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While GAN is a powerful model for generating images, its inability to infer a latent space directly limits its use in applications requiring an encoder. Our paper presents a simple architectural setup that combines the generative…

机器学习 · 计算机科学 2020-12-09 Yuri Feigin , Hedva Spitzer , Raja Giryes

Recent works demonstrate that GNN models are vulnerable to adversarial attacks, which refer to imperceptible perturbation on the graph structure and node features. Among various GNN models, graph contrastive learning (GCL) based methods…

机器学习 · 计算机科学 2023-06-27 Yeonjun In , Kanghoon Yoon , Chanyoung Park

We propose a new method for event extraction (EE) task based on an imitation learning framework, specifically, inverse reinforcement learning (IRL) via generative adversarial network (GAN). The GAN estimates proper rewards according to the…

计算与语言 · 计算机科学 2018-04-24 Tongtao Zhang , Heng Ji

Noise and artifacts are intrinsic to low dose CT (LDCT) data acquisition, and will significantly affect the imaging performance. Perfect noise removal and image restoration is intractable in the context of LDCT due to the statistical and…

医学物理 · 物理学 2019-07-24 Wenchao Du , Hu Chen , Peixi Liao , Hongyu Yang , Ge Wang , Yi Zhang

In traditional generative modeling, good data representation is very often a base for a good machine learning model. It can be linked to good representations encoding more explanatory factors that are hidden in the original data. With the…

机器学习 · 计算机科学 2019-04-01 Maciej Zamorski , Adrian Zdobylak , Maciej Zięba , Jerzy Świątek

Unsupervised learning with generative adversarial networks (GANs) has proven to be hugely successful. Regular GANs hypothesize the discriminator as a classifier with the sigmoid cross entropy loss function. However, we found that this loss…

计算机视觉与模式识别 · 计算机科学 2018-09-24 Xudong Mao , Qing Li , Haoran Xie , Raymond Y. K. Lau , Zhen Wang , Stephen Paul Smolley

The widespread adoption of learning-based methods for the LiDAR makes autonomous vehicles vulnerable to adversarial attacks through adversarial \textit{point injections (PiJ)}. It poses serious security challenges for navigation and map…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Prashant Kumar , Dheeraj Vattikonda , Kshitij Madhav Bhat , Kunal Dargan , Prem Kalra

The stability-plasticity dilemma is a major challenge in continual learning, as it involves balancing the conflicting objectives of maintaining performance on previous tasks while learning new tasks. In this paper, we propose the…

机器学习 · 计算机科学 2024-03-06 Haneol Kang , Dong-Wan Choi

Energy-saving LIDAR camera for short distances estimates an object's distance using temporally intensity-coded laser light pulses and calculates the maximum correlation with the back-scattered pulse. Though on low power, the backs-scattered…

计算机视觉与模式识别 · 计算机科学 2020-12-17 Nir Diamant , Tal Mund , Ohad Menashe , Aviad Zabatani , Alex M. Bronstein

This study presents an adversarial method for anomaly detection in real-world applications, leveraging the power of generative adversarial neural networks (GANs) through cycle consistency in reconstruction error. Previous methods suffer…

机器学习 · 计算机科学 2024-05-01 Zahra Dehghanian , Saeed Saravani , Maryam Amirmazlaghani , Mohammad Rahmati

Learning low-dimensional representations of networks has proved effective in a variety of tasks such as node classification, link prediction and network visualization. Existing methods can effectively encode different structural properties…

机器学习 · 计算机科学 2017-11-22 Quanyu Dai , Qiang Li , Jian Tang , Dan Wang

A key challenge in computer vision and deep learning is the definition of robust strategies for the detection of adversarial examples. Here, we propose the adoption of ensemble approaches to leverage the effectiveness of multiple detectors…

计算机视觉与模式识别 · 计算机科学 2022-02-16 Francesco Craighero , Fabrizio Angaroni , Fabio Stella , Chiara Damiani , Marco Antoniotti , Alex Graudenzi

Generative adversarial networks (GANs) have shown great success in applications such as image generation and inpainting. However, they typically require large datasets, which are often not available, especially in the context of prediction…

机器学习 · 计算机科学 2020-01-31 Daniel Stoller , Sebastian Ewert , Simon Dixon

Image clustering has recently attracted significant attention due to the increased availability of unlabelled datasets. The efficiency of traditional clustering algorithms heavily depends on the distance functions used and the…

计算机视觉与模式识别 · 计算机科学 2024-09-30 Foivos Ntelemis , Yaochu Jin , Spencer A. Thomas

Generative adversarial networks (GANs) provide a way to learn deep representations without extensively annotated training data. They achieve this through deriving backpropagation signals through a competitive process involving a pair of…

计算机视觉与模式识别 · 计算机科学 2018-02-14 Antonia Creswell , Tom White , Vincent Dumoulin , Kai Arulkumaran , Biswa Sengupta , Anil A Bharath

Generative Adversarial Networks (GAN) have shown promising results on a wide variety of complex tasks. Recent experiments show adversarial training provides useful gradients to the generator that helps attain better performance. In this…

机器学习 · 计算机科学 2020-04-21 Litu Rout

Generative adversarial networks (GANs) are a framework that learns a generative distribution through adversarial training. Recently, their class-conditional extensions (e.g., conditional GAN (cGAN) and auxiliary classifier GAN (AC-GAN))…

计算机视觉与模式识别 · 计算机科学 2019-05-06 Takuhiro Kaneko , Yoshitaka Ushiku , Tatsuya Harada

Generative adversarial networks (GANs) provide an algorithmic framework for constructing generative models with several appealing properties: they do not require a likelihood function to be specified, only a generating procedure; they…

机器学习 · 统计学 2017-02-28 Shakir Mohamed , Balaji Lakshminarayanan

Disentanglement, a critical concern in interpretable machine learning, has also garnered significant attention from the computer vision community. Many existing GAN-based class disentanglement (unsupervised) approaches, such as InfoGAN and…

计算机视觉与模式识别 · 计算机科学 2024-06-03 Jiangwei Zhao , Zejia Liu , Xiaohan Guo , Lili Pan

Adversarial learning of probabilistic models has recently emerged as a promising alternative to maximum likelihood. Implicit models such as generative adversarial networks (GAN) often generate better samples compared to explicit models…

机器学习 · 计算机科学 2018-01-08 Aditya Grover , Manik Dhar , Stefano Ermon