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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,291 papers · 148 categories

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4386128171 · Jun 202019922001200920182026
48 results for dropout noise

Paper finds dropout noise approximation invalid for logistic regression and neural networks.

problem Invalidity of dropout noise approximation for logistic regression and neural networks.
method Derived equivalence between dropout noise injection and L2L_2 regularisation using divergent Taylor expansion.
result Approximation approach is invalid for robust constraints and general neural network topologies.

Dropout is typically interpreted as bagging a large number of models sharing parameters. We show that using dropout in a network can also be interpreted as a kind of data augmentation in the input space without domain knowledge. We present an approach to projecting the dropout noise within a network back into the input…

2015-06-29abs ↗pdf ↗

Proposes a new noise injection method for neural networks that improves accuracy and representation clarity.

problem Improving neural network performance and representation clarity.
method Adaptive Structured Noise Injection (ASNI) for shallow and deep neural networks.
result Boosts the accuracy of neural networks and disentangles hidden layer representations.

Dropout is explained as a structured shrinkage prior in neural networks.

problem Understanding the effectiveness of dropout in preventing overfitting.
method Proposes a novel framework to explain dropout as a structured shrinkage prior, considering continuous distributions and Bernoulli noise.
result Dropout's Monte Carlo training objective approximates marginal MAP estimation.

Differentially private dropout technique preserves privacy in neural network training.

problem Preserving privacy in large datasets used for neural network training.
method Introduces a Bayesian dropout technique that adds intrinsic noise for regularization and differential privacy.
result Demonstrates that the iterative nature of neural network training can be handled with a relaxed differential privacy concept.

New Bayesian model injects noise to improve neural network sparsity and acceleration.

problem Improving neural network sparsity and acceleration.
method Proposes a new Bayesian model that injects noise to neurons outputs while keeping weights unregularized, using log-normal multiplicative noise.
result Provides significant acceleration on deep neural architectures.

A new loss function using noisy activations improves deep learning performance.

problem Improving deep learning performance through optimal representation learning.
method Regularization with multiplicative noise in activations, Information Dropout.
result Information Dropout achieves comparable or better generalization performance than binary dropout.

Dropout and other feature noising schemes control overfitting by artificially corrupting the training data. For generalized linear models, dropout performs a form of adaptive regularization. Using this viewpoint, we show that the dropout regularizer is first-order equivalent to an L2 regularizer applied after scaling t…

2013-07-04abs ↗pdf ↗

We investigate a local reparameterizaton technique for greatly reducing the variance of stochastic gradients for variational Bayesian inference (SGVB) of a posterior over model parameters, while retaining parallelizability. This local reparameterization translates uncertainty about global parameters into local noise th…

2015-06-08abs ↗pdf ↗

Critical initialisation strategies are identified for noisy ReLU networks.

problem Understanding signal propagation in noisy rectifier neural networks.
method Developed a new framework for signal propagation in stochastic regularized neural networks, incorporating various noise distributions.
result Critical initialisation strategies for multiplicative noise (e.g. dropout) are identified, but not for additive noise.

Continuum Dropout improves neural differential equations by preventing overfitting.

problem Overfitting in Neural Differential Equations (NDEs).
method Introduces Continuum Dropout, a regularization technique based on alternating renewal processes.
result Continuum Dropout outperforms existing methods in various tasks, improving generalization and uncertainty quantification.

Enhances uncertainty estimation in medical image segmentation.

problem Frequency-related noise in medical imaging leads to biased uncertainty estimates.
method Extends MC-Dropout to the frequency domain for better uncertainty estimation.
result MC-Frequency Dropout improves calibration and uncertainty in semantic segmentation.

This research explores using Alpha-Divergences in variational dropout for better inference.

problem Improving variational inference methods using alternative divergences.
method Extending the Stochastic Gradient Variational Bayes (SGVB) framework with Alpha-Divergences.
result The αα-divergence with αightarrow1α ightarrow 1 yields the lowest training error and optimizes the ELBO.

Two methods use DNN-HMM for global SNR estimation of speech signals.

problem Estimating global SNR of speech signals in various noise conditions.
method Dropout approximation for uncertainty estimation and noise-specific regressors.
result Improved SNR estimation accuracy compared to existing methods.

Rate-In dynamically adjusts dropout rates during inference to improve uncertainty estimation in neural networks.

problem Static dropout rates lead to suboptimal uncertainty estimates in neural networks.
method Rate-In dynamically adjusts dropout rates using information-theoretic principles.
result Rate-In improves calibration and sharpens uncertainty estimates compared to fixed or heuristic dropout rates.

We formalize the notion of a pseudo-ensemble, a (possibly infinite) collection of child models spawned from a parent model by perturbing it according to some noise process. E.g., dropout (Hinton et. al, 2012) in a deep neural network trains a pseudo-ensemble of child subnetworks generated by randomly masking nodes in t…

2014-12-16abs ↗pdf ↗

Dropout improves matrix factorization by controlling factor size.

problem Understanding regularization properties of dropout for matrix factorization.
method Theoretical analysis of dropout's equivalence to a deterministic model with adaptive dropout rates.
result Dropout's regularization effect is limited by the fixed dropout rate, suggesting adaptive rates.

Deep networks can memorize noise data but prioritize simple patterns.

problem Understanding the role of memorization in deep learning.
method Examination of deep learning capacity, generalization, and adversarial robustness; experiments with gradient-based optimization and dropout.
result Deep networks prioritize simple patterns over complex ones when memorizing noise data.

Neuron-specific dropout reduces overfitting and data needs for neural networks.

problem Overfitting and insufficient training data for deep neural networks.
method Compares training and validation passes of a layer, drops targeted neurons based on feature analysis.
result Achieves similar or better testing accuracy with less data, reducing overfitting.

New research shows Gaussian dropout in neural networks is not a proper Bayesian method.

problem Gaussian dropout's Bayesian interpretation is flawed and leads to improper posteriors.
method Analyzed the log-uniform prior and correlated weight noise approximation in Gaussian dropout.
result Gaussian dropout does not provide proper Bayesian inference and can lead to overfitting.

Regularization is essential when training large neural networks. As deep neural networks can be mathematically interpreted as universal function approximators, they are effective at memorizing sampling noise in the training data. This results in poor generalization to unseen data. Therefore, it is no surprise that a ne…

2014-12-20abs ↗pdf ↗

Dropout is shown to be a simplified version of SDR, which improves deep learning performance.

problem Overfitting and misspecification in deep learning models.
method SDR redefines weights as random variables, updating them based on prediction error and local history.
result SDR outperforms Dropout on standard benchmarks, achieving similar accuracy in fewer epochs.

NADPEx uses dropout to enable temporally consistent exploration in reinforcement learning.

problem Achieving temporally consistent exploration in reinforcement learning agents.
method Integrates dropout into reinforcement learning policies to ensure temporal consistency.
result NADPEx outperforms naive exploration and parameter noise in tasks with sparse rewards.

Whiteout injects adaptive Gaussian noise to prevent overfitting in deep neural networks.

problem Preventing overfitting in deep neural networks.
method Introducing a family of noise injection regularization techniques (NIRT) through Gaussian noise.
result Whiteout stabilizes neural network training and converges to ideal loss function.

Tikhonov regularization improves LSTM network performance without dropout issues.

problem Improving LSTM network performance without dropout-induced memory loss.
method Derives a Tikhonov regularizer for LSTM networks, considering interactions between weights.
result Proposes a regularizer with three parameters for LSTM networks, maintaining stability during training.