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Generative adversarial networks are a novel method for statistical inference that have achieved much empirical success; however, the factors contributing to this success remain ill-understood. In this work, we attempt to analyze generative…

机器学习 · 计算机科学 2018-09-13 Shuang Liu , Kamalika Chaudhuri

We focus on generative autoencoders, such as variational or adversarial autoencoders, which jointly learn a generative model alongside an inference model. Generative autoencoders are those which are trained to softly enforce a prior on the…

机器学习 · 计算机科学 2017-01-13 Antonia Creswell , Kai Arulkumaran , Anil Anthony Bharath

We propose a Bayesian approach to learn discriminative dictionaries for sparse representation of data. The proposed approach infers probability distributions over the atoms of a discriminative dictionary using a Beta Process. It also…

计算机视觉与模式识别 · 计算机科学 2015-03-30 Naveed Akhtar , Faisal Shafait , Ajmal Mian

Assessing generative models is not an easy task. Generative models should synthesize graphs which are not replicates of real networks but show topological features similar to real graphs. We introduce an approach for assessing graph…

机器学习 · 计算机科学 2018-09-06 Vahid Mostofi , Sadegh Aliakbary

Generative state estimators based on probabilistic filters and smoothers are one of the most popular classes of state estimators for robots and autonomous vehicles. However, generative models have limited capacity to handle rich sensory…

机器学习 · 计算机科学 2017-10-03 Tuomas Haarnoja , Anurag Ajay , Sergey Levine , Pieter Abbeel

Ensemble weather forecasts based on multiple runs of numerical weather prediction models typically show systematic errors and require post-processing to obtain reliable forecasts. Accurately modeling multivariate dependencies is crucial in…

大气与海洋物理 · 物理学 2024-02-02 Jieyu Chen , Tim Janke , Florian Steinke , Sebastian Lerch

The tremendous success of generative models in recent years raises the question whether they can also be used to perform classification. Generative models have been used as adversarially robust classifiers on simple datasets such as MNIST,…

机器学习 · 统计学 2021-12-14 Roland S. Zimmermann , Lukas Schott , Yang Song , Benjamin A. Dunn , David A. Klindt

Consider a multinomial regression model where the response, which indicates a unit's membership in one of several possible unordered classes, is associated with a set of predictor variables. Such models typically involve a matrix of…

应用统计 · 统计学 2009-01-28 Paul Gustafson , Geneviève Lefebvre

A new approach to the construction of general persistent polyhierarchical classifications is proposed. It is based on implicit description of category polyhierarchy by a generating polyhierarchy of classification criteria. Similarly to…

人工智能 · 计算机科学 2007-05-23 Pavel Babikov , Oleg Gontcharov , Maria Babikova

Which neural networks are similar is a fundamental question for both machine learning and neuroscience. Here, it is proposed to base comparisons on the predictive distributions of linear readouts from intermediate representations. In…

机器学习 · 计算机科学 2025-05-27 Heiko H. Schütt

We recapitulate the Bayesian formulation of neural network based classifiers and show that, while sampling from the posterior does indeed lead to better generalisation than is obtained by standard optimisation of the cost function, even…

机器学习 · 统计学 2019-04-09 Robert J. N. Baldock , Nicola Marzari

In variational inference, the benefits of Bayesian models rely on accurately capturing the true posterior distribution. We propose using neural samplers that specify implicit distributions, which are well-suited for approximating complex…

机器学习 · 计算机科学 2023-11-10 Anshuk Uppal , Kristoffer Stensbo-Smidt , Wouter Boomsma , Jes Frellsen

We consider a class of colored graphical Gaussian models obtained by placing symmetry constraints on the precision matrix in a Bayesian framework. The prior distribution on the precision matrix is the colored $G$-Wishart prior which is the…

统计方法学 · 统计学 2020-04-03 Qiong Li , Xin Gao , Helene Massam

We consider the problem of learning deep generative models from data. We formulate a method that generates an independent sample via a single feedforward pass through a multilayer perceptron, as in the recently proposed generative…

机器学习 · 计算机科学 2015-02-11 Yujia Li , Kevin Swersky , Richard Zemel

Training generative models with differential privacy (DP) typically involves injecting noise into gradient updates or adapting the discriminator's training procedure. As a result, such approaches often struggle with hyper-parameter tuning…

机器学习 · 计算机科学 2024-10-29 Kristjan Greenewald , Yuancheng Yu , Hao Wang , Kai Xu

Denoising diffusion probabilistic models (DDPMs) are a recent family of generative models that achieve state-of-the-art results. In order to obtain class-conditional generation, it was suggested to guide the diffusion process by gradients…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Bahjat Kawar , Roy Ganz , Michael Elad

Model selection is crucial to high-dimensional learning and inference for contemporary big data applications in pinpointing the best set of covariates among a sequence of candidate interpretable models. Most existing work assumes implicitly…

统计方法学 · 统计学 2018-03-21 Emre Demirkaya , Yang Feng , Pallavi Basu , Jinchi Lv

Learning, taking into account full distribution of the data, referred to as generative, is not feasible with deep neural networks (DNNs) because they model only the conditional distribution of the outputs given the inputs. Current solutions…

机器学习 · 计算机科学 2017-09-26 Boris Flach , Alexander Shekhovtsov , Ondrej Fikar

In this work, we present a novel neural network to generate high resolution images. We replace the decoder of VAE with a discriminator while using the encoder as it is. The encoder is fed data from a normal distribution while the generator…

图像与视频处理 · 电气工程与系统科学 2021-06-23 Abhinav Sagar

Unsupervised dependency parsing aims to learn a dependency parser from unannotated sentences. Existing work focuses on either learning generative models using the expectation-maximization algorithm and its variants, or learning…

计算与语言 · 计算机科学 2017-09-26 Yong Jiang , Wenjuan Han , Kewei Tu
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