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Nowadays, many platforms provide users with both search and recommendation services as important tools for accessing information. The phenomenon has led to a correlation between user search and recommendation behaviors, providing an…

Information Retrieval · Computer Science 2024-04-16 Teng Shi , Zihua Si , Jun Xu , Xiao Zhang , Xiaoxue Zang , Kai Zheng , Dewei Leng , Yanan Niu , Yang Song

Multiview representation learning of data can help construct coherent and contextualized users' representations on social media. This paper suggests a joint embedding model, incorporating users' social and textual information to learn…

Computation and Language · Computer Science 2023-07-04 Tunazzina Islam , Dan Goldwasser

Reusable embeddings of user behaviour have shown significant performance improvements for the personalised saliency prediction task. However, prior works require explicit user characteristics and preferences as input, which are often…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Florian Strohm , Mihai Bâce , Andreas Bulling

Collaborative recommendation fundamentally involves learning high-quality user and item representations from interaction data. Recently, graph convolution networks (GCNs) have advanced the field by utilizing high-order connectivity patterns…

Information Retrieval · Computer Science 2024-12-30 Jiajia Chen , Jiancan Wu , Jiawei Chen , Chongming Gao , Yong Li , Xiang Wang

Online video services acquire new content on a daily basis to increase engagement, and improve the user experience. Traditional recommender systems solely rely on watch history, delaying the recommendation of newly added titles to the right…

Information Retrieval · Computer Science 2022-04-05 Jianling Wang , Ainur Yessenalina , Alireza Roshan-Ghias

We propose a concise representation of videos that encode perceptually meaningful features into graphs. With this representation, we aim to leverage the large amount of redundancies in videos and save computations. First, we construct…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Eitan Kosman , Dotan Di Castro

Movie recommendation systems provide users with ranked lists of movies based on individual's preferences and constraints. Two types of models are commonly used to generate ranking results: long-term models and session-based models. While…

Information Retrieval · Computer Science 2018-06-27 Wei Zhao , Haixia Chai , Benyou Wang , Jianbo Ye , Min Yang , Zhou Zhao , Xiaojun Chen

Behavior recognition is an important task in video representation learning. An essential aspect pertains to effective feature learning conducive to behavior recognition. Recently, researchers have started to study fine-grained behavior…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Chengyang Hu , Yuduo Chen , Lizhuang Ma

User purchasing prediction with multi-behavior information remains a challenging problem for current recommendation systems. Various methods have been proposed to address it via leveraging the advantages of graph neural networks (GNNs) or…

Information Retrieval · Computer Science 2022-01-20 Haoran Yang , Hongxu Chen , Lin Li , Philip S. Yu , Guandong Xu

Representation learning on user-item graph for recommendation has evolved from using single ID or interaction history to exploiting higher-order neighbors. This leads to the success of graph convolution networks (GCNs) for recommendation…

Information Retrieval · Computer Science 2021-06-21 Jiancan Wu , Xiang Wang , Fuli Feng , Xiangnan He , Liang Chen , Jianxun Lian , Xing Xie

Graph neural networks have been widely used for learning representations of nodes for many downstream tasks on graph data. Existing models were designed for the nodes on a single graph, which would not be able to utilize information across…

Machine Learning · Computer Science 2021-06-04 Meng Jiang

Pedestrian trajectory prediction is a critical yet challenging task, especially for crowded scenes. We suggest that introducing an attention mechanism to infer the importance of different neighbors is critical for accurate trajectory…

Computer Vision and Pattern Recognition · Computer Science 2021-01-15 Congcong Liu , Yuying Chen , Ming Liu , Bertram E. Shi

In this study, we present a dynamic graph representation learning model on weighted graphs to accurately predict the network capacity of connections between viewers in a live video streaming event. We propose EGAD, a neural network…

Machine Learning · Computer Science 2020-11-12 Stefanos Antaris , Dimitrios Rafailidis , Sarunas Girdzijauskas

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

Incorporating knowledge graph (KG) into recommender system is promising in improving the recommendation accuracy and explainability. However, existing methods largely assume that a KG is complete and simply transfer the "knowledge" in KG at…

Information Retrieval · Computer Science 2019-02-19 Yixin Cao , Xiang Wang , Xiangnan He , Zikun hu , Tat-Seng Chua

Existing review-based recommendation methods usually use the same model to learn the representations of all users/items from reviews posted by users towards items. However, different users have different preference and different items have…

Information Retrieval · Computer Science 2019-05-31 Hongtao Liu , Fangzhao Wu , Wenjun Wang , Xianchen Wang , Pengfei Jiao , Chuhan Wu , Xing Xie

In many different fields interactions between objects play a critical role in determining their behavior. Graph neural networks (GNNs) have emerged as a powerful tool for modeling interactions, although often at the cost of adding…

Computer Vision and Pattern Recognition · Computer Science 2022-06-09 Zhaoen Su , Chao Wang , David Bradley , Carlos Vallespi-Gonzalez , Carl Wellington , Nemanja Djuric

We present a novel Multi-Relational Graph Convolutional Network (MRGCN) based framework to model on-road vehicle behaviors from a sequence of temporally ordered frames as grabbed by a moving monocular camera. The input to MRGCN is a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-17 Sravan Mylavarapu , Mahtab Sandhu , Priyesh Vijayan , K Madhava Krishna , Balaraman Ravindran , Anoop Namboodiri

Deep learning models have been widely used for anomaly detection in surveillance videos. Typical models are equipped with the capability to reconstruct normal videos and evaluate the reconstruction errors on anomalous videos to indicate the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Xianlin Zeng , Yalong Jiang , Wenrui Ding , Hongguang Li , Yafeng Hao , Zifeng Qiu

Graph Convolution Network (GCN) has been successfully used for 3D human pose estimation in videos. However, it is often built on the fixed human-joint affinity, according to human skeleton. This may reduce adaptation capacity of GCN to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-16 Junhao Zhang , Yali Wang , Zhipeng Zhou , Tianyu Luan , Zhe Wang , Yu Qiao