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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.

169,051 papers · 148 categories

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48 results for deep neural network (DNN)

Improves deep neural network training and accuracy with adaptive basis approach.

problem Gap between theoretical and practical performance of deep neural networks.
method Adaptive basis viewpoint, novel initializations, hybrid optimizer.
result Dramatic increases in accuracy and convergence rate for various DNN applications.

We present a novel deep Recurrent Neural Network (RNN) model for acoustic modelling in Automatic Speech Recognition (ASR). We term our contribution as a TC-DNN-BLSTM-DNN model, the model combines a Deep Neural Network (DNN) with Time Convolution (TC), followed by a Bidirectional Long Short-Term Memory (BLSTM), and a fi…

2015-04-07abs ↗pdf ↗

Deep neural networks often fit low-frequency functions, contrary to conventional numerical schemes.

problem Understanding the implicit bias of deep neural networks in fitting training data.
method Fourier analysis perspective applied to DNNs training process.
result Deep neural networks tend to fit training data by low-frequency functions, contrary to conventional numerical schemes.

The paper develops generalization bounds for deep compound Gaussian neural networks.

problem Developing theoretical guarantees for the performance of deep neural networks.
method Novel generalization error bounds using a compound Gaussian prior and Dudley's integral.
result Theoretical bounds show generalization error scales O(nln(n))\mathcal{O}(n\sqrt{\ln(n)}) in signal dimension and O((NetworkSize)3/2)\mathcal{O}((Network Size)^{3/2}) in network size.

Introduces a probabilistic view of deep learning for better understanding and explaining neural networks.

problem Explaining the behavior and properties of deep neural networks.
method Introduces a probabilistic representation of deep learning, linking neurons, hidden layers, and the whole architecture to Gibbs distributions and Bayesian neural networks.
result Demonstrates the hierarchy and generalization properties of deep learning through a probabilistic lens.

New theory predicts deep neural networks can operate in an extended critical regime without fine-tuning.

problem Understanding the dynamics and computational principles of deep neural networks.
method Combining theories of heavy-tailed random matrices and non-equilibrium statistical physics.
result Deep neural networks can operate in an extended critical regime without fine-tuning parameters.

DRE combines DNN with random feature regression for efficient neural network design.

problem Designing and training deep neural networks (DNN) efficiently and effectively.
method DRE architecture with two-layer neural networks, randomly drawn input and output weights trained with linear ridge regression.
result DRE outperforms state-of-the-art DNN in many data sets with lower computational cost.

Paper analyzes deep neural networks with dependent data, establishing convergence rates and error bounds.

problem Statistical analysis of deep neural networks under dependent data.
method Establishes rates of convergence and L2\mathcal{L}^{2}-error bounds for nonparametric sieve estimators of DNNs.
result Non-asymptotic probability bounds on L2\mathcal{L}^{2}-errors for DNN estimators under stationary β\beta-mixing data.

Embedding principle explains loss landscape of deep neural networks.

problem Understanding the structure of loss landscapes in deep neural networks.
method Proposed an embedding principle that critical points of narrower DNNs can be embedded to critical points of wider DNNs.
result Wide DNNs are often attracted by highly-degenerate critical points embedded from narrower DNNs.

Study shows DNNs often extract redundant features, influenced by network size and activation function.

problem Redundancy in deep neural network features.
method Hierarchical clustering of features based on cosine distances, varying network sizes and activation functions.
result Network size and activation function are key factors in DNN redundancy.

Proposes a Bayesian approach to explain, justify, and quantify uncertainty in DNNs.

problem Lack of transparency and confidence in DNNs for critical applications.
method Bayesian approach to extract explanations, justifications, and uncertainty estimates from black box DNNs.
result Improves interpretability and reliability of DNNs, validated on CIFAR-10.

Paper proposes a method to predict deep neural network confidences with guarantees.

problem Quantifying uncertainty in deep neural networks for safety-critical applications.
method Uses Clopper-Pearson confidence intervals and histogram binning for calibrated prediction.
result Demonstrates the effectiveness of predicted confidences in improving DNN performance and safety.

This paper examines how different data normalization techniques affect DNN performance in time series forecasting.

problem Improving DNN performance for time series forecasting with nonlinear, dynamic data.
method Different data normalization techniques were applied to time series data before feeding it into a DRNN model for forecasting.
result Data normalization significantly impacts the DNN's performance in time series forecasting.

Paper proposes a new black-box attack method for deep neural networks.

problem Understanding and defending against adversarial attacks on deep neural networks.
method The algorithm finds a probability distribution over a region around the input, making a sample likely an adversarial example.
result The method outperforms state-of-the-art black-box or white-box attack methods for most test cases.

Deep networks can be approximated as Gaussian processes, linking training methods and kernel learning.

problem Understanding the relationship between deep neural networks and Gaussian processes.
method Showed that certain Gaussian posterior approximations for Bayesian DNNs are equivalent to GP posteriors, linking solutions and iterations of a deep-learning algorithm to GP inference.
result Obtained a GP kernel and nonlinear feature map while training a DNN, with the kernel being the neural tangent kernel.

A new DNN structure reduces complexity for wireless tasks.

problem Reducing complexity in training deep neural networks for wireless tasks.
method Proposes a DNN with special structure using permutation invariant a priori information.
result The proposed DNN structure reduces training complexity and model parameters.

This work accelerates uncertainty propagation in DNNs using active subspace.

problem Challenges in propagating uncertainty in DNN predictions from real-world data.
method Gradient-based active subspace method and response surface technique.
result Efficient uncertainty propagation in DNN predictions at low computational cost.

Proposes a method to learn sparse deep neural networks with theoretical guarantees.

problem Over-parameterized deep neural networks cause training, prediction, and interpretation difficulties.
method Frequentist-like method for sparse DNNs under Bayesian framework.
result Consistent sparse DNNs with at most O(n/log(n))O(n/\log(n)) connections.

This work analyzes how deep neural networks' expressiveness increases with depth and width.

problem Understanding the expressiveness of deep neural networks (DNNs) based on their Lipschitz constants.
method Leveraging random matrix theory, the study characterizes the expressiveness of DNNs by their Lipschitz constant, showing exponential and polynomial increases with depth and width, respectively.
result The expressiveness of DNNs increases exponentially with depth and polynomially with width, consistent with function approximation benefits.

DNNs initially capture low-frequency components before high-frequency ones, a phenomenon called F-Principle.

problem Understanding why DNNs generalize well despite overfitting.
method Empirical study on real and synthetic datasets, focusing on frequency components captured by DNNs.
result DNNs capture dominant low-frequency components first, then high-frequency ones, a phenomenon called F-Principle.

POLICE enforces linear constraints on deep neural networks efficiently.

problem Enforcing constraints on deep neural networks without affecting optimization.
method Provably optimal affine constraint enforcement method that minimally modifies DNNs.
result POLICE ensures DNNs fulfill affine constraints during training and testing.

Gradient descent achieves good generalization for over-parameterized deep ReLU networks.

problem Understanding good generalization in over-parameterized deep neural networks.
method Algorithm-dependent generalization error bound for deep ReLU networks using gradient descent.
result Gradient descent with proper initialization can achieve arbitrarily small generalization error for over-parameterized DNNs.

PAC-Bayesian bounds show fully connected DNNs with Gaussian priors match minimax rates.

problem Theoretical limits of fully connected deep neural networks with Gaussian priors.
method PAC-Bayesian bounds for fully connected Bayesian DNNs with Gaussian priors.
result PAC-Bayesian bounds match minimax-optimal rates in Besov space for nonparametric regression and binary classification.

Deep neural networks outperform other methods in estimating non-smooth functions with singularities.

problem Estimating functions with singularities on hypersurfaces.
method Developed a minimax rate analysis for DNNs, proving their almost optimal convergence rate.
result DNNs outperform other estimators in estimating non-smooth functions with singularities.

Study uses deep neural networks for causal inference tasks, especially in high-dimensional settings.

problem Challenges in direct estimation for complex causal inference tasks.
method Sequential multi-stage learning with doubly robust deep neural networks.
result Theoretical guarantees for DNNs' effectiveness in high-dimensional causal inference.

Study shows DNNs can recover functions with fewer samples than model parameters at overparameterization.

problem Determining reliable function recovery in overparameterized deep neural networks.
method Introducing 'local linear recovery' (LLR) and proving upper bounds on sample sizes for recovery.
result Upper bounds on optimistic sample sizes for function recovery in overparameterized DNNs are achieved.

Hierarchical Block Sparse Neural Networks improve both accuracy and runtime efficiency of sparse DNNs.

problem Inefficiency of sparse DNNs on regular parallel hardware due to irregular computation.
method Introducing HBsNN, a structured sparse neural network that balances accuracy and runtime efficiency.
result HBsNN achieves better runtime performance and accuracy than unstructured and highly structured sparse models.

Study examines noise sensitivity of DNNs for binary classification.

problem Understanding non-robustness of DNN classifiers under noise.
method Defined and extended noise sensitivity and stability concepts for Boolean functions, applied to DNN models.
result Sorted out the relation between definitions and properties of DNN architectures under noise.

Deep neural networks can reduce high-dimensional data to lower dimensions.

problem Understanding the performance of deep neural networks in high-dimensional data.
method Applying deep neural networks to high-dimensional data and analyzing the least squares regression estimates.
result The least squares regression estimates using deep neural networks achieve dimensionality reduction when the regression function has locally low dimensionality, circumventing the curse of dimensionality.

Gaudy images help train deep neural networks with less data.

problem Training deep neural networks with limited real data from visual cortex neurons.
method Used high-contrast binarized natural images (gaudy images) to train DNNs.
result Reduced training data needed for accurate DNN predictions of visual cortex neuron responses.

This paper investigates the impact of normalization on deep neural networks for click-through rate prediction.

problem The effect of normalization on deep neural network models for CTR estimation.
method Systematic study of various normalization approaches applied to feature embedding and MLP part of DNN models.
result Correct normalization significantly enhances model performance, as demonstrated by extensive experiments on real-world datasets.