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Advanced visual localization techniques encompass image retrieval challenges and 6 Degree-of-Freedom (DoF) camera pose estimation, such as hierarchical localization. Thus, they must extract global and local features from input images.…

计算机视觉与模式识别 · 计算机科学 2022-12-27 Wenzheng Song , Ran Yan , Boshu Lei , Takayuki Okatani

Over these years, Correlation Filter-based Trackers (CFTs) have aroused increasing interests in the field of visual object tracking, and have achieved extremely compelling results in different competitions and benchmarks. In this paper, our…

计算机视觉与模式识别 · 计算机科学 2015-09-21 Zhe Chen , Zhibin Hong , Dacheng Tao

We propose a novel method for salient object detection in different images. Our method integrates spatial features for efficient and robust representation to capture meaningful information about the salient objects. We then train a…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Abdullah J. Alzahrani , Hina Afridi

Graph-based collaborative filtering has been established as a prominent approach in recommendation systems, leveraging the inherent graph topology of user-item interactions to model high-order connectivity patterns and enhance…

信息检索 · 计算机科学 2025-03-21 Fan Huang , Wei Wang

Recently using convolutional neural networks (CNNs) has gained popularity in visual tracking, due to its robust feature representation of images. Recent methods perform online tracking by fine-tuning a pre-trained CNN model to the specific…

计算机视觉与模式识别 · 计算机科学 2017-08-15 Tianyu Yang , Antoni B. Chan

While the fine-grained visual categorization (FGVC) problems have been greatly developed in the past years, the Ultra-fine-grained visual categorization (Ultra-FGVC) problems have been understudied. FGVC aims at classifying objects from the…

计算机视觉与模式识别 · 计算机科学 2021-09-17 Zicheng Pan , Xiaohan Yu , Miaohua Zhang , Yongsheng Gao

Generative models have shown great promise in collaborative filtering by capturing the underlying distribution of user interests and preferences. However, existing approaches struggle with inaccurate posterior approximations and…

信息检索 · 计算机科学 2025-09-08 Chengkai Liu , Yangtian Zhang , Jianling Wang , Rex Ying , James Caverlee

Graph clustering is a fundamental and challenging learning task, which is conventionally approached by grouping similar vertices based on edge structure and feature similarity.In contrast to previous methods, in this paper, we investigate…

机器学习 · 计算机科学 2024-08-13 Zhixuan Duan , Zuo Wang , Fanghui Bi

Due to the problem of performance constraints of unsupervised video object detection, its large-scale application is limited. In response to this pain point, we propose another excellent method to solve this problematic point. By…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Chao Hu , Liqiang Zhu

Convolutional neural networks (CNN) based tracking approaches have shown favorable performance in recent benchmarks. Nonetheless, the chosen CNN features are always pre-trained in different tasks and individual components in tracking…

机器人学 · 计算机科学 2019-08-27 Zheng Zhu , Wei Zou , Guan Huang , Dalong Du , Chang Huang

Multi-view unsupervised feature selection (MUFS) has recently emerged as an effective dimensionality reduction method for unlabeled multi-view data. However, most existing methods mainly use first-order similarity graphs to preserve local…

机器学习 · 计算机科学 2025-12-01 Lin Xu , Ke Li , Dongjie Wang , Fengmao Lv , Tianrui Li , Yanyong Huang

In this work, we present a federated version of the state-of-the-art Neural Collaborative Filtering (NCF) approach for item recommendations. The system, named FedNCF, enables learning without requiring users to disclose or transmit their…

信息检索 · 计算机科学 2022-02-17 Vasileios Perifanis , Pavlos S. Efraimidis

We propose a dynamic filtering strategy with large sampling field for ConvNets (LS-DFN), where the position-specific kernels learn from not only the identical position but also multiple sampled neighbor regions. During sampling, residual…

计算机视觉与模式识别 · 计算机科学 2019-09-10 Jialin Wu , Dai Li , Yu Yang , Chandrajit Bajaj , Xiangyang Ji

Feature selection aims to identify the most pattern-discriminative feature subset. In prior literature, filter (e.g., backward elimination) and embedded (e.g., Lasso) methods have hyperparameters (e.g., top-K, score thresholding) and tie to…

机器学习 · 计算机科学 2024-03-07 Wangyang Ying , Dongjie Wang , Haifeng Chen , Yanjie Fu

Recommender systems are crucial to alleviate the information overload problem in online worlds. Most of the modern recommender systems capture users' preference towards items via their interactions based on collaborative filtering…

信息检索 · 计算机科学 2019-07-17 Wenqi Fan , Yao Ma , Dawei Yin , Jianping Wang , Jiliang Tang , Qing Li

Feature selection is fundamental to robust data-centric AI, but most existing methods optimize predictive performance under a single data distribution. This often selects spurious features that fail under distribution shifts. Motivated by…

机器学习 · 计算机科学 2026-03-24 Arun Vignesh Malarkkan , Xinyuan Wang , Kunpeng Liu , Denghui Zhang , Yanjie Fu

We propose an object tracking method, SFTrack++, that smoothly learns to preserve the tracked object consistency over space and time dimensions by taking a spectral clustering approach over the graph of pixels from the video, using a fast…

计算机视觉与模式识别 · 计算机科学 2021-11-05 Elena Burceanu

This paper discusses a new type of discriminant analysis based on the orthogonal projection of data onto a generalized difference subspace (GDS). In our previous work, we have demonstrated that GDS projection works as the…

机器学习 · 计算机科学 2019-10-31 Kazuhiro Fukui , Naoya Sogi , Takumi Kobayashi , Jing-Hao Xue , Atsuto Maki

We address the problem of multi-modal object tracking in video and explore various options of fusing the complementary information conveyed by the visible (RGB) and thermal infrared (TIR) modalities including pixel-level, feature-level and…

计算机视觉与模式识别 · 计算机科学 2022-01-24 Zhangyong Tang , Tianyang Xu , Hui Li , Xiao-Jun Wu , Xuefeng Zhu , Josef Kittler

In practical applications, multi-view data depicting objectives from assorted perspectives can facilitate the accuracy increase of learning algorithms. However, given multi-view data, there is limited work for learning discriminative node…

计算机视觉与模式识别 · 计算机科学 2022-11-18 Zhaoliang Chen , Lele Fu , Jie Yao , Wenzhong Guo , Claudia Plant , Shiping Wang