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Positive-Unlabeled (PU) learning is an analog to supervised binary classification for the case when only the positive sample is clean, while the negative sample is contaminated with latent instances of positive class and hence can be…

机器学习 · 计算机科学 2020-06-09 Dmitry Ivanov

Recently, semi-supervised learning methods based on generative adversarial networks (GANs) have received much attention. Among them, two distinct approaches have achieved competitive results on a variety of benchmark datasets. Bad GAN…

机器学习 · 计算机科学 2019-05-20 Wenyuan Li , Zichen Wang , Jiayun Li , Jennifer Polson , William Speier , Corey Arnold

In binary classification, Learning from Positive and Unlabeled data (LePU) is semi-supervised learning but with labeled elements from only one class. Most of the research on LePU relies on some form of independence between the selection…

机器学习 · 计算机科学 2020-03-03 Naji Shajarisales , Peter Spirtes , Kun Zhang

Generative adversarial nets (GANs) have been widely studied during the recent development of deep learning and unsupervised learning. With an adversarial training mechanism, GAN manages to train a generative model to fit the underlying…

信息检索 · 计算机科学 2018-06-12 Weinan Zhang

Generative adversarial networks (GANs) are emerging machine learning models for generating synthesized data similar to real data by jointly training a generator and a discriminator. In many applications, data and computational resources are…

机器学习 · 计算机科学 2021-07-20 Jinke Ren , Chonghe Liu , Guanding Yu , Dongning Guo

Generative Adversarial Networks (GANs) have proven to be a powerful framework for learning to draw samples from complex distributions. However, GANs are also notoriously difficult to train, with mode collapse and oscillations a common…

机器学习 · 统计学 2018-11-28 Kevin J Liang , Chunyuan Li , Guoyin Wang , Lawrence Carin

Generative Adversarial Networks (GANs) produce systematically better quality samples when class label information is provided., i.e. in the conditional GAN setup. This is still observed for the recently proposed Wasserstein GAN formulation…

机器学习 · 统计学 2018-05-18 Guillermo L. Grinblat , Lucas C. Uzal , Pablo M. Granitto

Generative neural samplers are probabilistic models that implement sampling using feedforward neural networks: they take a random input vector and produce a sample from a probability distribution defined by the network weights. These models…

机器学习 · 统计学 2016-06-03 Sebastian Nowozin , Botond Cseke , Ryota Tomioka

We consider the problem of learning a binary classifier from a training set of positive and unlabeled examples, both in the inductive and in the transductive setting. This problem, often referred to as \emph{PU learning}, differs from the…

机器学习 · 统计学 2010-10-06 Fantine Mordelet , Jean-Philippe Vert

Estimation of Distribution Algorithms (EDAs) require flexible probability models that can be efficiently learned and sampled. Generative Adversarial Networks (GAN) are generative neural networks which can be trained to implicitly model the…

神经与进化计算 · 计算机科学 2016-08-09 Malte Probst

Recent improvements in Generative Adversarial Neural Networks (GANs) have shown their ability to generate higher quality samples as well as to learn good representations for transfer learning. Most of the representation learning methods…

音频与语音处理 · 电气工程与系统科学 2020-06-02 Kazi Nazmul Haque , Rajib Rana , John H. L. Hansen , Björn Schuller

Generative Adversarial Networks (GANs) are a powerful framework for deep generative modeling. Posed as a two-player minimax problem, GANs are typically trained end-to-end on real-valued data and can be used to train a generator of…

机器学习 · 统计学 2017-11-15 Anirudh Goyal , Nan Rosemary Ke , Alex Lamb , R Devon Hjelm , Chris Pal , Joelle Pineau , Yoshua Bengio

Generative AI technologies have been deployed in many places, such as (multimodal) large language models and vision generative models. Their remarkable performance should be attributed to massive training data and emergent reasoning…

机器学习 · 计算机科学 2024-07-31 Zheyuan Liu , Guangyao Dou , Zhaoxuan Tan , Yijun Tian , Meng Jiang

Identifying anomalies refers to detecting samples that do not resemble the training data distribution. Many generative models have been used to find anomalies, and among them, generative adversarial network (GAN)-based approaches are…

机器学习 · 计算机科学 2022-01-03 Laya Rafiee Sevyeri , Thomas Fevens

Deep Neural Networks (DNNs) are often criticized for being susceptible to adversarial attacks. Most successful defense strategies adopt adversarial training or random input transformations that typically require retraining or fine-tuning…

计算机视觉与模式识别 · 计算机科学 2021-11-25 Lokender Tiwari , Anish Madan , Saket Anand , Subhashis Banerjee

Generative adversarial networks (GAN) are a powerful subclass of generative models. Despite a very rich research activity leading to numerous interesting GAN algorithms, it is still very hard to assess which algorithm(s) perform better than…

机器学习 · 统计学 2018-10-30 Mario Lucic , Karol Kurach , Marcin Michalski , Sylvain Gelly , Olivier Bousquet

Most existing zero-shot learning methods consider the problem as a visual semantic embedding one. Given the demonstrated capability of Generative Adversarial Networks(GANs) to generate images, we instead leverage GANs to imagine unseen…

计算机视觉与模式识别 · 计算机科学 2018-05-22 Yizhe Zhu , Mohamed Elhoseiny , Bingchen Liu , Xi Peng , Ahmed Elgammal

Self-supervised learning is a popular and powerful method for utilizing large amounts of unlabeled data, for which a wide variety of training objectives have been proposed in the literature. In this study, we perform a Bayesian analysis of…

机器学习 · 计算机科学 2023-02-08 Emanuele Sansone , Robin Manhaeve

Positive-Unlabeled (PU) learning aims to train a binary classifier (positive vs. negative) where only limited positive data and abundant unlabeled data are available. While widely applicable, state-of-the-art PU learning methods…

机器学习 · 计算机科学 2026-02-11 Hengwei Zhao , Zhengzhong Tu , Zhuo Zheng , Wei Wang , Junjue Wang , Rusty Feagin , Wenzhe Jiao

We propose a method for semi-supervised training of structured-output neural networks. Inspired by the framework of Generative Adversarial Networks (GAN), we train a discriminator network to capture the notion of a quality of network…

计算机视觉与模式识别 · 计算机科学 2017-02-09 Mateusz Koziński , Loïc Simon , Frédéric Jurie