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Incorporating Knowledge Graphs into Recommendation has attracted growing attention in industry, due to the great potential of KG in providing abundant supplementary information and interpretability for the underlying models. However, simply…

Information Retrieval · Computer Science 2024-06-03 Ding Zou , Wei Wei , Feida Zhu , Chuanyu Xu , Tao Zhang , Chengfu Huo

In many domains of empirical sciences, discovering the causal structure within variables remains an indispensable task. Recently, to tackle with unoriented edges or latent assumptions violation suffered by conventional methods, researchers…

Machine Learning · Computer Science 2024-12-30 Shixuan Liu , Yanghe Feng , Keyu Wu , Guangquan Cheng , Jincai Huang , Zhong Liu

Urban region representation is crucial for various urban downstream tasks. However, despite the proliferation of methods and their success, acquiring general urban region knowledge and adapting to different tasks remains challenging.…

Artificial Intelligence · Computer Science 2025-07-04 Jiahui Jin , Yifan Song , Dong Kan , Haojia Zhu , Xiangguo Sun , Zhicheng Li , Xigang Sun , Jinghui Zhang

In recent years, researchers attempt to utilize online social information to alleviate data sparsity for collaborative filtering, based on the rationale that social networks offers the insights to understand the behavioral patterns.…

Information Retrieval · Computer Science 2021-10-11 Xiaoling Long , Chao Huang , Yong Xu , Huance Xu , Peng Dai , Lianghao Xia , Liefeng Bo

Optimal path planning requires finding a series of feasible states from the starting point to the goal to optimize objectives. Popular path planning algorithms, such as Effort Informed Trees (EIT*), employ effort heuristics to guide the…

Sequential recommendation (SR) aims to predict the next purchasing item according to users' dynamic preference learned from their historical user-item interactions. To improve the performance of recommendation, learning dynamic…

Information Retrieval · Computer Science 2024-12-31 Chuan He , Yongchao Liu , Qiang Li , Weiqiang Wang , Xin Fu , Xinyi Fu , Chuntao Hong , Xinwei Yao

Incorporating Knowledge Graphs (KG) into recommeder system has attracted considerable attention. Recently, the technical trend of Knowledge-aware Recommendation (KGR) is to develop end-to-end models based on graph neural networks (GNNs).…

Information Retrieval · Computer Science 2022-08-23 Ding Zou , Wei Wei , Ziyang Wang , Xian-Ling Mao , Feida Zhu , Rui Fang , Dangyang Chen

Sequential recommendation aims to leverage users' historical behaviors to predict their next interaction. Existing works have not yet addressed two main challenges in sequential recommendation. First, user behaviors in their rich historical…

Information Retrieval · Computer Science 2023-07-27 Jianxin Chang , Chen Gao , Yu Zheng , Yiqun Hui , Yanan Niu , Yang Song , Depeng Jin , Yong Li

In recommendation systems, the traditional multi-stage paradigm, which includes retrieval and ranking, often suffers from information loss between stages and diminishes performance. Recent advances in generative models, inspired by natural…

Information Retrieval · Computer Science 2025-04-24 Luankang Zhang , Kenan Song , Yi Quan Lee , Wei Guo , Hao Wang , Yawen Li , Huifeng Guo , Yong Liu , Defu Lian , Enhong Chen

Graph neural network (GNN) based recommender systems have become one of the mainstream trends due to the powerful learning ability from user behavior data. Understanding the user intents from behavior data is the key to recommender systems,…

Information Retrieval · Computer Science 2024-03-07 Yuling Wang , Xiao Wang , Xiangzhou Huang , Yanhua Yu , Haoyang Li , Mengdi Zhang , Zirui Guo , Wei Wu

Session-based recommendation focuses on predicting the next item a user will interact with based on sequences of anonymous user sessions. A significant challenge in this field is data sparsity due to the typically short-term interactions.…

Information Retrieval · Computer Science 2024-12-17 Zhe Yang , Tiantian Liang

The quality of graph-structured data is fundamental to the success of modern graph analysis techniques such as Graph Neural Networks (GNNs). However, real-world graph data is often suboptimal, suffering from issues such as noise and…

Machine Learning · Computer Science 2026-05-19 Shen Han , Zhiyao Zhou , Jiawei Chen , Sheng Zhou , Canghong Jin , Hai Lin , Da Zhong Li , Bingde Hu , Can Wang

To provide more accurate, diverse, and explainable recommendation, it is compulsory to go beyond modeling user-item interactions and take side information into account. Traditional methods like factorization machine (FM) cast it as a…

Machine Learning · Computer Science 2019-06-11 Xiang Wang , Xiangnan He , Yixin Cao , Meng Liu , Tat-Seng Chua

Incorporating knowledge graph into recommender systems has attracted increasing attention in recent years. By exploring the interlinks within a knowledge graph, the connectivity between users and items can be discovered as paths, which…

Information Retrieval · Computer Science 2018-11-13 Xiang Wang , Dingxian Wang , Canran Xu , Xiangnan He , Yixin Cao , Tat-Seng Chua

Numerous Knowledge Graphs (KGs) are being created to make Recommender Systems (RSs) not only intelligent but also knowledgeable. Integrating a KG in the recommendation process allows the underlying model to extract reasoning paths between…

Information Retrieval · Computer Science 2022-11-11 Giacomo Balloccu , Ludovico Boratto , Gianni Fenu , Mirko Marras

Learning to compose visual relationships from raw images in the form of scene graphs is a highly challenging task due to contextual dependencies, but it is essential in computer vision applications that depend on scene understanding.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Neau Maëlic , Paulo E. Santos , Anne-Gwenn Bosser , Cédric Buche

Graph neural networks (GNNs) have been widely applied in the recommendation tasks and have obtained very appealing performance. However, most GNN-based recommendation methods suffer from the problem of data sparsity in practice. Meanwhile,…

Information Retrieval · Computer Science 2021-12-15 Yiqi Wang , Chaozhuo Li , Zheng Liu , Mingzheng Li , Jiliang Tang , Xing Xie , Lei Chen , Philip S. Yu

Graph convolutional networks (GCNs) are nowadays becoming mainstream in solving many image processing tasks including skeleton-based recognition. Their general recipe consists in learning convolutional and attention layers that maximize…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Hichem Sahbi

Dynamic graph neural networks (DGNNs) have emerged and been widely deployed in various web applications (e.g., Reddit) to serve users (e.g., personalized content delivery) due to their remarkable ability to learn from complex and dynamic…

Machine Learning · Computer Science 2025-02-04 He Zhang , Bang Wu , Xiangwen Yang , Xingliang Yuan , Xiaoning Liu , Xun Yi

Many robotic exploration algorithms rely on graph structures for frontier-based exploration and dynamic path planning. However, these graphs grow rapidly, accumulating redundant information and impacting performance. We present a…

Robotics · Computer Science 2026-04-21 Adithya V. Sastry , Bibek Poudel , Weizi Li