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Fine-grained visual categorization is to recognize hundreds of subcategories belonging to the same basic-level category, which is a highly challenging task due to the quite subtle and local visual distinctions among similar subcategories.…

计算机视觉与模式识别 · 计算机科学 2019-02-21 Xiangteng He , Yuxin Peng

Unsupervised semantic segmentation aims to discover groupings within and across images that capture object and view-invariance of a category without external supervision. Grouping naturally has levels of granularity, creating ambiguity in…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Tsung-Wei Ke , Jyh-Jing Hwang , Yunhui Guo , Xudong Wang , Stella X. Yu

Graph Representation Learning (GRL) has emerged as a cornerstone technique for analysing complex, networked data across diverse domains, including biological systems, social networks, and data analysis. Traditional GRL methods often…

Multi-View Clustering (MVC) has garnered increasing attention in recent years. It is capable of partitioning data samples into distinct groups by learning a consensus representation. However, a significant challenge remains: the problem of…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Jian Zhu

Thanks to the efficient retrieval speed and low storage consumption, learning to hash has been widely used in visual retrieval tasks. However, existing hashing methods assume that the query and retrieval samples lie in homogeneous feature…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Jianglin Lu , Jie Zhou , Yudong Chen , Witold Pedrycz , Kwok-Wai Hung

Inductive representation learning on temporal heterogeneous graphs is crucial for scalable deep learning on heterogeneous information networks (HINs) which are time-varying, such as citation networks. However, most existing approaches are…

机器学习 · 计算机科学 2024-05-15 Chenglin Li , Yuanzhen Xie , Chenyun Yu , Lei Cheng , Bo Hu , Zang Li , Di Niu

The well known domain shift issue causes model performance to degrade when deployed to a new target domain with different statistics to training. Domain adaptation techniques alleviate this, but need some instances from the target domain to…

机器学习 · 计算机科学 2019-06-11 Yiying Li , Yongxin Yang , Wei Zhou , Timothy M. Hospedales

Predicting the next interaction of a short-term interaction session is a challenging task in session-based recommendation. Almost all existing works rely on item transition patterns, and neglect the impact of user historical sessions while…

信息检索 · 计算机科学 2022-03-01 Yitong Pang , Lingfei Wu , Qi Shen , Yiming Zhang , Zhihua Wei , Fangli Xu , Ethan Chang , Bo Long , Jian Pei

Transfer learning has been demonstrated to be successful and essential in diverse applications, which transfers knowledge from related but different source domains to the target domain. Online transfer learning(OTL) is a more challenging…

机器学习 · 计算机科学 2020-02-12 Yuntao Du , Zhiwen Tan , Qian Chen , Yi Zhang , Chongjun Wang

Existing skin attributes detection methods usually initialize with a pre-trained Imagenet network and then fine-tune on a medical target task. However, we argue that such approaches are suboptimal because medical datasets are largely…

计算机视觉与模式识别 · 计算机科学 2022-01-31 Duy M. H. Nguyen , Thu T. Nguyen , Huong Vu , Quang Pham , Manh-Duy Nguyen , Binh T. Nguyen , Daniel Sonntag

The objective of image manipulation detection is to identify and locate the manipulated regions in the images. Recent approaches mostly adopt the sophisticated Convolutional Neural Networks (CNNs) to capture the tampering artifacts left in…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Wenyan Pan , Zhili Zhou , Miaogen Ling , Xin Geng , Q. M. Jonathan Wu

Aspect term extraction is a fundamental task in fine-grained sentiment analysis, which aims at detecting customer's opinion targets from reviews on product or service. The traditional supervised models can achieve promising results with…

计算与语言 · 计算机科学 2023-03-03 Jingli Shi , Weihua Li , Quan Bai , Yi Yang , Jianhua Jiang

Graph Representation Learning (GRL) is an influential methodology, enabling a more profound understanding of graph-structured data and aiding graph clustering, a critical task across various domains. The recent incursion of attention…

机器学习 · 计算机科学 2023-08-15 Shuo Han , Jiacheng Liu , Jiayun Wu , Yinan Chen , Li Tao

Domain adaptation aims at generalizing a high-performance learner on a target domain via utilizing the knowledge distilled from a source domain which has a different but related data distribution. One solution to domain adaptation is to…

机器学习 · 统计学 2018-03-12 Jian Shen , Yanru Qu , Weinan Zhang , Yong Yu

Link prediction on graphs is a fundamental problem. Subgraph representation learning approaches (SGRLs), by transforming link prediction to graph classification on the subgraphs around the links, have achieved state-of-the-art performance…

机器学习 · 计算机科学 2024-10-21 Paul Louis , Shweta Ann Jacob , Amirali Salehi-Abari

Deep graph clustering (DGC) for attribute-missing graphs is an unsupervised task aimed at partitioning nodes with incomplete attributes into distinct clusters. Addressing this challenging issue is vital for practical applications. However,…

机器学习 · 计算机科学 2025-08-06 Yaowen Hu , Wenxuan Tu , Yue Liu , Miaomiao Li , Wenpeng Lu , Zhigang Luo , Xinwang Liu , Ping Chen

Human Activity Recognition (HAR) using wearable sensors is crucial for healthcare, fitness tracking, and smart environments, yet cross-user variability -- stemming from diverse motion patterns, sensor placements, and physiological traits --…

机器学习 · 计算机科学 2025-09-03 Xiaozhou Ye , Kevin I-Kai Wang

In this paper, we focus on the imbalance issue, which is rarely studied in aspect term extraction and aspect sentiment classification when regarding them as sequence labeling tasks. Besides, previous works usually ignore the interaction…

计算与语言 · 计算机科学 2020-09-28 Huaishao Luo , Lei Ji , Tianrui Li , Nan Duan , Daxin Jiang

The dominant object detection approaches treat each dataset separately and fit towards a specific domain, which cannot adapt to other domains without extensive retraining. In this paper, we address the problem of designing a universal…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Hang Xu , Linpu Fang , Xiaodan Liang , Wenxiong Kang , Zhenguo Li

Attribute graphs are ubiquitous in multimedia applications, and graph representation learning (GRL) has been successful in analyzing attribute graph data. However, incomplete graph data and missing node attributes can have a negative impact…

机器学习 · 计算机科学 2023-05-09 Xiaochuan Zhang , Mengran Li , Ye Wang , Haojun Fei