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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 simple training

Two regularization methods improve deep neural network performance on noisy data.

problem Improving deep neural network performance on noisy labeled data.
method Two simple regularization methods: distance regularization and auxiliary variable.
result Gradient descent with either method achieves generalization guarantee on clean data despite noisy labels.

New implicit regularization drives deep networks towards simple models.

problem Training deep neural networks with noise.
method Stochastic gradient descent with perturbed labels, analyzing dynamics near zero-error parameters.
result The training dynamics are governed by an implicit regularization term, leading to simpler models.

A new method for effective VAE training using calibrated decoders.

problem Training VAEs requires hyperparameter tuning, leading to inefficiency.
method Calibrated decoders that learn uncertainty and automatically determine information retention.
result Calibrated decoders can simplify VAE training without heuristic modifications.

SMT trains generative models by estimating mixture scores, outperforming existing methods.

problem Training one-step generative models efficiently and effectively.
method Score-of-Mixture Training (SMT) estimates the score of mixture distributions between real and fake samples.
result SMT/SMD outperform existing methods on CIFAR-10 and ImageNet 64x64 datasets.

New algorithm trains neural nets on simple skills to learn complex tasks faster.

problem Learning complex tasks through simple imitation.
method Train neural networks on simple, easy-to-learn skills to accelerate learning of complex, hard-to-learn tasks.
result Consistently outperforms state-of-the-art baseline in training speed and performance.

ABNN converts pre-trained DNNs into BNNs for reliable uncertainty quantification.

problem Uncertainty quantification in deep neural networks (DNNs) is challenging and critical for real-world applications.
method Adaptable Bayesian Neural Network (ABNN) that transforms pre-trained DNNs into BNNs with minimal overhead.
result ABNN achieves state-of-the-art performance in image classification and semantic segmentation tasks.

The paper analyzes the dynamics of a simple neural network using a mean-field approach.

problem Understanding the training dynamics of neural networks, especially in classification tasks.
method Developed an analytic theory using a mean-field limit for a simple neural network.
result Explicitly solved the dynamics of a linearly separable dataset with a linear hinge loss.

A simple method for learning activation functions in neural networks.

problem Determining the best activation function for neural networks is challenging.
method Adding local subnetworks with a small amount of neurons to the neural network.
result The proposed method leads to better results compared to using a pre-defined activation function.

Training large-scale image recognition models is computationally expensive. This raises the question of whether there might be simple ways to improve the test performance of an already trained model without having to re-train or fine-tune it with new data. Here, we show that, surprisingly, this is indeed possible. The …

2018-05-21abs ↗pdf ↗

The paper proposes a new algorithm to select subsets of training data for better accuracy and explainability.

problem Tackles the challenge of balancing accuracy and explainability in pattern recognition.
method Identifies multiple subsets with simple local patterns by clustering similar instances.
result The sub-setting algorithm outperformed traditional decision trees by 15% on the international stroke dataset.

Adversarial samples are perturbed inputs crafted to mislead the machine learning systems. A training mechanism, called adversarial training, which presents adversarial samples along with clean samples has been introduced to learn robust models. In order to scale adversarial training for large datasets, these perturbati…

2018-08-06abs ↗pdf ↗

We learn recurrent neural network optimizers trained on simple synthetic functions by gradient descent. We show that these learned optimizers exhibit a remarkable degree of transfer in that they can be used to efficiently optimize a broad range of derivative-free black-box functions, including Gaussian process bandits,…

2016-11-11abs ↗pdf ↗

Without access to large compute clusters, building random forests on large datasets is still a challenging problem. This is, in particular, the case if fully-grown trees are desired. We propose a simple yet effective framework that allows to efficiently construct ensembles of huge trees for hundreds of millions or even…

2018-02-18abs ↗pdf ↗

Large deep neural networks are powerful, but exhibit undesirable behaviors such as memorization and sensitivity to adversarial examples. In this work, we propose mixup, a simple learning principle to alleviate these issues. In essence, mixup trains a neural network on convex combinations of pairs of examples and their …

2017-10-25abs ↗pdf ↗

IBP-R improves verified adversarial robustness with simple, effective interval bound propagation.

problem Improving verifiability of adversarially trained networks.
method Coupling adversarial attacks with interval bound propagation for minimized verification gap.
result State-of-the-art verified robustness-accuracy trade-offs for small perturbations on CIFAR-10.

AFR simplifies reducing reliance on spurious features, improving model performance.

problem Reducing reliance on spurious features for out-of-distribution generalization.
method Automatic Feature Reweighting (AFR) updates the model with a weighted loss.
result AFR improves model performance on benchmarks with minimal compute.

Improved WBP decoding with simple scaling and SNR adaptation.

problem Efficiently decoding weighted Tanner graphs with reduced complexity.
method Simple-scaling models with machine learning for edge weights, and parameter adapter networks.
result Simple scaling with few parameters can achieve near-maximum-likelihood performance.

This paper analyzes training and generalization of simple 2-layer neural nets.

problem Why overparameterized neural nets generalize well despite fitting any data.
method Tighter characterization of training speed, data-dependent complexity measure, and tracking training and generalization dynamics via a related kernel.
result Generalization bound independent of network size, with completely independent sample complexity.

Neural networks and linear systems linked, revealing training loss and kernel limitations.

problem Exploring the training loss and limitations of neural networks and their kernels.
method Drawing connections between neural networks and under-determined linear systems, providing lower bounds, and analyzing gradient descent.
result Zero training loss achievable for neural networks under certain conditions, but not for ReLU kernels.

A simple method flags images as out-of-distribution based on their distance to nearest neighbors.

problem Detecting images not aligned with a trained model's in-distribution data.
method Flag images as OOD if their average distance to K nearest neighbors is large in the classifier's representation space.
result Simple methods can outperform more complex ones when considering learned representations.

Proposes a simple framework to balance task difficulty in multi-task learning.

problem Varying difficulty levels among different tasks in multi-task learning.
method Introduces a Balanced Multi-Task Learning (BMTL) framework that transforms training losses to balance task difficulty.
result Empirical studies show state-of-the-art performance of the proposed BMTL framework.

Neural nets learn simple distributions first, then more complex ones.

problem Understanding how neural networks generalize from simple to complex functions.
method Stochastic gradient descent training, synthetic data, CIFAR10, ImageNet pre-training.
result Neural networks initially use lower-order statistics, then higher-order ones.

Last layer retraining improves robustness to spurious correlations without high computational costs.

problem Neural networks can rely on spurious features like backgrounds for predictions.
method Simple last layer retraining on large models.
result Last layer retraining matches or outperforms state-of-the-art approaches on spurious correlation benchmarks.

Simplified image clustering achieves competitive results without text-based embeddings.

problem Complexity and resource requirements of state-of-the-art clustering methods.
method SCP: trains a small cluster head using pre-trained vision model features and positive data pairs.
result SCP achieves highly competitive performance on various benchmark datasets.