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Given a similarity metric, contrastive methods learn a representation in which examples that are similar are pushed together and examples that are dissimilar are pulled apart. Contrastive learning techniques have been utilized extensively…

Machine Learning · Computer Science 2023-07-07 Emily Mu , John Guttag , Maggie Makar

Deep learning has achieved great success in recent years with the aid of advanced neural network structures and large-scale human-annotated datasets. However, it is often costly and difficult to accurately and efficiently annotate…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Chen Feng , Ioannis Patras

The efficient utilization of wind power by wind turbines relies on the ability of their pitch systems to adjust blade pitch angles in response to varying wind speeds. However, the presence of multiple health conditions in the pitch system…

Machine Learning · Computer Science 2023-08-14 Zixuan Wang , Bo Qin , Mengxuan Li , Chenlu Zhan , Mark D. Butala , Peng Peng , Hongwei Wang

We introduce Cluster Contrast (CueCo), a novel approach to unsupervised visual representation learning that effectively combines the strengths of contrastive learning and clustering methods. Inspired by recent advancements, CueCo is…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Nikolaos Giakoumoglou , Tania Stathaki

Convolutional neural networks can be trained to perform histology slide classification using weak annotations with multiple instance learning (MIL). However, given the paucity of labeled histology data, direct application of MIL can easily…

Computer Vision and Pattern Recognition · Computer Science 2019-11-05 Ming Y. Lu , Richard J. Chen , Jingwen Wang , Debora Dillon , Faisal Mahmood

Multimodal contrastive learning is a methodology for linking different data modalities; the canonical example is linking image and text data. The methodology is typically framed as the identification of a set of encoders, one for each…

Machine Learning · Statistics 2025-06-02 Ricardo Baptista , Andrew M. Stuart , Son Tran

Contrastive learning has emerged as a transformative method for learning effective visual representations through the alignment of image and text embeddings. However, pairwise similarity computation in contrastive loss between image and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Sachin Mehta , Maxwell Horton , Fartash Faghri , Mohammad Hossein Sekhavat , Mahyar Najibi , Mehrdad Farajtabar , Oncel Tuzel , Mohammad Rastegari

Person re-identification is challenging due to the large variations of pose, illumination, occlusion and camera view. Owing to these variations, the pedestrian data is distributed as highly-curved manifolds in the feature space, despite the…

Computer Vision and Pattern Recognition · Computer Science 2016-11-02 Hailin Shi , Yang Yang , Xiangyu Zhu , Shengcai Liao , Zhen Lei , Weishi Zheng , Stan Z. Li

We address the problem of generalized category discovery (GCD) that aims to partition a partially labeled collection of images; only a small part of the collection is labeled and the total number of target classes is unknown. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Sua Choi , Dahyun Kang , Minsu Cho

Despite significant advances in clustering methods in recent years, the outcome of clustering of a natural image dataset is still unsatisfactory due to two important drawbacks. Firstly, clustering of images needs a good feature…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Dipanjan Das , Ratul Ghosh , Brojeshwar Bhowmick

Learning scientific document representations can be substantially improved through contrastive learning objectives, where the challenge lies in creating positive and negative training samples that encode the desired similarity semantics.…

Computation and Language · Computer Science 2022-10-20 Malte Ostendorff , Nils Rethmeier , Isabelle Augenstein , Bela Gipp , Georg Rehm

Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Xuefei Zhe , Shifeng Chen , Hong Yan

Understanding of spatial attributes is central to effective 3D radiology image analysis where crop-based learning is the de facto standard. Given an image patch, its core spatial properties (e.g., position & orientation) provide helpful…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Yejia Zhang , Nishchal Sapkota , Pengfei Gu , Yaopeng Peng , Hao Zheng , Danny Z. Chen

Machine unlearning, the efficient deletion of the impact of specific data in a trained model, remains a challenging problem. Current machine unlearning approaches that focus primarily on data-centric or weight-based strategies frequently…

Machine Learning · Computer Science 2025-08-07 Thang Duc Tran , Thai Hoang Le

Recently, deep metric learning techniques received attention, as the learned distance representations are useful to capture the similarity relationship among samples and further improve the performance of various of supervised or…

Computer Vision and Pattern Recognition · Computer Science 2023-04-21 Zhiyuan Li , Anca Ralescu

Dense prediction tasks such as segmentation and detection of pathological entities hold crucial clinical value in computational pathology workflows. However, obtaining dense annotations on large cohorts is usually tedious and expensive.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Jingwei Zhang , Saarthak Kapse , Ke Ma , Prateek Prasanna , Maria Vakalopoulou , Joel Saltz , Dimitris Samaras

Background and Objective: Given the high heterogeneity and clinical diversity of cancer, substantial variations exist in multi-omics data and clinical features across different cancer subtypes. Methods: We propose a model, named DEDUCE,…

Machine Learning · Computer Science 2024-10-29 Liangrui Pan , Xiang Wang , Qingchun Liang , Jiandong Shang , Wenjuan Liu , Liwen Xu , Shaoliang Peng

Contrastive self-supervised learning has outperformed supervised pretraining on many downstream tasks like segmentation and object detection. However, current methods are still primarily applied to curated datasets like ImageNet. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Wouter Van Gansbeke , Simon Vandenhende , Stamatios Georgoulis , Luc Van Gool

Learning robust representations to discriminate cell phenotypes based on microscopy images is important for drug discovery. Drug development efforts typically analyse thousands of cell images to screen for potential treatments. Early works…

Computer Vision and Pattern Recognition · Computer Science 2021-12-28 Alexis Perakis , Ali Gorji , Samriddhi Jain , Krishna Chaitanya , Simone Rizza , Ender Konukoglu

We present a framework for discriminative sequence classification where the learner works directly in the high dimensional predictor space of all subsequences in the training set. This is possible by employing a new coordinate-descent…

Machine Learning · Computer Science 2010-08-04 Georgiana Ifrim , Carsten Wiuf