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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

Due to the proliferation of social media, a growing number of users search for and join group activities in their daily life. This develops a need for the study on the ranking-based group identification (RGI) task, i.e., recommending groups…

Social and Information Networks · Computer Science 2022-11-17 Mingdai Yang , Zhiwei Liu , Liangwei Yang , Xiaolong Liu , Chen Wang , Hao Peng , Philip S. Yu

Learning informative representations (aka. embeddings) of users and items is the core of modern recommender systems. Previous works exploit user-item relationships of one-hop neighbors in the user-item interaction graph to improve the…

Information Retrieval · Computer Science 2021-03-02 Jinbo Song , Chao Chang , Fei Sun , Xinbo Song , Peng Jiang

In order to answer semantically-complicated questions about an image, a Visual Question Answering (VQA) model needs to fully understand the visual scene in the image, especially the interactive dynamics between different objects. We propose…

Computer Vision and Pattern Recognition · Computer Science 2019-10-11 Linjie Li , Zhe Gan , Yu Cheng , Jingjing Liu

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

Sequential recommendation systems model dynamic preferences of users based on their historical interactions with platforms. Despite recent progress, modeling short-term and long-term behavior of users in such systems is nontrivial and…

Information Retrieval · Computer Science 2021-07-07 Mehrnaz Amjadi , Seyed Danial Mohseni Taheri , Theja Tulabandhula

In this paper, we propose a novel model named DemiNet (short for DEpendency-Aware Multi-Interest Network) to address the above two issues. To be specific, we first consider various dependency types between item nodes and perform…

Information Retrieval · Computer Science 2024-03-12 Yule Wang , Qiang Luo , Yue Ding , Yunzhe Li , Dong Wang , Hongbo Deng

We propose the joint graph attention neural network (GAT), clustering with adaptive neighbors (CAN) and probabilistic graphical model for dynamic power flow analysis and fault characteristics. In fact, computational efficiency is the main…

Machine Learning · Computer Science 2025-03-25 Tan Le , Van Le

Lifelong sequential modeling (LSM) is becoming increasingly critical in social media recommendation systems for predicting the click-through rate (CTR) of items presented to users. Central to this process is the attention mechanism, which…

Information Retrieval · Computer Science 2025-04-14 Ting Guo , Zhaoyang Yang , Qinsong Zeng , Ming Chen

In the Click-Through Rate (CTR) prediction scenario, user's sequential behaviors are well utilized to capture the user interest in the recent literature. However, despite being extensively studied, these sequential methods still suffer from…

Information Retrieval · Computer Science 2021-11-04 Kai Zhang , Hao Qian , Qing Cui , Qi Liu , Longfei Li , Jun Zhou , Jianhui Ma , Enhong Chen

Knowledge graphs (KGs) have proven to be effective for high-quality recommendation, where the connectivities between users and items provide rich and complementary information to user-item interactions. Most existing methods, however, are…

Information Retrieval · Computer Science 2021-09-16 Xiao Sha , Zhu Sun , Jie Zhang

Predicting the future trajectories of multiple interacting agents in a scene has become an increasingly important problem for many different applications ranging from control of autonomous vehicles and social robots to security and…

Computer Vision and Pattern Recognition · Computer Science 2019-07-18 Vineet Kosaraju , Amir Sadeghian , Roberto Martín-Martín , Ian Reid , S. Hamid Rezatofighi , Silvio Savarese

In this paper, we present CrimeGAT, a novel application of Graph Attention Networks (GATs) for predictive policing in criminal networks. Criminal networks pose unique challenges for predictive analytics due to their complex structure,…

Social and Information Networks · Computer Science 2023-12-01 Chen Yang

Recommending suitable items to a group of users, commonly referred to as the group recommendation task, is becoming increasingly urgent with the development of group activities. The challenges within the group recommendation task involve…

Information Retrieval · Computer Science 2023-11-21 Juntao Zhang , Sheng Wang , Zhiyu Chen , Xiandi Yang , Zhiyong Peng

Both knowledge graphs and user-item interaction graphs are frequently used in recommender systems due to their ability to provide rich information for modeling users and items. However, existing studies often focused on one of these sources…

Information Retrieval · Computer Science 2023-06-27 Yajing Yang , Zeyu Zeng , Mao Chen , Ruirui Shang

Effective understanding of the environment and accurate trajectory prediction of surrounding dynamic obstacles are indispensable for intelligent mobile systems (like autonomous vehicles and social robots) to achieve safe and high-quality…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Jiachen Li , Hengbo Ma , Zhihao Zhang , Masayoshi Tomizuka

With the development of social platforms, people are more and more inclined to combine into groups to participate in some activities, so group recommendation has gradually become a problem worthy of research. For group recommendation, an…

Information Retrieval · Computer Science 2021-09-24 Bojie Wang , Yuheng Lu

Recommender systems have been demonstrated to be effective to meet user's personalized interests for many online services (e.g., E-commerce and online advertising platforms). Recent years have witnessed the emerging success of many deep…

Information Retrieval · Computer Science 2023-02-20 Lianghao Xia , Chao Huang , Yong Xu , Peng Dai , Liefeng Bo

Interactive segmentation algorithms based on click points have garnered significant attention from researchers in recent years. However, existing studies typically use sparse click maps as model inputs to segment specific target objects,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Long Xu , Shanghong Li , Yongquan Chen , Junkang Chen , Rui Huang , Feng Wu

An effective understanding of the environment and accurate trajectory prediction of surrounding dynamic obstacles are indispensable for intelligent mobile systems (e.g. autonomous vehicles and social robots) to achieve safe and high-quality…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Jiachen Li , Hengbo Ma , Zhihao Zhang , Jinning Li , Masayoshi Tomizuka