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We give a new algorithm for learning mixtures of $k$ Gaussians (with identity covariance in $\mathbb{R}^n$) to TV error $\varepsilon$, with quasi-polynomial ($O(n^{\text{poly\,log}\left(\frac{n+k}{\varepsilon}\right)})$) time and sample…

Machine Learning · Computer Science 2025-03-05 Khashayar Gatmiry , Jonathan Kelner , Holden Lee

Learning well-separated features in high-dimensional spaces, such as text or image embeddings, is crucial for many machine learning applications. Achieving such separation can be effectively accomplished through the dispersion of…

Machine Learning · Computer Science 2025-08-27 Evgeniia Tokarchuk , Hua Chang Bakker , Vlad Niculae

We propose a 3-D material style transfer framework for reconstructing invisible (or faded) appearance properties in complex natural materials. Our algorithm addresses the technical challenge of transferring appearance properties from one…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Shashank Ranjan , Corey Toler-Franklin

Graph based representation is widely used in visual tracking field by finding correct correspondences between target parts in consecutive frames. However, most graph based trackers consider pairwise geometric relations between local parts.…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Dawei Du , Honggang Qi , Longyin Wen , Qi Tian , Qingming Huang , Siwei Lyu

Image inpainting techniques have shown promising improvement with the assistance of generative adversarial networks (GANs) recently. However, most of them often suffered from completed results with unreasonable structure or blurriness. To…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Zheng Hui , Jie Li , Xiumei Wang , Xinbo Gao

Leveraging domain knowledge including fingerprints and functional groups in molecular representation learning is crucial for chemical property prediction and drug discovery. When modeling the relation between graph structure and molecular…

Machine Learning · Computer Science 2021-03-25 Yin Fang , Haihong Yang , Xiang Zhuang , Xin Shao , Xiaohui Fan , Huajun Chen

We demonstrate that frequently appearing objects can be discovered by training randomly sampled patches from a small number of images (100 to 200) by self-supervision. Key to this approach is the pattern space, a latent space of patterns…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Hankyu Moon , Heng Hao , Sima Didari , Jae Oh Woo , Patrick Bangert

Despite the success of a number of recent techniques for visual self-supervised deep learning, there has been limited investigation into the representations that are ultimately learned. By leveraging recent advances in the comparison of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Tom George Grigg , Dan Busbridge , Jason Ramapuram , Russ Webb

Learning invariant representations from images is one of the hardest challenges facing computer vision. Spatial pooling is widely used to create invariance to spatial shifting, but it is restricted to convolutional models. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2013-03-19 Sainbayar Sukhbaatar , Takaki Makino , Kazuyuki Aihara

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

A dramatic rise in the flow of manipulated image content on the Internet has led to an aggressive response from the media forensics research community. New efforts have incorporated increased usage of techniques from computer vision and…

Computer Vision and Pattern Recognition · Computer Science 2020-01-15 Aparna Bharati , Daniel Moreira , Patrick Flynn , Anderson Rocha , Kevin Bowyer , Walter Scheirer

We propose a numerical method for compensating dispersion effects in optical coherence tomography that does not require a priori knowledge of dispersive properties of the sample. The method is based on the generalized autoconvolution…

Optics · Physics 2007-05-23 Konrad Banaszek , Aleksandr S. Radunsky , Ian A. Walmsley

Robotic object rearrangement combines the skills of picking and placing objects. When object models are unavailable, typical collision-checking models may be unable to predict collisions in partial point clouds with occlusions, making…

Robotics · Computer Science 2021-03-29 Michael Danielczuk , Arsalan Mousavian , Clemens Eppner , Dieter Fox

Ultrasound image quality has continually been improving. However, when needles or other metallic objects are operating inside the tissue, the resulting reverberation artifacts can severely corrupt the surrounding image quality. Such effects…

Image and Video Processing · Electrical Eng. & Systems 2022-03-10 Alex Ling Yu Hung , Edward Chen , John Galeotti

Recent works for attributed network clustering utilize graph convolution to obtain node embeddings and simultaneously perform clustering assignments on the embedding space. It is effective since graph convolution combines the structural and…

Machine Learning · Computer Science 2021-04-16 Shuiqiao Yang , Sunny Verma , Borui Cai , Jiaojiao Jiang , Kun Yu , Fang Chen , Shui Yu

Stereo matching estimates the disparity between a rectified image pair, which is of great importance to depth sensing, autonomous driving, and other related tasks. Previous works built cost volumes with cross-correlation or concatenation of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Xiaoyang Guo , Kai Yang , Wukui Yang , Xiaogang Wang , Hongsheng Li

In dynamic tomography the object undergoes changes while projections are being acquired sequentially in time. The resulting inconsistent set of projections cannot be used directly to reconstruct an object corresponding to a time instant.…

Image and Video Processing · Electrical Eng. & Systems 2024-01-30 Berk Iskender , Marc L. Klasky , Yoram Bresler

A critical vulnerability of supervised deep learning in high-dimensional tabular domains is "generalization collapse": models form precise decision boundaries around known training distributions but fail catastrophically when encountering…

Machine Learning · Computer Science 2026-03-10 Rajeeb Thapa Chhetri , Saurab Thapa , Avinash Kumar , Zhixiong Chen

Deep generative models provide powerful tools for distributions over complicated manifolds, such as those of natural images. But many of these methods, including generative adversarial networks (GANs), can be difficult to train, in part…

Machine Learning · Statistics 2017-11-08 Akash Srivastava , Lazar Valkov , Chris Russell , Michael U. Gutmann , Charles Sutton

We present an unsupervised learning framework for decomposing images into layers of automatically discovered object models. Contrary to recent approaches that model image layers with autoencoder networks, we represent them as explicit…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Tom Monnier , Elliot Vincent , Jean Ponce , Mathieu Aubry
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