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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.

169,341 papers · 148 categories

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6.3%12.5%18.8%25.0% · Mar 199319922001200920182026
48 results for shallow feed-forward nets

Deep convolutional nets are essential for accurate learning on CIFAR-10.

problem Training shallow models to mimic deep convolutional nets on CIFAR-10.
method Used distillation to train shallow feed-forward nets on CIFAR-10, demonstrating the necessity of multiple convolutional layers.
result Accurate models on CIFAR-10 require multiple convolutional layers, even when trained with distillation.

Deep nets improve function approximation and learning in high dimensions.

problem Designing neural networks for rotation-invariant function approximation.
method Developed deep neural networks with multiple hidden layers for radial function approximation.
result Deep nets achieve near-optimal function approximation and learning rates not possible by shallow nets.

Deeper neural networks can better approximate certain natural functions than shallower ones.

problem Approximating natural functions with neural networks.
method Depth-based separation results for feed-forward neural networks.
result Deeper networks can better approximate certain types of functions than shallower ones.

Paper tackles invariance of demodulation in shallow water acoustic communications.

problem Frequency-selective signal distortion (Doppler effect) in shallow water environments.
method Developed ML-based demodulation methods using DBN-NN and DBN-CNN.
result Demonstrated invariance of the proposed method to Doppler effect with 2dB error margin.

The study examines how shallow neural nets converge to training samples or manifold points during diffusion.

problem Understanding when and how shallow neural nets converge to training samples or manifold points during diffusion.
method Analysis of shallow ReLU neural network denoisers trained with minimal 2\ell^2 norm, comparing score flow and diffusion flow.
result Probability flow converges to training points, sums of training points, or manifold points, depending on the diffusion time scheduler.

Proposes a learning rate method for shallow nets based on gradient Lipschitz constant.

problem Finding optimal learning rates for shallow neural networks.
method Associates learning rate with gradient Lipschitz constant and proposes a search algorithm.
result The proposed method significantly outperforms existing tuning methods.

Physics-informed neural networks solve physics problems using neural nets.

problem Discovering nonlinear PDEs from data.
method Two classes of algorithms: continuous time and discrete time models.
result Demonstrated effectiveness on various physics problems.

Shallow neural nets classify objects perfectly if their distribution is linearly separable.

problem Designing efficient neural networks for classification.
method Constructed shallow sigmoid-type neural networks.
result Achieves 100% accuracy for datasets following a linear separability condition.

Paper identifies neural network weights from few samples using differentiation and tensor products.

problem Identifying weights of shallow neural networks from limited data.
method Uses second-order differentiation and tensor product decomposition to identify weights from a small number of samples.
result Proves successful identification of weight vectors close to orthonormal and constructsively reduces generality.

Minimal width din+1d_{in}+1 allows ReLU nets to approximate any continuous function of dind_{in} variables.

problem Approximating continuous functions using ReLU nets with minimal width.
method Analyzing the expressive power of depth in neural nets with ReLU activations.
result Minimal width din+1d_{in}+1 is necessary and sufficient for ReLU nets to approximate any continuous function of dind_{in} variables.

New method uses MMAF-guided learning for spatio-temporal probabilistic forecasts.

problem Probabilistic forecasting of spatio-temporal data with causal structure.
method Generalized Bayesian methodology, MMAF-guided learning, ensemble of stochastic feed-forward neural networks.
result Forecast performance comparable to, and sometimes better than, deep learning architectures.

Paper uses neural networks to analyze oil price impact on Iranian stock and industry indices.

problem Impact of oil price volatility on Tehran stock and industry indices.
method Feed-forward neural networks analysis of two periods: sanctions and post-sanctions.
result Neural networks predict stock and industry indices well, showing significant oil price volatility impact.

This work explores the relation between depth and expressivity in neural networks.

problem Understanding the power of depth in neural networks and its relation to gradient-based optimization.
method Depth separation argument for distributions with fractal structure, proving that deep networks can express fine details efficiently but shallow ones cannot.
result The success of learning deep networks depends on whether the distribution can be well approximated by shallower networks.

New stability bounds for GD in overparameterised shallow nets without NTK assumptions.

problem Generalisation and excess risk bounds for shallow neural networks.
method Oracle inequalities and stability analysis of GD without kernelisation.
result Oracle type bounds reveal GD's generalisation is controlled by an interpolating network with shortest GD path.

GD-trained shallow ReLU nets learn Lipschitz functions with noise.

problem Learning Lipschitz functions with additive noise in overparameterized neural networks.
method Gradient Descent (GD) with early stopping, focusing on the Neural Tangent Kernel (NTK).
result Early-stopped GD achieves minimax optimal rates for learning Lipschitz functions.

GD with early stopping trains shallow neural nets for nonparametric regression robustly.

problem Learning Lipschitz regression functions with noisy labels.
method Overparameterized shallow neural networks trained by GD with early stopping.
result Optimal rates of convergence for nonparametric regression.

RDL-Net improves speech enhancement with fewer parameters and better performance.

problem Improving speech enhancement with fewer parameters and better performance.
method Proposes RDL-Net, a CNN combining residual and dense aggregations without over-allocating parameters.
result RDL-Net achieves higher speech enhancement performance with fewer parameters and lower computational requirements.

A method to simplify deep neural networks for specific tasks.

problem Reducing deep neural networks to a smaller size while maintaining functionality.
method Advanced Supervised Principal Component Analysis-based shallowing algorithm.
result The method can reduce network depth without significant performance loss.

Sample variance decay is shown in deep ReLU networks, impacting training dynamics.

problem Sample variance decay in deep ReLU networks during training.
method Decomposed total variance into sample variance and network-averaged sum of sample mean and variance.
result Sample variance decays in later layers of deep ReLU networks, impacting training dynamics.

Deep Bayesian neural nets can use simpler weight approximations without sacrificing performance.

problem The need for complex weight posterior approximations in deep Bayesian neural networks.
method Theoretical and empirical analysis of mean-field variational inference in deep networks.
result Mean-field variational weight posteriors in deep networks can induce similar function-space distributions as complex approximations in shallower networks.

A method to reduce latency in DNN-based decision making by gating computations.

problem Resource constraints in test-time deployment of deep neural networks.
method Adaptive gating function that recognizes states for shallow policy sufficiency.
result Up to 5X speed-up in average latency with minimal performance loss.

Gradient descent converges to global optima in shallow overparameterized networks.

problem Understanding the level of overparameterization required for gradient descent to converge to a global optimum in shallow neural networks.
method Stochastic gradient descent starting from random initialization, focusing on shallow neural nets and smooth activations.
result Gradient descent converges geometrically to a nearby global optima as soon as the square-root of the number of parameters exceeds the size of the training data.

DS2CF-Net learns hierarchical representations with deep coupled factorization and enriched prior.

problem Learning deep hierarchical representations from data.
method Dual-constrained Deep Semi-Supervised Coupled Factorization Network (DS2CF-Net) with enriched prior.
result DS2CF-Net achieves state-of-the-art performance in representation learning and clustering.

Space2Vec learns multi-scale spatial representations from grid cell insights.

problem Encoding spatial features with varying scales from GIS data.
method Proposes Space2Vec, a multi-scale representation learning model using grid cell insights.
result Space2Vec outperforms baselines in predicting POI types and image classification with geo-locations.

A hybrid model combines physics and machine learning to predict unknown processes in numerical models.

problem Unknown or poorly represented processes in numerical models of the Earth System.
method Combining a physical model with a neural-net trained on observations.
result The hybrid model accurately predicts unknown processes with high correlation (close to 1).

Neural Additive Models combine neural nets with interpretable models for high stakes tasks.

problem Inability to understand how neural networks make decisions.
method Combines neural nets with generalized additive models to create Neural Additive Models (NAMs).
result NAMs are more accurate than intelligible models and as accurate as state-of-the-art generalized additive models.

A neural network, IHT-Net, improves DOA estimation with sparse arrays.

problem Single-snapshot DOA estimation with sparse arrays in dynamic settings.
method IHT-inspired neural network with recurrent neural network and autoencoders.
result IHT-Net achieves faster convergence and higher accuracy in DOA estimation.