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Precise user and item embedding learning is the key to building a successful recommender system. Traditionally, Collaborative Filtering(CF) provides a way to learn user and item embeddings from the user-item interaction history. However,…

Information Retrieval · Computer Science 2019-04-24 Le Wu , Peijie Sun , Yanjie Fu , Richang Hong , Xiting Wang , Meng Wang

In modern e-commerce, item content features in various modalities offer accurate yet comprehensive information to recommender systems. The majority of previous work either focuses on learning effective item representation during modelling…

Information Retrieval · Computer Science 2024-08-15 Hao Wu , Alejandro Ariza-Casabona , Bartłomiej Twardowski , Tri Kurniawan Wijaya

Recommender systems have shown great potential to address information overload problem, namely to help users in finding interesting and relevant objects within a huge information space. Some physical dynamics, including heat conduction…

Data Analysis, Statistics and Probability · Physics 2011-07-04 Linyuan Lu , Weiping Liu

Recommender systems, which merely leverage user-item interactions for user preference prediction (such as the collaborative filtering-based ones), often face dramatic performance degradation when the interactions of users or items are…

Information Retrieval · Computer Science 2021-05-11 Xinxiao Zhao , Zhiyong Cheng , Lei Zhu , Jiecai Zheng , Xueqing Li

Knowledge-grounded dialog systems need to incorporate smooth transitions among knowledge selected for generating responses, to ensure that dialog flows naturally. For document-grounded dialog systems, the inter- and intra-document knowledge…

Computation and Language · Computer Science 2022-10-06 Lin Xu , Qixian Zhou , Jinlan Fu , Min-Yen Kan , See-Kiong Ng

Diffusion Transformers (DiTs) have emerged as a leading architecture for text-to-image synthesis, producing high-quality and photorealistic images. However, the quadratic scaling properties of the attention in DiTs hinder image generation…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Philipp Becker , Abhinav Mehrotra , Ruchika Chavhan , Malcolm Chadwick , Luca Morreale , Mehdi Noroozi , Alberto Gil Ramos , Sourav Bhattacharya

Text-guided image generation and editing using diffusion models have achieved remarkable advancements. Among these, tuning-free methods have gained attention for their ability to perform edits without extensive model adjustments, offering…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Wenyi Mo , Tianyu Zhang , Yalong Bai , Bing Su , Ji-Rong Wen

Foveated graphics is a promising approach to solving the bandwidth challenges of immersive virtual and augmented reality displays by exploiting the falloff in spatial acuity in the periphery of the visual field. However, the perceptual…

Human-Computer Interaction · Computer Science 2023-05-12 Brooke Krajancich , Petr Kellnhofer , Gordon Wetzstein

Disentangled representation learning strives to extract the intrinsic factors within observed data. Factorizing these representations in an unsupervised manner is notably challenging and usually requires tailored loss functions or specific…

Computer Vision and Pattern Recognition · Computer Science 2024-06-13 Tao Yang , Cuiling Lan , Yan Lu , Nanning zheng

Diffusion-based data augmentation (DiffDA) has emerged as a promising approach to improving classification performance under data scarcity. However, existing works vary significantly in task configurations, model choices, and experimental…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Zekun Li , Yinghuan Shi , Yang Gao , Dong Xu

As one of the most successful generative models, diffusion models have demonstrated remarkable efficacy in synthesizing high-quality images. These models learn the underlying high-dimensional data distribution in an unsupervised manner.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Min Hou , Yueying Wu , Chang Xu , Yu-Hao Huang , Chenxi Bai , Le Wu , Jiang Bian

As a technically challenging topic, visual storytelling aims at generating an imaginary and coherent story with narrative multi-sentences from a group of relevant images. Existing methods often generate direct and rigid descriptions of…

Computer Vision and Pattern Recognition · Computer Science 2022-03-11 Tengpeng Li , Hanli Wang , Bin He , Chang Wen Chen

Unsupervised Contrastive learning has gained prominence in fields such as vision, and biology, leveraging predefined positive/negative samples for representation learning. Data augmentation, categorized into hand-designed and model-based…

Machine Learning · Computer Science 2024-05-28 Zelin Zang , Hao Luo , Kai Wang , Panpan Zhang , Fan Wang , Stan. Z Li , Yang You

We propose an end-to-end-trainable attention module for convolutional neural network (CNN) architectures built for image classification. The module takes as input the 2D feature vector maps which form the intermediate representations of the…

Computer Vision and Pattern Recognition · Computer Science 2018-05-01 Saumya Jetley , Nicholas A. Lord , Namhoon Lee , Philip H. S. Torr

Recommender systems aim to provide personalized item recommendations by capturing user behaviors derived from their interaction history. Considering that user interactions naturally occur sequentially based on users' intents in mind, user…

Information Retrieval · Computer Science 2025-01-14 Yijin Choi , Chiehyeon Lim

Interactive news recommendation has been launched and attracted much attention recently. In this scenario, user's behavior evolves from single click behavior to multiple behaviors including like, comment, share etc. However, most of the…

Information Retrieval · Computer Science 2021-05-21 Mingyuan Ma , Sen Na , Hongyu Wang , Congzhou Chen , Jin Xu

Hypergraph can capture complex and higher-order dependencies among learners and learning resources in personalized educational recommender systems. Many existing hypergraph-based recommendation approaches underexplored the dynamic…

Information Retrieval · Computer Science 2026-03-17 Tao Xie , Yan Li , Yongpan Sheng , Jian Liao

In this paper, we introduce a new self-supervised rationalization method, called KGRec, for knowledge-aware recommender systems. To effectively identify informative knowledge connections, we propose an attentive knowledge rationalization…

Information Retrieval · Computer Science 2023-07-07 Yuhao Yang , Chao Huang , Lianghao Xia , Chunzhen Huang

Knowledge Graphs (KGs) have shown great success in recommendation. This is attributed to the rich attribute information contained in KG to improve item and user representations as side information. However, existing knowledge-aware methods…

Information Retrieval · Computer Science 2021-12-20 Zepeng Huai , Jianhua Tao , Feihu Che , Guohua Yang , Dawei Zhang

Recent years have witnessed the success of diffusion models in image customization tasks. However, existing mask-guided human erasing methods still struggle in complex scenarios such as human-human occlusion, human-object entanglement, and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Jinghan Yu , Junhao Xiao , Zhiyuan Ma , Yue Ma , Kaiqi Liu , Yuhan Wang , Daizong Liu , Xianghao Meng , Jianjun Li