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The cold-start recommendation is an urgent problem in contemporary online applications. It aims to provide users whose behaviors are literally sparse with as accurate recommendations as possible. Many data-driven algorithms, such as the…

Information Retrieval · Computer Science 2021-10-19 Xiaowen Huang , Jitao Sang , Jian Yu , Changsheng Xu

Bundle recommendation aims to recommend the user a bundle of items as a whole. Nevertheless, they usually neglect the diversity of the user's intents on adopting items and fail to disentangle the user's intents in representations. In the…

Information Retrieval · Computer Science 2022-08-26 Sen Zhao , Wei Wei , Ding Zou , Xianling Mao

In practical scenarios, the effectiveness of sequential recommendation systems is hindered by the user cold-start problem, which arises due to limited interactions for accurately determining user preferences. Previous studies have attempted…

Information Retrieval · Computer Science 2023-07-27 Mohammmadmahdi Maheri , Reza Abdollahzadeh , Bardia Mohammadi , Mina Rafiei , Jafar Habibi , Hamid R. Rabiee

Industrial recommendation systems are typically composed of multiple stages, including retrieval, ranking, and blending. The retrieval stage plays a critical role in generating a high-recall set of candidate items that covers a wide range…

Information Retrieval · Computer Science 2025-07-01 Zhibo Fan , Hongtao Lin , Haoyu Chen , Bowen Deng , Hedi Xia , Yuke Yan , James Li

Cross domain recommender systems have been increasingly valuable for helping consumers identify useful items in different applications. However, existing cross-domain models typically require large number of overlap users, which can be…

Information Retrieval · Computer Science 2021-04-21 Pan Li , Alexander Tuzhilin

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…

Information Retrieval · Computer Science 2019-01-28 Hongwei Wang , Fuzheng Zhang , Miao Zhao , Wenjie Li , Xing Xie , Minyi Guo

Recommendation systems rely on historical clicks to learn user interests and provide appropriate items. However, current studies tend to treat clicks equally, which may ignore the assorted intensities of user interests in different clicks.…

Information Retrieval · Computer Science 2023-09-29 Chong Liu , Xiaoyang Liu , Lixin Zhang , Feng Xia , Leyu Lin

A well-informed recommendation framework could not only help users identify their interested items, but also benefit the revenue of various online platforms (e.g., e-commerce, social media). Traditional recommendation models usually assume…

Information Retrieval · Computer Science 2022-03-29 Wei Wei , Chao Huang , Lianghao Xia , Yong Xu , Jiashu Zhao , Dawei Yin

Large-scale e-commercial platforms in the real-world usually contain various recommendation scenarios (domains) to meet demands of diverse customer groups. Multi-Domain Recommendation (MDR), which aims to jointly improve recommendations on…

Information Retrieval · Computer Science 2023-03-08 Linhao Luo , Yumeng Li , Buyu Gao , Shuai Tang , Sinan Wang , Jiancheng Li , Tanchao Zhu , Jiancai Liu , Zhao Li , Shirui Pan

Graph neural networks (GNNs) have become crucial in multimodal recommendation tasks because of their powerful ability to capture complex relationships between neighboring nodes. However, increasing the number of propagation layers in GNNs…

Multimedia · Computer Science 2024-11-05 Feng Mo , Lin Xiao , Qiya Song , Xieping Gao , Eryao Liang

With the increase of content pages and interactive buttons in online services such as online-shopping and video-watching websites, industrial-scale recommender systems face challenges in multi-domain and multi-task recommendations. The core…

Information Retrieval · Computer Science 2023-06-28 Jianxin Chang , Chenbin Zhang , Yiqun Hui , Dewei Leng , Yanan Niu , Yang Song , Kun Gai

Shared-account Cross-domain Sequential recommendation (SCSR) is the task of recommending the next item based on a sequence of recorded user behaviors, where multiple users share a single account, and their behaviours are available in…

Information Retrieval · Computer Science 2021-05-10 Lei Guo , Li Tang , Tong Chen , Lei Zhu , Quoc Viet Hung Nguyen , Hongzhi Yin

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…

Computer Vision and Pattern Recognition · Computer Science 2021-07-01 Xingxu Yao , Sicheng Zhao , Pengfei Xu , Jufeng Yang

A recommender system predicts users' potential interests in items, where the core is to learn user/item embeddings. Nevertheless, it suffers from the data-sparsity issue, which the cross-domain recommendation can alleviate. However, most…

Information Retrieval · Computer Science 2021-11-17 Chen Wang , Yueqing Liang , Zhiwei Liu , Tao Zhang , Philip S. Yu

Session-based recommendation aims to predict a user's next action based on previous actions in the current session. The major challenge is to capture authentic and complete user preferences in the entire session. Recent work utilizes graph…

Information Retrieval · Computer Science 2022-01-11 Jiayan Guo , Yaming Yang , Xiangchen Song , Yuan Zhang , Yujing Wang , Jing Bai , Yan Zhang

Multi-interest candidate matching plays a pivotal role in personalized recommender systems, as it captures diverse user interests from their historical behaviors. Most existing methods utilize attention mechanisms to generate interest…

Information Retrieval · Computer Science 2025-02-14 Yankun Le , Haoran Li , Baoyuan Ou , Yingjie Qin , Zhixuan Yang , Ruilong Su , Fu Zhang

Cross-Domain Recommendation (CDR) has been popularly studied to utilize different domain knowledge to solve the cold-start problem in recommender systems. Most of the existing CDR models assume that both the source and target domains share…

Information Retrieval · Computer Science 2022-05-30 Weiming Liu , Xiaolin Zheng , Mengling Hu , Chaochao Chen

Brain tumor represents one of the most fatal cancers around the world, and is very common in children and the elderly. Accurate identification of the type and grade of tumor in the early stages plays an important role in choosing a precise…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Dunyuan Xu , Xi Wang , Jinyue Cai , Pheng-Ann Heng

Cross-domain sequential recommendation (CDSR) shifts the modeling of user preferences from flat to stereoscopic by integrating and learning interaction information from multiple domains at different granularities (ranging from…

Information Retrieval · Computer Science 2024-08-27 Shu Chen , Zitao Xu , Weike Pan , Qiang Yang , Zhong Ming

Bundle recommendation seeks to recommend a bundle of related items to users to improve both user experience and the profits of platform. Existing bundle recommendation models have progressed from capturing only user-bundle interactions to…

Information Retrieval · Computer Science 2024-01-12 Yunshan Ma , Yingzhi He , Xiang Wang , Yinwei Wei , Xiaoyu Du , Yuyangzi Fu , Tat-Seng Chua