aspect-sentiment analysis, which first extract aspects (aspect extraction) by detecting aspect boundaries and then classify the span-level sentiments…

Computation and Language · Computer Science 2022-08-25 Wei Chen , Jinglong Du , Zhao Zhang , Fuzhen Zhuang , Zhongshi He

Slate recommendation, which presents users with a ranked item list in a single display, is ubiquitous across mainstream online platforms. Recent advances in generative models have shown significant potential for this task via autoregressive…

Information Retrieval · Computer Science 2026-02-25 Yunsheng Pang , Zijian Liu , Yudong Li , Shaojie Zhu , Zijian Luo , Chenyun Yu , Sikai Wu , Shichen Shen , Cong Xu , Bin Wang , Kai Jiang , Hongyong Yu , Chengxiang Zhuo , Zang Li

Cross-Domain Sequential Recommendation (CDSR) predicts user behavior by leveraging historical interactions across multiple domains, focusing on modeling cross-domain preferences through intra- and inter-sequence item relationships. Inspired…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Wangyu Wu , Zhenhong Chen , Siqi Song , Xianglin Qiu , Xiaowei Huang , Fei Ma , Jimin Xiao

Modeling user interests is crucial in real-world recommender systems. In this paper, we present a new user interest representation model for personalized recommendation. Specifically, the key novelty behind our model is that it explicitly…

Information Retrieval · Computer Science 2020-11-12 Shuai Zhang , Huoyu Liu , Aston Zhang , Yue Hu , Ce Zhang , Yumeng Li , Tanchao Zhu , Shaojian He , Wenwu Ou

Click-Through Rate (CTR) prediction plays an important role in many industrial applications, and recently a lot of attention is paid to the deep interest models which use attention mechanism to capture user interests from historical…

Information Retrieval · Computer Science 2021-05-24 Keke Zhao , Xing Zhao , Qi Cao , Linjian Mo

DeepSeek Sparse Attention (DSA) sets the state of the art for fine-grained inference-time sparse attention by introducing a learned token-wise indexer that scores every prefix token and selects the most relevant ones for the main attention.…

Machine Learning · Computer Science 2026-05-11 Ruijie Zhou , Fanxu Meng , Yufei Xu , Tongxuan Liu , Guangming Lu , Muhan Zhang , Wenjie Pei

In this era of information explosion, a personalized recommendation system is convenient for users to get information they are interested in. To deal with billions of users and items, large-scale online recommendation services usually…

Information Retrieval · Computer Science 2025-09-04 Xu Yuan , Chen Xu , Qiwei Chen , Chao Li , Junfeng Ge , Wenwu Ou

The goal of sequential recommendation (SR) is to predict a user's potential interested items based on her/his historical interaction sequences. Most existing sequential recommenders are developed based on ID features, which, despite their…

Information Retrieval · Computer Science 2023-10-24 Jinpeng Wang , Ziyun Zeng , Yunxiao Wang , Yuting Wang , Xingyu Lu , Tianxiang Li , Jun Yuan , Rui Zhang , Hai-Tao Zheng , Shu-Tao Xia

Hierarchical Sparse Coding (HSC) is a powerful model to efficiently represent multi-dimensional, structured data such as images. The simplest solution to solve this computationally hard problem is to decompose it into independent layer-wise…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Victor Boutin , Angelo Franciosini , Franck Ruffier , Laurent Perrinet

The rapid development of large climate models has created the requirement of storing and transferring massive atmospheric data worldwide. Therefore, data compression is essential for meteorological research, but an efficient compression…

Machine Learning · Computer Science 2024-11-12 Zhewen Xu , Baoxiang Pan , Hongliang Li , Xiaohui Wei

Image based social networks are among the most popular social networking services in recent years. With tremendous images uploaded everyday, understanding users' preferences on user-generated images and making recommendations have become an…

Social and Information Networks · Computer Science 2021-03-05 Le Wu , Lei Chen , Richang Hong , Yanjie Fu , Xing Xie , Meng Wang

Temporal Action Detection (TAD) is an essential and challenging topic in video understanding, aiming to localize the temporal segments containing human action instances and predict the action categories. The previous works greatly rely upon…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Jiannan Wu , Peize Sun , Shoufa Chen , Jiewen Yang , Zihao Qi , Lan Ma , Ping Luo