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Knowledge graph (KG) plays an increasingly important role in recommender systems. Recently, graph neural networks (GNNs) based model has gradually become the theme of knowledge-aware recommendation (KGR). However, there is a natural…

Information Retrieval · Computer Science 2022-04-20 Ding Zou , Wei Wei , Xian-Ling Mao , Ziyang Wang , Minghui Qiu , Feida Zhu , Xin Cao

Video highlight detection is a crucial yet challenging problem that aims to identify the interesting moments in untrimmed videos. The key to this task lies in effective video representations that jointly pursue two goals, \textit{i.e.},…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Shuaicheng Li , Feng Zhang , Kunlin Yang , Lingbo Liu , Shinan Liu , Jun Hou , Shuai Yi

Multi-view clustering (MvC) aims to integrate information from different views to enhance the capability of the model in capturing the underlying data structures. The widely used joint training paradigm in MvC is potentially not fully…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Zhenglai Li , Jun Wang , Chang Tang , Xinzhong Zhu , Wei Zhang , Xinwang Liu

Contrastive learning (CL) has shown its power in recommendation. However, most CL-based recommendation models build their CL tasks merely focusing on the user's aspects, ignoring the rich diverse information in items. In this work, we…

Information Retrieval · Computer Science 2023-01-18 Ruobing Xie , Zhijie Qiu , Bo Zhang , Leyu Lin

The wide development of mobile applications provides a considerable amount of data of all types (images, texts, sounds, videos, etc.). Thus, two main issues have to be considered: assist users in finding information and reduce search and…

Information Retrieval · Computer Science 2014-04-16 Djallel Bouneffouf

Graph Neural Networks (GNNs) have become powerful tools in modeling graph-structured data in recommender systems. However, real-life recommendation scenarios usually involve heterogeneous relationships (e.g., social-aware user influence,…

Information Retrieval · Computer Science 2023-03-03 Mengru Chen , Chao Huang , Lianghao Xia , Wei Wei , Yong Xu , Ronghua Luo

The extraction of text information in videos serves as a critical step towards semantic understanding of videos. It usually involved in two steps: (1) text recognition and (2) text classification. To localize texts in videos, we can resort…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Ye Liu , Changchong Lu , Chen Lin , Di Yin , Bo Ren

The purpose of this paper is to explore a multi-modal approach to enhancing live broadcast engagement by developing a short video recommendation system that incorporates Multi-modal Graph Convolutional Networks (MMGCN) with user…

Information Retrieval · Computer Science 2025-09-30 Saeid Aghasoleymani Najafabadi , Elaheh Nabavi Nia

Multimodal emotion recognition plays a key role in many domains, including mental health monitoring, educational interaction, and human-computer interaction. However, existing methods often face three major challenges: unbalanced category…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Feng Li , Ke Wu , Yongwei Li

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

Conversational recommendation system (CRS) is emerging as a user-friendly way to capture users' dynamic preferences over candidate items and attributes. Multi-shot CRS is designed to make recommendations multiple times until the user either…

Information Retrieval · Computer Science 2022-07-04 Yinan Zhang , Boyang Li , Yong Liu , You Yuan , Chunyan Miao

Training models to apply common-sense linguistic knowledge and visual concepts from 2D images to 3D scene understanding is a promising direction that researchers have only recently started to explore. However, it still remains understudied…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Alexandros Delitzas , Maria Parelli , Nikolas Hars , Georgios Vlassis , Sotirios Anagnostidis , Gregor Bachmann , Thomas Hofmann

The existing contrastive learning methods mainly focus on single-grained representation learning, e.g., part-level, object-level or scene-level ones, thus inevitably neglecting the transferability of representations on other granularity…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Chengchao Shen , Jianzhong Chen , Jianxin Wang

Learning effective motion features is an essential pursuit of video representation learning. This paper presents a simple yet effective sample construction strategy to boost the learning of motion features in video contrastive learning. The…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Yuan Liu , Jiacheng Chen , Hao Wu

Action recognition from video data forms a cornerstone with wide-ranging applications. Single-view action recognition faces limitations due to its reliance on a single viewpoint. In contrast, multi-view approaches capture complementary…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Yue Gao , Jiaxuan Lu , Siqi Li , Yipeng Li , Shaoyi Du

Inspired by the success of contrastive learning (CL) in computer vision and natural language processing, graph contrastive learning (GCL) has been developed to learn discriminative node representations on graph datasets. However, the…

Machine Learning · Computer Science 2023-01-03 Zehong Wang , Qi Li , Donghua Yu , Xiaolong Han , Xiao-Zhi Gao , Shigen Shen

Medical Vision-Language Models (Med-VLMs) have achieved success across various tasks, yet most existing methods overlook the modality misalignment issue that can lead to untrustworthy responses in clinical settings. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Songtao Jiang , Yan Zhang , Yeying Jin , Zhihang Tang , Yangyang Wu , Yang Feng , Jian Wu , Zuozhu Liu

Recommender systems are essential for modern content platforms, yet traditional behavior-based models often struggle with cold users who have limited interaction data. Engaging these users is crucial for platform growth. To bridge this gap,…

Information Retrieval · Computer Science 2025-10-13 Lin Wang , Weisong Wang , Xuanji Xiao , Qing Li

Video-based person re-identification (re-ID) is an important research topic in computer vision. The key to tackling the challenging task is to exploit both spatial and temporal clues in video sequences. In this work, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2021-05-03 Yichao Yan , Jie Qin1 , Jiaxin Chen , Li Liu , Fan Zhu , Ying Tai , Ling Shao

Text-video retrieval is a challenging task that aims to identify relevant videos given textual queries. Compared to conventional textual retrieval, the main obstacle for text-video retrieval is the semantic gap between the textual nature of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Qian Li , Lixin Su , Jiashu Zhao , Long Xia , Hengyi Cai , Suqi Cheng , Hengzhu Tang , Junfeng Wang , Dawei Yin