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Counterfactual Learning to Rank (LTR) algorithms learn a ranking model from logged user interactions, often collected using a production system. Employing such an offline learning approach has many benefits compared to an online one, but it…

机器学习 · 计算机科学 2020-05-22 Rolf Jagerman , Maarten de Rijke

In real-world data, long-tailed data distribution is common, making it challenging for models trained on empirical risk minimisation to learn and classify tail classes effectively. While many studies have sought to improve long tail…

计算机视觉与模式识别 · 计算机科学 2025-01-24 Ziheng Wang , Toni Lassila , Sharib Ali

Through recognizing causal subgraphs, causal graph learning (CGL) has risen to be a promising approach for improving the generalizability of graph neural networks under out-of-distribution (OOD) scenarios. However, the empirical successes…

机器学习 · 计算机科学 2025-07-02 Yujia Yin , Tianyi Qu , Zihao Wang , Yifan Chen

Despite the great success object detection and segmentation models have achieved in recognizing individual objects in images, performance on cognitive tasks such as image caption, semantic image retrieval, and visual QA is far from…

计算机视觉与模式识别 · 计算机科学 2024-01-25 Weilin Cong , William Wang , Wang-Chien Lee

Attempting to fully exploit the rich information of topological structure and node features for attributed graph, we introduce self-supervised learning mechanism to graph representation learning and propose a novel Self-supervised Consensus…

社会与信息网络 · 计算机科学 2021-08-12 Changshu Liu , Liangjian Wen , Zhao Kang , Guangchun Luo , Ling Tian

In recent years, Convolutional Neural Network (CNN) based trackers have achieved state-of-the-art performance on multiple benchmark datasets. Most of these trackers train a binary classifier to distinguish the target from its background.…

计算机视觉与模式识别 · 计算机科学 2020-11-10 Lijian Lin , Haosheng Chen , Yanjie Liang , Yan Yan , Hanzi Wang

Scene Graph Generation (SGG) is a task that encodes visual relationships between objects in images as graph structures. SGG shows significant promise as a foundational component for downstream tasks, such as reasoning for embodied agents.…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Maëlic Neau , Paulo E. Santos , Anne-Gwenn Bosser , Cédric Buche , Akihiro Sugimoto

In the field of 3D scene understanding, 3D scene graphs have emerged as a new scene representation that combines geometric and semantic information about objects and their relationships. However, learning semantic 3D scene graphs in a fully…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Sebastian Koch , Pedro Hermosilla , Narunas Vaskevicius , Mirco Colosi , Timo Ropinski

We present a uniform analysis of biased stochastic gradient methods for minimizing convex, strongly convex, and non-convex composite objectives, and identify settings where bias is useful in stochastic gradient estimation. The framework we…

最优化与控制 · 数学 2020-02-28 Derek Driggs , Jingwei Liang , Carola-Bibiane Schönlieb

In this paper, a robust weighted score for unbalanced data (ROWSU) is proposed for selecting the most discriminative feature for high dimensional gene expression binary classification with class-imbalance problem. The method addresses one…

机器学习 · 统计学 2024-01-24 Zardad Khan , Amjad Ali , Saeed Aldahmani

Deep learning techniques have led to remarkable breakthroughs in the field of generic object detection and have spawned a lot of scene-understanding tasks in recent years. Scene graph has been the focus of research because of its powerful…

计算机视觉与模式识别 · 计算机科学 2022-06-23 Guangming Zhu , Liang Zhang , Youliang Jiang , Yixuan Dang , Haoran Hou , Peiyi Shen , Mingtao Feng , Xia Zhao , Qiguang Miao , Syed Afaq Ali Shah , Mohammed Bennamoun

Self-supervised learning (SSL) as an effective paradigm of representation learning has achieved tremendous success on various curated datasets in diverse scenarios. Nevertheless, when facing the long-tailed distribution in real-world…

机器学习 · 计算机科学 2023-10-27 Zhihan Zhou , Jiangchao Yao , Feng Hong , Ya Zhang , Bo Han , Yanfeng Wang

Generative models are popular for medical imaging tasks such as anomaly detection, feature extraction, data visualization, or image generation. Since they are parameterized by deep learning models, they are often sensitive to distribution…

机器学习 · 计算机科学 2025-03-25 Miguel López-Pérez , Marco Miani , Valery Naranjo , Søren Hauberg , Aasa Feragen

This paper contributes to a development of randomized methods for neural networks. The proposed learner model is generated incrementally by stochastic configuration (SC) algorithms, termed as Stochastic Configuration Networks (SCNs). In…

神经与进化计算 · 计算机科学 2018-02-14 Dianhui Wang , Ming Li

Contrastive learning is among the most successful methods for visual representation learning, and its performance can be further improved by jointly performing clustering on the learned representations. However, existing methods for joint…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Shunjie-Fabian Zheng , JaeEun Nam , Emilio Dorigatti , Bernd Bischl , Shekoofeh Azizi , Mina Rezaei

Stochastic gradient descent (SGD) is a popular stochastic optimization method in machine learning. Traditional parallel SGD algorithms, e.g., SimuParallel SGD, often require all nodes to have the same performance or to consume equal…

机器学习 · 计算机科学 2017-08-17 Cheng Daning , Li Shigang , Zhang Yunquan

Recently, the paradigm of unfolding iterative algorithms into finite-length feed-forward neural networks has achieved a great success in the area of sparse recovery. Benefit from available training data, the learned networks have achieved…

机器学习 · 计算机科学 2019-10-14 Yulun Jiang , Lei Yu , Haijian Zhang , Zhou Liu

Self-supervised contrastive learning (SSCL) has achieved significant milestones in remote sensing image (RSI) understanding. Its essence lies in designing an unsupervised instance discrimination pretext task to extract image features from a…

机器学习 · 计算机科学 2023-11-29 Zhaoyang Zhang , Zhen Ren , Chao Tao , Yunsheng Zhang , Chengli Peng , Haifeng Li

Recently, much exertion has been paid to design graph self-supervised methods to obtain generalized pre-trained models, and adapt pre-trained models onto downstream tasks through fine-tuning. However, there exists an inherent gap between…

机器学习 · 计算机科学 2023-08-16 Yun Zhu , Jianhao Guo , Siliang Tang

Learning discriminative image representations plays a vital role in long-tailed image classification because it can ease the classifier learning in imbalanced cases. Given the promising performance contrastive learning has shown recently in…

计算机视觉与模式识别 · 计算机科学 2021-03-29 Peng Wang , Kai Han , Xiu-Shen Wei , Lei Zhang , Lei Wang
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