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A typical Vertical Federated Learning (VFL) scenario involves several participants collaboratively training a machine learning model, where each party has different features for the same samples, with labels held exclusively by one party.…

Machine Learning · Computer Science 2026-03-05 Wenhao Jiang , Shaojing Fu , Yuchuan Luo , Lin Liu

Deep learning approaches often require huge datasets to achieve good generalization. This complicates its use in tasks like image-based medical diagnosis, where the small training datasets are usually insufficient to learn appropriate data…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Roberto Vega , Pouneh Gorji , Zichen Zhang , Xuebin Qin , Abhilash Rakkunedeth Hareendranathan , Jeevesh Kapur , Jacob L. Jaremko , Russell Greiner

This paper introduces CARLA (spatially Constrained Anchor-based Recursive Location Assignment), a recursive algorithm for assigning secondary or any activity locations in activity-based travel models. CARLA minimizes distance deviations…

Other Computer Science · Computer Science 2025-09-24 Felix Petre , Lasse Bienzeisler , Bernhard Friedrich

In the context of medical Augmented Reality (AR) applications, object tracking is a key challenge and requires a significant amount of annotation masks. As segmentation foundation models like the Segment Anything Model (SAM) begin to…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Michael Schwimmbeck , Serouj Khajarian , Konstantin Holzapfel , Johannes Schmidt , Stefanie Remmele

One-stage detector basically formulates object detection as dense classification and localization. The classification is usually optimized by Focal Loss and the box location is commonly learned under Dirac delta distribution. A recent trend…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Xiang Li , Wenhai Wang , Lijun Wu , Shuo Chen , Xiaolin Hu , Jun Li , Jinhui Tang , Jian Yang

Semi-supervised object detection (SSOD) aims to facilitate the training and deployment of object detectors with the help of a large amount of unlabeled data. Though various self-training based and consistency-regularization based SSOD…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Binghui Chen , Pengyu Li , Xiang Chen , Biao Wang , Lei Zhang , Xian-Sheng Hua

Large-scale multi-label classification datasets are commonly, and perhaps inevitably, partially annotated. That is, only a small subset of labels are annotated per sample. Different methods for handling the missing labels induce different…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Emanuel Ben-Baruch , Tal Ridnik , Itamar Friedman , Avi Ben-Cohen , Nadav Zamir , Asaf Noy , Lihi Zelnik-Manor

Even with the luxury of having abundant data, multi-label classification is widely known to be a challenging task to address. This work targets the problem of multi-label meta-learning, where a model learns to predict multiple labels within…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Christian Simon , Piotr Koniusz , Mehrtash Harandi

Clustering-based methods, which alternate between the generation of pseudo labels and the optimization of the feature extraction network, play a dominant role in both unsupervised learning (USL) and unsupervised domain adaptive (UDA) person…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Tianyi Yan , Kuan Zhu , Haiyun guo , Guibo Zhu , Ming Tang , Jinqiao Wang

Dense retrieval systems increasingly need to handle complex queries. In many realistic settings, users express intent through long instructions or task-specific descriptions, while target documents remain relatively simple and static. This…

Information Retrieval · Computer Science 2026-04-07 Seiji Maekawa , Moin Aminnaseri , Pouya Pezeshkpour , Estevam Hruschka

Multi-task learning promises better model generalization on a target task by jointly optimizing it with an auxiliary task. However, the current practice requires additional labeling efforts for the auxiliary task, while not guaranteeing…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Menelaos Kanakis , Thomas E. Huang , David Bruggemann , Fisher Yu , Luc Van Gool

We propose using five data-driven community detection approaches from social networks to partition the label space for the task of multi-label classification as an alternative to random partitioning into equal subsets as performed by…

Machine Learning · Computer Science 2016-08-24 Piotr Szymański , Tomasz Kajdanowicz , Kristian Kersting

Average precision (AP) loss has recently shown promising performance on the dense object detection task. However,a deep understanding of how AP loss affects the detector from a pairwise ranking perspective has not yet been developed.In this…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Dongli Xu , Jinhong Deng , Wen Li

Deep metric learning has yielded impressive results in tasks such as clustering and image retrieval by leveraging neural networks to obtain highly discriminative feature embeddings, which can be used to group samples into different classes.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Ismail Elezi , Sebastiano Vascon , Alessandro Torcinovich , Marcello Pelillo , Laura Leal-Taixe

Most existing object detectors suffer from class imbalance problems that hinder balanced performance. In particular, anchor free object detectors have to solve the background imbalance problem due to detection in a per-pixel prediction…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Hopyong Gil , Sangwoo Park , Yusang Park , Wongoo Han , Juyean Hong , Juneyoung Jung

In Multi-Label Text Classification (MLTC), one sample can belong to more than one class. It is observed that most MLTC tasks, there are dependencies or correlations among labels. Existing methods tend to ignore the relationship among…

Computation and Language · Computer Science 2020-03-27 Ankit Pal , Muru Selvakumar , Malaikannan Sankarasubbu

Active Domain Adaptation (ADA) queries the labels of a small number of selected target samples to help adapting a model from a source domain to a target domain. The local context of queried data is important, especially when the domain gap…

Machine Learning · Computer Science 2023-08-29 Tao Sun , Cheng Lu , Haibin Ling

Despite the recent advances in multi-task learning of dense prediction problems, most methods rely on expensive labelled datasets. In this paper, we present a label efficient approach and look at jointly learning of multiple dense…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Wei-Hong Li , Xialei Liu , Hakan Bilen

Current anchor-free object detectors are quite simple and effective yet lack accurate label assignment methods, which limits their potential in competing with classic anchor-based models that are supported by well-designed assignment…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Jiachen Li , Bowen Cheng , Rogerio Feris , Jinjun Xiong , Thomas S. Huang , Wen-Mei Hwu , Humphrey Shi

Learning from sparse labels is a challenge commonplace in the medical domain. This is due to numerous factors, such as annotation cost, and is especially true for newly introduced tasks. When dense pixel-level annotations are needed, this…