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In this paper, we make a bold attempt toward an ambitious task: given a pre-trained classifier, we aim to reconstruct an image generator, without relying on any data samples. From a black-box perspective, this challenge seems intractable,…

机器学习 · 计算机科学 2023-12-06 Runpeng Yu , Xinchao Wang

We propose a novel generative saliency prediction framework that adopts an informative energy-based model as a prior distribution. The energy-based prior model is defined on the latent space of a saliency generator network that generates…

计算机视觉与模式识别 · 计算机科学 2023-06-28 Jing Zhang , Jianwen Xie , Nick Barnes , Ping Li

Modern generative models are usually designed to match target distributions directly in the data space, where the intrinsic dimension of data can be much lower than the ambient dimension. We argue that this discrepancy may contribute to the…

机器学习 · 计算机科学 2020-07-02 Zijun Zhang , Ruixiang Zhang , Zongpeng Li , Yoshua Bengio , Liam Paull

Diffusion models are typically trained using score matching, a learning objective agnostic to the underlying noising process that guides the model. This paper argues that Markov noising processes enjoy an advantage over alternatives, as the…

机器学习 · 统计学 2025-05-27 Zheyang Shen , Huihui Wang , Marina Riabiz , Chris J. Oates

The diffusion probabilistic generative models are widely used to generate high-quality data. Though they can synthetic data that does not exist in the training set, the rationale behind such generalization is still unexplored. In this…

机器学习 · 计算机科学 2023-05-25 Mingyang Yi , Jiacheng Sun , Zhenguo Li

This paper proposes an iterative generative model for solving the automatic colorization problem. Although previous researches have shown the capability to generate plausible color, the edge color overflow and the requirement of the…

计算机视觉与模式识别 · 计算机科学 2020-12-29 Kai Hong , Jin Li , Wanyun Li , Cailian Yang , Minghui Zhang , Yuhao Wang , Qiegen Liu

Text-guided semantic manipulation refers to semantically editing an image generated from a source prompt to match a target prompt, enabling the desired semantic changes (e.g., addition, removal, and style transfer) while preserving…

计算机视觉与模式识别 · 计算机科学 2025-07-02 Yu Hong , Xiao Cai , Pengpeng Zeng , Shuai Zhang , Jingkuan Song , Lianli Gao , Heng Tao Shen

We propose an approach to address two issues that commonly occur during training of unsupervised GANs. First, since GANs use only a continuous latent distribution to embed multiple classes or clusters of data, they often do not correctly…

机器学习 · 计算机科学 2018-03-13 Youngjin Kim , Minjung Kim , Gunhee Kim

Inverse generation problems, such as denoising without ground truth observations, is a critical challenge in many scientific inquiries and real-world applications. While recent advances in generative models like diffusion models,…

机器学习 · 计算机科学 2025-02-18 Yuchen Zhang , Jian Zhou

Data-driven generative modeling has made remarkable progress by leveraging the power of deep neural networks. A reoccurring challenge is how to enable a model to generate a rich variety of samples from the entire target distribution, rather…

图形学 · 计算机科学 2019-09-04 Nadav Schor , Oren Katzir , Hao Zhang , Daniel Cohen-Or

Diffusion models generate new samples by progressively decreasing the noise from the initially provided random distribution. This inference procedure generally utilizes a trained neural network numerous times to obtain the final output,…

Fueled by the expressive power of deep neural networks, normalizing flows have achieved spectacular success in generative modeling, or learning to draw new samples from a distribution given a finite dataset of training samples. Normalizing…

机器学习 · 计算机科学 2023-05-05 Yuehaw Khoo , Michael Lindsey , Hongli Zhao

Inspired by recent work in meta-learning and generative teaching networks, we propose a framework called Generative Conversational Networks, in which conversational agents learn to generate their own labelled training data (given some seed…

Generative flow networks (GFlowNets) are a method for learning a stochastic policy for generating compositional objects, such as graphs or strings, from a given unnormalized density by sequences of actions, where many possible action…

机器学习 · 计算机科学 2023-10-05 Nikolay Malkin , Moksh Jain , Emmanuel Bengio , Chen Sun , Yoshua Bengio

Generative AI has made impressive strides in enabling users to create diverse and realistic visual content such as images, videos, and audio. However, training generative models on large centralized datasets can pose challenges in terms of…

机器学习 · 计算机科学 2025-10-03 Fiona Victoria Stanley Jothiraj , Afra Mashhadi

Modern Generative Adversarial Networks are capable of creating artificial, photorealistic images from latent vectors living in a low-dimensional learned latent space. It has been shown that a wide range of images can be projected into this…

计算机视觉与模式识别 · 计算机科学 2020-09-15 Jonas Wulff , Antonio Torralba

The Generative Flow Network is a probabilistic framework where an agent learns a stochastic policy for object generation, such that the probability of generating an object is proportional to a given reward function. Its effectiveness has…

机器学习 · 计算机科学 2022-10-10 Ling Pan , Dinghuai Zhang , Aaron Courville , Longbo Huang , Yoshua Bengio

Diffusion probabilistic models (DPMs), widely recognized for their potential to generate high-quality samples, tend to go unnoticed in representation learning. While recent progress has highlighted their potential for capturing visual…

机器学习 · 计算机科学 2025-05-09 Dingshuo Chen , Shuchen Xue , Liuji Chen , Yingheng Wang , Qiang Liu , Shu Wu , Zhi-Ming Ma , Liang Wang

The recently proposed generative flow networks (GFlowNets) are a method of training a policy to sample compositional discrete objects with probabilities proportional to a given reward via a sequence of actions. GFlowNets exploit the…

机器学习 · 计算机科学 2024-02-27 Daniil Tiapkin , Nikita Morozov , Alexey Naumov , Dmitry Vetrov

We study a deep learning inspired formulation for the blind demodulation problem, which is the task of recovering two unknown vectors from their entrywise multiplication. We consider the case where the unknown vectors are in the range of…

最优化与控制 · 数学 2019-05-30 Paul Hand , Babhru Joshi