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Related papers: Analysis of Sampling Strategies for Implicit 3D Re…

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With the advent of deep neural networks, learning-based approaches for 3D reconstruction have gained popularity. However, unlike for images, in 3D there is no canonical representation which is both computationally and memory efficient yet…

Computer Vision and Pattern Recognition · Computer Science 2019-05-01 Lars Mescheder , Michael Oechsle , Michael Niemeyer , Sebastian Nowozin , Andreas Geiger

Active Learning is concerned with the question of how to identify the most useful samples for a Machine Learning algorithm to be trained with. When applied correctly, it can be a very powerful tool to counteract the immense data…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Lukas Hahn , Lutz Roese-Koerner , Peet Cremer , Urs Zimmermann , Ori Maoz , Anton Kummert

Stochastic gradient descent samples uniformly the training set to build an unbiased gradient estimate with a limited number of samples. However, at a given step of the training process, some data are more helpful than others to continue…

Machine Learning · Computer Science 2023-03-30 Thibault Lahire

Offline evaluation plays a central role in benchmarking recommender systems when online testing is impractical or risky. However, it is susceptible to two key sources of bias: exposure bias, where users only interact with items they are…

Information Retrieval · Computer Science 2025-08-12 Bruno L. Pereira , Alan Said , Rodrygo L. T. Santos

This comprehensive review examines the evolution and the current state of the art in three-dimensional (3D) reconstruction techniques in manufacturing applications. The analysis covers both traditional approaches and emerging deep learning…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Chialoon Cheng , Kaijun liu , Zhiyang Liu , Marcelo H Ang

There has been a debate in 3D medical image segmentation on whether to use 2D or 3D networks, where both pipelines have advantages and disadvantages. 2D methods enjoy a low inference time and greater transfer-ability while 3D methods are…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Qihang Yu , Yingda Xia , Lingxi Xie , Elliot K. Fishman , Alan L. Yuille

Object-level 3D reconstruction play important roles across domains such as cultural heritage digitization, industrial manufacturing, and virtual reality. However, existing Gaussian Splatting-based approaches generally rely on full-scene…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Shuai Guo , Ao Guo , Junchao Zhao , Qi Chen , Yuxiang Qi , Zechuan Li , Dong Chen , Tianjia Shao , Mingliang Xu

In this article we consider the problem of choosing an optimal sampling scheme for the regression problem simultaneously with that of model selection. We consider a batch type approach and an on-line approach following algorithms recently…

Statistics Theory · Mathematics 2018-01-30 Ana Karina Fermin , Carenne Ludeña

One of the challenges in online reinforcement learning (RL) is that the agent needs to trade off the exploration of the environment and the exploitation of the samples to optimize its behavior. Whether we optimize for regret, sample…

Machine Learning · Computer Science 2021-11-19 Jean Tarbouriech , Matteo Pirotta , Michal Valko , Alessandro Lazaric

We introduce a new problem of retrieving 3D models that are deformable to a given query shape and present a novel deep deformation-aware embedding to solve this retrieval task. 3D model retrieval is a fundamental operation for recovering a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-03 Mikaela Angelina Uy , Jingwei Huang , Minhyuk Sung , Tolga Birdal , Leonidas Guibas

Magnetic resonance imaging (MRI) acquisition, reconstruction, and segmentation are usually processed independently in the conventional practice of MRI workflow. It is easy to notice that there are significant relevances among these tasks…

Image and Video Processing · Electrical Eng. & Systems 2021-05-17 Zhiwen Wang , Wenjun Xia , Zexin Lu , Yongqiang Huang , Yan Liu , Hu Chen , Jiliu Zhou , Yi Zhang

Causal confusion is a phenomenon where an agent learns a policy that reflects imperfect spurious correlations in the data. Such a policy may falsely appear to be optimal during training if most of the training data contain such spurious…

Machine Learning · Computer Science 2023-12-29 Gunshi Gupta , Tim G. J. Rudner , Rowan Thomas McAllister , Adrien Gaidon , Yarin Gal

Point clouds upsampling is a challenging issue to generate dense and uniform point clouds from the given sparse input. Most existing methods either take the end-to-end supervised learning based manner, where large amounts of pairs of sparse…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Wenbo Zhao , Xianming Liu , Zhiwei Zhong , Junjun Jiang , Wei Gao , Ge Li , Xiangyang Ji

We reconsider randomized algorithms for the low-rank approximation of symmetric positive semi-definite (SPSD) matrices such as Laplacian and kernel matrices that arise in data analysis and machine learning applications. Our main results…

Machine Learning · Computer Science 2013-06-05 Alex Gittens , Michael W. Mahoney

Masked reconstruction serves as a fundamental pretext task for self-supervised learning, enabling the model to enhance its feature extraction capabilities by reconstructing the masked segments from extensive unlabeled data. In human…

Human-Computer Interaction · Computer Science 2023-12-08 Jinqiang Wang , Tao Zhu , Huansheng Ning

Conventional 3D object detection approaches concentrate on bounding boxes representation learning with several parameters, i.e., localization, dimension, and orientation. Despite its popularity and universality, such a straightforward…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Xuelin Qian , Li Wang , Yi Zhu , Li Zhang , Yanwei Fu , Xiangyang Xue

We propose a self-supervised learning method using multiple sampling strategies to obtain general-purpose audio representation. Multiple sampling strategies are used in the proposed method to construct contrastive losses from different…

Sound · Computer Science 2025-05-27 Ibuki Kuroyanagi , Tatsuya Komatsu

Deep metric learning aims to construct an embedding space where samples of the same class are close to each other, while samples of different classes are far away from each other. Most existing deep metric learning methods attempt to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Liu Pingping , Liu Zetong , Lang Yijun , Zhou Qiuzhan , Li Qingliang

3D reconstruction from single view images is an ill-posed problem. Inferring the hidden regions from self-occluded images is both challenging and ambiguous. We propose a two-pronged approach to address these issues. To better incorporate…

Computer Vision and Pattern Recognition · Computer Science 2019-03-27 Priyanka Mandikal , K L Navaneet , Mayank Agarwal , R. Venkatesh Babu

We propose information-directed sampling -- a new approach to online optimization problems in which a decision-maker must balance between exploration and exploitation while learning from partial feedback. Each action is sampled in a manner…

Machine Learning · Computer Science 2017-07-10 Daniel Russo , Benjamin Van Roy