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Deep learning recommendation systems rely on feature interaction modules to model complex user-item relationships across sparse categorical and dense features. In large-scale ad ranking, increasing model capacity is a promising path to…

Machine Learning · Computer Science 2026-02-11 Jiacheng Li , Yixiong Meng , Yi wu , Yun Zhao , Sharare Zehtabian , Jiayin Jin , Degao Peng , Jinfeng Zhuang , Qifei Shen , Kungang Li

Ensemble learning serves as a straightforward way to improve the performance of almost any machine learning algorithm. Existing deep ensemble methods usually naively train many different models and then aggregate their predictions. This is…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Le Zhang , Qibin Hou , Yun Liu , Jia-Wang Bian , Xun Xu , Joey Tianyi Zhou , Ce Zhu

Accuracy and diversity have long been considered to be two conflicting goals for recommendations. We point out, however, that as the diversity is typically measured by certain pre-selected item attributes, e.g., category as the most…

Information Retrieval · Computer Science 2023-01-16 Xiaoying Zhang , Hongning Wang , Hang Li

Accurate classification of fine-grained images remains a challenge in backbones based on convolutional operations or self-attention mechanisms. This study proposes novel dual-current neural networks (DCNN), which combine the advantages of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Da Fu , Mingfei Rong , Eun-Hu Kim , Hao Huang , Witold Pedrycz

Recommender systems learn from historical user-item interactions to identify preferred items for target users. These observed interactions are usually unbalanced following a long-tailed distribution. Such long-tailed data lead to popularity…

Information Retrieval · Computer Science 2022-11-03 Weijieying Ren , Lei Wang , Kunpeng Liu , Ruocheng Guo , Lim Ee Peng , Yanjie Fu

Recommender systems are becoming more and more important in our daily lives. However, traditional recommendation methods are challenged by data sparsity and efficiency, as the numbers of users, items, and interactions between the two in…

Information Retrieval · Computer Science 2019-04-30 Jinyin Chen , Yangyang Wu , Lu Fan , Xiang Lin , Haibin Zheng , Shanqing Yu , Qi Xuan

Recommender systems play a crucial role in addressing the issue of information overload by delivering personalized recommendations to users. In recent years, there has been a growing interest in leveraging graph neural networks (GNNs) for…

Information Retrieval · Computer Science 2023-06-09 Ziyang Liu , Chaokun Wang , Jingcao Xu , Cheng Wu , Kai Zheng , Yang Song , Na Mou , Kun Gai

Predictive models trained on observational data often fail to generalise to the distributions they encounter when deployed, especially when the training data is a product of the system being optimised. Recommender systems are a canonical…

Machine Learning · Statistics 2026-05-27 Yorgos Felekis , Michael O'Riordan , Oriol Corcoll , Ciarán M. Gilligan-Lee

The rapid proliferation of new users and items on the social web has aggravated the gray-sheep user/long-tail item challenge in recommender systems. Historically, cross-domain co-clustering methods have successfully leveraged shared users…

Information Retrieval · Computer Science 2020-05-22 Adit Krishnan , Mahashweta Das , Mangesh Bendre , Hao Yang , Hari Sundaram

Although the collaborative filtering (CF) algorithm has achieved remarkable performance in recommendation systems, it suffers from suboptimal recommendation performance due to noise in the user-item interaction matrix. Numerous…

Information Retrieval · Computer Science 2025-11-07 Zefeng Li , Ning Yang

Bundle recommendation aims to recommend a bundle of related items to users, which can satisfy the users' various needs with one-stop convenience. Recent methods usually take advantage of both user-bundle and user-item interactions…

Information Retrieval · Computer Science 2023-01-18 Yunshan Ma , Yingzhi He , An Zhang , Xiang Wang , Tat-Seng Chua

In many recommender systems, users and items are associated with attributes, and users show preferences to items. The attribute information describes users'(items') characteristics and has a wide range of applications, such as user…

Information Retrieval · Computer Science 2020-05-26 Le Wu , Yonghui Yang , Kun Zhang , Richang Hong , Yanjie Fu , Meng Wang

Long-tailed data bias decision boundaries toward head classes and degrade tail class accuracy. Diffusion-based generative augmentation address this problem by generating additional data, while head-to-tail transfer further mitigate the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Jiacheng Yang , Ruichi Zhang , Chikai Shang , Mengke Li , Xinyi Shang , Junlong Gao , Yonggang Zhang , Yang Lu

Cross-domain recommendation can alleviate the data sparsity problem in recommender systems. To transfer the knowledge from one domain to another, one can either utilize the neighborhood information or learn a direct mapping function.…

Machine Learning · Computer Science 2019-10-21 Zhiwei Liu , Lei Zheng , Jiawei Zhang , Jiayu Han , Philip S. Yu

E-commerce platforms have a vast catalog of items to cater to their customers' shopping interests. Most of these platforms assist their customers in the shopping process by offering optimized recommendation carousels, designed to help…

Information Retrieval · Computer Science 2025-08-18 Shanu Vashishtha , Abhay Kumar , Lalitesh Morishetti , Kaushiki Nag , Kannan Achan

In recent years, thanks to the rapid development of deep learning (DL), DL-based multi-task learning (MTL) has made significant progress, and it has been successfully applied to recommendation systems (RS). However, in a recommender system,…

Information Retrieval · Computer Science 2023-02-13 Jie Zhou , Qian Yu , Chuan Luo , Jing Zhang

Sequential recommendation aims to infer user preferences from historical interaction sequences and predict the next item that users may be interested in the future. The current mainstream design approach is to represent items as fixed…

Information Retrieval · Computer Science 2023-12-21 Yong Niu , Xing Xing , Zhichun Jia , Ruidi Liu , Mindong Xin

Data in real-world object detection often exhibits the long-tailed distribution. Existing solutions tackle this problem by mitigating the competition between the head and tail categories. However, due to the scarcity of training samples,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Bo Li , Yongqiang Yao , Jingru Tan , Xin Lu , Fengwei Yu , Ye Luo , Jianwei Lu

Generalized Category Discovery (GCD) aims to recognize both known and novel categories from a set of unlabeled data, based on another dataset labeled with only known categories. Without considering differences between known and novel…

Computation and Language · Computer Science 2023-03-16 Wenbin An , Feng Tian , Qinghua Zheng , Wei Ding , QianYing Wang , Ping Chen

Recommender systems assist users in navigating complex information spaces and focus their attention on the content most relevant to their needs. Often these systems rely on user activity or descriptions of the content. Social annotation…

Information Retrieval · Computer Science 2016-08-24 Greg Zanotti , Miller Horvath , Lucas Nunes Barbosa , Venkata Trinadh Kumar Gupta Immedisetty , Jonathan Gemmell