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The cold start problem in recommender systems is a long-standing challenge, which requires recommending to new users (items) based on attributes without any historical interaction records. In these recommendation systems, warm users (items)…

Information Retrieval · Computer Science 2021-06-01 Shuai Wang , Kun Zhang , Le Wu , Haiping Ma , Richang Hong , Meng Wang

In recent years, live streaming platforms have gained immense popularity as they allow users to broadcast their videos and interact in real-time with hosts and peers. Due to the dynamic changes of live content, accurate recommendation…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Jiaxin Deng , Dong Shen , Shiyao Wang , Xiangyu Wu , Fan Yang , Guorui Zhou , Gaofeng Meng

Many few-shot learning approaches have been designed under the meta-learning framework, which learns from a variety of learning tasks and generalizes to new tasks. These meta-learning approaches achieve the expected performance in the…

Machine Learning · Computer Science 2022-01-05 Yongchun Zhu , Fuzhen Zhuang , Xiangliang Zhang , Zhiyuan Qi , Zhiping Shi , Juan Cao , Qing He

The goal of the challenge is to develop a test-time adaptation (TTA) method, which could adapt the model to gradually changing domains in video sequences for semantic segmentation task. It is based on a synthetic driving video dataset -…

Computer Vision and Pattern Recognition · Computer Science 2023-10-23 Damian Sójka , Yuyang Liu , Dipam Goswami , Sebastian Cygert , Bartłomiej Twardowski , Joost van de Weijer

User interactions on e-commerce platforms are inherently diverse, involving behaviors such as clicking, favoriting, adding to cart, and purchasing. The transitions between these behaviors offer valuable insights into user-item interactions,…

Artificial Intelligence · Computer Science 2026-01-22 Hanqi Jin , Gaoming Yang , Zhangming Chan , Yapeng Yuan , Longbin Li , Fei Sun , Yeqiu Yang , Jian Wu , Yuning Jiang , Bo Zheng

Matrix completion is a classic problem underlying recommender systems. It is traditionally tackled with matrix factorization. Recently, deep learning based methods, especially graph neural networks, have made impressive progress on this…

Information Retrieval · Computer Science 2021-03-01 Tieyun Qian , Yile Liang , Qing Li

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…

Information Retrieval · Computer Science 2024-02-20 Xu Chen , Zida Cheng , Jiangchao Yao , Chen Ju , Weilin Huang , Jinsong Lan , Xiaoyi Zeng , Shuai Xiao

Link prediction is central to many real-world applications, but its performance may be hampered when the graph of interest is sparse. To alleviate issues caused by sparsity, we investigate a previously overlooked phenomenon: in many cases,…

Machine Learning · Computer Science 2023-06-21 Wenqing Zheng , Edward W Huang , Nikhil Rao , Zhangyang Wang , Karthik Subbian

Modeling time-evolving preferences of users with their sequential item interactions, has attracted increasing attention in many online applications. Hence, sequential recommender systems have been developed to learn the dynamic user…

Information Retrieval · Computer Science 2022-06-07 Lianghao Xia , Chao Huang , Yong Xu , Jian Pei

We present a graph theory-based method to characterise flow defects and structural shifts in condensed matter. We explore the connection between dynamical properties, particularly the recently introduced concept of ''softness'', and…

Disordered Systems and Neural Networks · Physics 2024-08-13 An Wang , Gabriele C. Sosso

Data sparsity is an important issue for click-through rate (CTR) prediction, particularly when user-item interactions is too sparse to learn a reliable model. Recently, many works on cross-domain CTR (CDCTR) prediction have been developed…

Information Retrieval · Computer Science 2023-05-10 Xu Chen , Zida Cheng , Shuai Xiao , Xiaoyi Zeng , Weilin Huang

Recommender systems are widely used in various real-world applications, but they often encounter the persistent challenge of the user cold-start problem. Cross-domain recommendation (CDR), which leverages user interactions from one domain…

Information Retrieval · Computer Science 2025-02-13 Hourun Li , Yifan Wang , Zhiping Xiao , Jia Yang , Changling Zhou , Ming Zhang , Wei Ju

Existing click-through rate (CTR) prediction works have studied the role of feature interaction through a variety of techniques. Each interaction technique exhibits its own strength, and solely using one type usually constrains the model's…

Information Retrieval · Computer Science 2025-06-23 Xu Chen , Zida Cheng , Yuangang Pan , Shuai Xiao , Xiaoming Liu , Jinsong Lan , Xiaoyong Zhu , Bo Zheng , Ivor W. Tsang

Estimating click-through rate (CTR) accurately has an essential impact on improving user experience and revenue in sponsored search. For CTR prediction model, it is necessary to make out user real-time search intention. Most of the current…

Machine Learning · Computer Science 2021-03-31 Feng Li , Zhenrui Chen , Pengjie Wang , Yi Ren , Di Zhang , Xiaoyu Zhu

Click-through rate (CTR) prediction is of great importance in recommendation systems and online advertising platforms. When served in industrial scenarios, the user-generated data observed by the CTR model typically arrives as a stream.…

Information Retrieval · Computer Science 2023-04-19 Congcong Liu , Fei Teng , Xiwei Zhao , Zhangang Lin , Jinghe Hu , Jingping Shao

Cold-start problems are enormous challenges in practical recommender systems. One promising solution for this problem is cross-domain recommendation (CDR) which leverages rich information from an auxiliary (source) domain to improve the…

Information Retrieval · Computer Science 2021-05-12 Yongchun Zhu , Kaikai Ge , Fuzhen Zhuang , Ruobing Xie , Dongbo Xi , Xu Zhang , Leyu Lin , Qing He

Recently, research on Text-Attributed Graphs (TAGs) has gained significant attention due to the prevalence of free-text node features in real-world applications and the advancements in Large Language Models (LLMs) that bolster TAG…

Machine Learning · Computer Science 2025-02-25 Yun Zhu , Haizhou Shi , Xiaotang Wang , Yongchao Liu , Yaoke Wang , Boci Peng , Chuntao Hong , Siliang Tang

The cold-start problem is a long-standing challenge in recommender systems due to the lack of user-item interactions, which significantly hurts the recommendation effect over new users and items. Recently, meta-learning based methods…

Information Retrieval · Computer Science 2024-05-07 Yuxiang Shi , Yue Ding , Bo Chen , Yuyang Huang , Yule Wang , Ruiming Tang , Dong Wang

Under difficult environmental conditions, the view of RGB cameras may be restricted by fog, dust or difficult lighting situations. Because thermal cameras visualize thermal radiation, they are not subject to the same limitations as RGB…

Computer Vision and Pattern Recognition · Computer Science 2019-07-29 Sebastian P. Kleinschmidt , Bernardo Wagner

Feature Transformation (FT) crafts new features from original ones via mathematical operations to enhance dataset expressiveness for downstream models. However, existing FT methods exhibit critical limitations: discrete search struggles…

Machine Learning · Computer Science 2025-05-22 Nanxu Gong , Zijun Li , Sixun Dong , Haoyue Bai , Wangyang Ying , Xinyuan Wang , Yanjie Fu