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Collaborative filtering often suffers from sparsity and cold start problems in real recommendation scenarios, therefore, researchers and engineers usually use side information to address the issues and improve the performance of recommender…

信息检索 · 计算机科学 2019-01-28 Hongwei Wang , Fuzheng Zhang , Miao Zhao , Wenjie Li , Xing Xie , Minyi Guo

To reduce annotation labor associated with object detection, an increasing number of studies focus on transferring the learned knowledge from a labeled source domain to another unlabeled target domain. However, existing methods assume that…

计算机视觉与模式识别 · 计算机科学 2021-07-01 Xingxu Yao , Sicheng Zhao , Pengfei Xu , Jufeng Yang

In order to model the evolution of user preference, we should learn user/item embeddings based on time-ordered item purchasing sequences, which is defined as Sequential Recommendation (SR) problem. Existing methods leverage sequential…

信息检索 · 计算机科学 2021-08-24 Ziwei Fan , Zhiwei Liu , Jiawei Zhang , Yun Xiong , Lei Zheng , Philip S. Yu

In the real world, users always have multiple interests while surfing different services to enrich their daily lives, e.g., watching hot short videos/live streamings. To describe user interests precisely for a better user experience, the…

信息检索 · 计算机科学 2025-03-18 Yu Liu , Hanbin Jiang , Lei Zhu , Yu Zhang , Yuqi Mao , Jiangxia Cao , Shuchao Pang

In the digital era, users typically interact with diverse items across multiple domains (e.g., e-commerce, streaming platforms, and social networks), generating intricate heterogeneous interaction graphs. Leveraging multi-domain data can…

信息检索 · 计算机科学 2025-07-11 Hengyu Zhang , Chunxu Shen , Xiangguo Sun , Jie Tan , Yu Rong , Chengzhi Piao , Hong Cheng , Lingling Yi

To alleviate data sparsity and cold-start problems of traditional recommender systems (RSs), incorporating knowledge graphs (KGs) to supplement auxiliary information has attracted considerable attention recently. However, simply integrating…

信息检索 · 计算机科学 2022-01-04 Yankai Chen , Yaming Yang , Yujing Wang , Jing Bai , Xiangchen Song , Irwin King

Collaborative recommendation fundamentally involves learning high-quality user and item representations from interaction data. Recently, graph convolution networks (GCNs) have advanced the field by utilizing high-order connectivity patterns…

信息检索 · 计算机科学 2024-12-30 Jiajia Chen , Jiancan Wu , Jiawei Chen , Chongming Gao , Yong Li , Xiang Wang

Spatial Crowdsourcing (SC) is gaining traction in both academia and industry, with tasks on SC platforms becoming increasingly complex and requiring collaboration among workers with diverse skills. Recent research works address complex…

人工智能 · 计算机科学 2024-10-22 Yong Zhao , Zhengqiu Zhu , Chen Gao , En Wang , Jincai Huang , Fei-Yue Wang

Cross-domain CTR (CDCTR) prediction is an important research topic that studies how to leverage meaningful data from a related domain to help CTR prediction in target domain. Most existing CDCTR works design implicit ways to transfer…

信息检索 · 计算机科学 2024-02-20 Xu Chen , Zida Cheng , Jiangchao Yao , Chen Ju , Weilin Huang , Jinsong Lan , Xiaoyi Zeng , Shuai Xiao

Recommender systems easily face the issue of user preference shifts. User representations will become out-of-date and lead to inappropriate recommendations if user preference has shifted over time. To solve the issue, existing work focuses…

信息检索 · 计算机科学 2023-03-29 Wenjie Wang , Xinyu Lin , Liuhui Wang , Fuli Feng , Yunshan Ma , Tat-Seng Chua

In today's digital landscape, Deep Recommender Systems (DRS) play a crucial role in navigating and customizing online content for individual preferences. However, conventional methods, which mainly depend on single recommendation task,…

信息检索 · 计算机科学 2025-03-03 Xiangyu Zhao , Yichao Wang , Bo Chen , Jingtong Gao , Yuhao Wang , Xiaopeng Li , Pengyue Jia , Qidong Liu , Huifeng Guo , Ruiming Tang

Recently, graph neural networks (GNNs) have been successfully applied to recommender systems. In recommender systems, the user's feedback behavior on an item is usually the result of multiple factors acting at the same time. However, a…

信息检索 · 计算机科学 2020-07-14 Dongbo Xi , Fuzhen Zhuang , Yongchun Zhu , Pengpeng Zhao , Xiangliang Zhang , Qing He

Cross-Domain Sequential Recommendation (CDSR) plays a crucial role in modern consumer electronics and e-commerce platforms, where users interact with diverse services such as books, movies, and online retail products. These systems must…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Wangyu Wu , Xuhang Chen , Zhenhong Chen , Jing-En Jiang , Kim-Fung Tsang , Xiaowei Huang , Fei Ma , Jimin Xiao

Notification recommendation systems are critical to driving user engagement on professional platforms like LinkedIn. Designing such systems involves integrating heterogeneous signals across domains, capturing temporal dynamics, and…

In recent years, DL has developed rapidly, and personalized services are exploring using DL algorithms to improve the performance of the recommendation system. For personalized services, a successful recommendation consists of two parts:…

信息检索 · 计算机科学 2023-10-19 Jie Zhou , Qian Yu

Conversational Recommender System (CRS), which aims to recommend high-quality items to users through interactive conversations, has gained great research interest recently. A CRS is usually composed of a recommendation module and a…

计算与语言 · 计算机科学 2022-10-10 Lingzhi Wang , Huang Hu , Lei Sha , Can Xu , Kam-Fai Wong , Daxin Jiang

Collaborative filtering (CF) aims to predict users' ratings on items according to historical user-item preference data. In many real-world applications, preference data are usually sparse, which would make models overfit and fail to give…

机器学习 · 计算机科学 2012-10-29 Zhongqi Lu , Erheng Zhong , Lili Zhao , Wei Xiang , Weike Pan , Qiang Yang

Recommendation systems focus on helping users find items of interest in the situations of information overload, where users' preferences are typically estimated by the past observed behaviors. In contrast, conversational recommendation…

计算与语言 · 计算机科学 2022-03-29 Ting-Chun Wang , Shang-Yu Su , Yun-Nung Chen

Recommender systems are essential for guiding users through the vast and diverse landscape of digital content by delivering personalized and relevant suggestions. However, improving both personalization and interpretability remains a…

信息检索 · 计算机科学 2025-08-05 Danial Ebrat , Tina Aminian , Sepideh Ahmadian , Luis Rueda

Sequential recommendation is an extensively explored approach to capturing users' evolving preferences based on past interactions, aimed at predicting their next likely choice. Despite significant advancements in this domain, including…

信息检索 · 计算机科学 2025-04-15 Kowei Shih , Yi Han , Li Tan