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Generating realistic images is difficult, and many formulations for this task have been proposed recently. If we restrict the task to that of generating a particular class of images, however, the task becomes more tractable. That is to say,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-06 David Berthelot , Peyman Milanfar , Ian Goodfellow

Iterative generative models, such as noise conditional score networks and denoising diffusion probabilistic models, produce high quality samples by gradually denoising an initial noise vector. However, their denoising process has many…

Machine Learning · Computer Science 2021-01-08 Eric Luhman , Troy Luhman

Deep clustering as an important branch of unsupervised representation learning focuses on embedding semantically similar samples into the identical feature space. This core demand inspires the exploration of contrastive learning and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Haifeng Xia , Hai Huang , Zhengming Ding

Sufficient supervised information is crucial for any machine learning models to boost performance. However, labeling data is expensive and sometimes difficult to obtain. Active learning is an approach to acquire annotations for data from a…

Machine Learning · Computer Science 2019-06-18 Quan Kong , Bin Tong , Martin Klinkigt , Yuki Watanabe , Naoto Akira , Tomokazu Murakami

Interpretability and small labelled datasets are key issues in the practical application of deep learning, particularly in areas such as medicine. In this paper, we present a semi-supervised technique that addresses both these issues by…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Jarrel Seah , Jennifer Tang , Andy Kitchen , Jonathan Seah

In-context Learning (ICL) is the ability of Large Language Models (LLMs) to perform new tasks when conditioned on prompts comprising a few task examples. However, ICL performance can be critically sensitive to the choice of examples. To…

Computation and Language · Computer Science 2024-02-23 Shivanshu Gupta , Clemens Rosenbaum , Ethan R. Elenberg

In this paper, we study sampling from a posterior derived from a neural network. We propose a new probabilistic model consisting of adding noise at every pre- and post-activation in the network, arguing that the resulting posterior can be…

Machine Learning · Computer Science 2024-07-22 Giovanni Piccioli , Emanuele Troiani , Lenka Zdeborová

Generative adversarial networks (GANs) have shown remarkable success in generating realistic data from some predefined prior distribution (e.g., Gaussian noises). However, such prior distribution is often independent of real data and thus…

Machine Learning · Computer Science 2020-08-04 Jiezhang Cao , Yong Guo , Qingyao Wu , Chunhua Shen , Junzhou Huang , Mingkui Tan

Generative adversarial network (GAN) has greatly improved the quality of unsupervised image generation. Previous GAN-based methods often require a large amount of high-quality training data while producing a small number (e.g., tens) of…

Computer Vision and Pattern Recognition · Computer Science 2019-09-26 Chunpeng Wu , Wei Wen , Yiran Chen , Hai Li

We propose a novel approach to learning the generative neural fields represented by linear combinations of implicit basis networks. Our algorithm learns basis networks in the form of implicit neural representations and their coefficients in…

Machine Learning · Computer Science 2023-10-31 Tackgeun You , Mijeong Kim , Jungtaek Kim , Bohyung Han

Generating images from a single sample, as a newly developing branch of image synthesis, has attracted extensive attention. In this paper, we formulate this problem as sampling from the conditional distribution of a single image, and…

Computer Vision and Pattern Recognition · Computer Science 2022-01-07 ZiCheng Zhang , CongYing Han , TianDe Guo

In this paper, we present a general method that can improve the sample quality of pre-trained likelihood based generative models. Our method constructs an energy function on the latent variable space that yields an energy function on…

Machine Learning · Computer Science 2020-06-16 Zhisheng Xiao , Qing Yan , Yali Amit

We propose Generative Probabilistic Image Colorization, a diffusion-based generative process that trains a sequence of probabilistic models to reverse each step of noise corruption. Given a line-drawing image as input, our method suggests…

Computer Vision and Pattern Recognition · Computer Science 2021-09-30 Chie Furusawa , Shinya Kitaoka , Michael Li , Yuri Odagiri

We present a novel, alternative framework for learning generative models with goal-conditioned reinforcement learning. We define two agents, a goal conditioned agent (GC-agent) and a supervised agent (S-agent). Given a user-input initial…

Machine Learning · Computer Science 2023-03-28 Mariana Vargas Vieyra , Pierre Ménard

Thanks to the recent development of deep generative models, it is becoming possible to generate high-quality images with both fidelity and diversity. However, the training of such generative models requires a large dataset. To reduce the…

Computer Vision and Pattern Recognition · Computer Science 2019-10-24 Atsuhiro Noguchi , Tatsuya Harada

Allowing effective inference of latent vectors while training GANs can greatly increase their applicability in various downstream tasks. Recent approaches, such as ALI and BiGAN frameworks, develop methods of inference of latent variables…

Machine Learning · Computer Science 2020-12-22 Yatin Dandi , Homanga Bharadhwaj , Abhishek Kumar , Piyush Rai

Current generative networks are increasingly proficient in generating high-resolution realistic images. These generative networks, especially the conditional ones, can potentially become a great tool for providing new image datasets. This…

Computer Vision and Pattern Recognition · Computer Science 2019-11-11 Victor Besnier , Himalaya Jain , Andrei Bursuc , Matthieu Cord , Patrick Pérez

Zero-shot learning (ZSL) which aims to recognize unseen classes with no labeled training sample, efficiently tackles the problem of missing labeled data in image retrieval. Nowadays there are mainly two types of popular methods for ZSL to…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Gang Yang , Jinlu Liu , Xirong Li

We demonstrate in this paper that a generative model can be designed to perform classification tasks under challenging settings, including adversarial attacks and input distribution shifts. Specifically, we propose a conditional variational…

Computer Vision and Pattern Recognition · Computer Science 2019-02-12 Houpu Yao , Malcolm Regan , Yezhou Yang , Yi Ren

Recent generative adversarial networks (GANs) are able to generate impressive photo-realistic images. However, controllable generation with GANs remains a challenging research problem. Achieving controllable generation requires semantically…

Machine Learning · Computer Science 2021-05-04 Grigorios G Chrysos , Jean Kossaifi , Zhiding Yu , Anima Anandkumar