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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.

169,181 papers · 148 categories

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48 results for Neural mechanisms

The paper improves neural network robustness against multiple norm types of adversarial attacks.

problem Defending neural networks against adversarial attacks with different norms.
method Combining existing defense mechanisms to train neural networks robust against both \ell_\infty and 2\ell_2 attacks.
result New defense mechanisms offer better protection against both \ell_\infty and 2\ell_2 attacks.

New mechanisms from primate vision improve neural network robustness.

problem Demonstrating robust neural networks to small adversarial perturbations.
method Investigated two biologically plausible mechanisms: non-uniform retina sampling and receptive field diversity.
result Non-uniform retina sampling and receptive field diversity improve adversarial robustness.

Deep neural networks can store and recall data efficiently.

problem Identifying computational mechanisms for memorization and retrieval of data.
method Training overparameterized autoencoders and sequence encoders using standard optimization methods.
result Overparameterized autoencoders and sequence encoders store and recall data efficiently as attractors.

Paper introduces a Gaussian Process for operator learning in computational mechanics.

problem Efficient and accurate solutions for large datasets with reliable uncertainty quantification.
method Gaussian Process (GP) embedded in a neural operator framework with stochastic dual descent (SDD) algorithm.
result Improves GP resolution independence and scalability for high-dimensional and non-linear systems.

Permutation-equivariant neural networks improve auction mechanisms by reducing regret and sample complexity.

problem Designing optimal auction mechanisms that balance revenue and bidders' regret.
method Introduced permutation-equivariant neural networks to auction mechanisms.
result Permutation-equivariant neural networks decrease expected ex-post regret and improve model generalizability.

Paper introduces methods to integrate external knowledge into RNNs using attention mechanisms.

problem Incorporating external knowledge into RNNs for improved performance.
method Proposes three methods: attentional concatenation, feature-based gating, and affine transformation.
result Attentional feature-based gating consistently improves performance across tasks.

Modern neural networks are often augmented with an attention mechanism, which tells the network where to focus within the input. We propose in this paper a new framework for sparse and structured attention, building upon a smoothed max operator. We show that the gradient of this operator defines a mapping from real val…

2017-05-22abs ↗pdf ↗

New mechanism protects neural network weights from privacy attacks during self-supervised learning.

problem Privacy risks during fine-tuning stage of self-supervised learning.
method Proposes a novel differential privacy mechanism using additive logistic noise.
result Reduces membership inference attack accuracy to 50% while maintaining below 5% performance loss.

New neural network improves audio classification accuracy.

problem Challenging audio classification problem in pattern recognition.
method Introduces a Classifier-Attention-Based Convolutional Neural Network (CAB-CNN) with an attention mechanism to reduce classifier complexity.
result Significantly improves audio classification performance, achieving more than 10% improvements.

New approach uses statistical mechanics to explain deep learning generalization.

problem Understanding deep learning's generalization properties.
method Revisiting statistical mechanics in neural networks, introducing control parameters.
result Simple model explains overfitting, discontinuous learning, and sharp transitions.

A neural network-evolutionary framework estimates mechanical RUL efficiently.

problem Estimating the remaining useful life of mechanical systems.
method Multi-layer perceptron and evolutionary algorithm for optimizing data parameters, using strided time windows.
result The framework increases model efficiency and reduces complexity, leading to improved accuracy.

This paper makes complex neural graphs nearly convex through iterative decomposition and scale mechanism.

problem Non-convexity in complex neural architectures limits their performance in convex optimization.
method Decompose neural graph into operators, algorithms, and functions; iteratively propagate along edges; introduce scale mechanism to transform non-convex properties.
result Proves neural graph is nearly convex in each variable when others are fixed, validating the scale mechanism.

Analyzes unsupervised neural networks using statistical mechanics and Monte Carlo simulations.

problem Understanding computational capabilities of unsupervised neural networks.
method Statistical mechanics approach and Monte Carlo simulations.
result Obtained a phase diagram summarizing network performance.

Deep neural network improves NILM with attention mechanism.

problem Energy disaggregation of individual appliance power demands from aggregate meter readings.
method Regression and classification subnetworks with attention mechanism.
result Proposed model outperforms state-of-the-art on REDD and UK-DALE datasets.

DNNs generalize object recognition in novel orientations via neurons tuned to common features.

problem Understanding how DNNs generalize to objects in novel orientations.
method Training DNNs with familiar objects from multiple viewpoints and analyzing neuron responses.
result DNNs disseminate orientation-invariance from familiar objects to recognize objects in novel orientations.

A hybrid neural network improves robustness in estimating vehicle parameters from noisy data.

problem Estimating parameters of a mechanical vehicle model from noisy acceleration data.
method Introduced a convolutional neural network with two objective functions: naive and hybrid.
result The hybrid objective function outperforms the naive one in robustness on noisy input data.

Physics-informed neural networks improve model accuracy and efficiency.

problem Accurate dynamic models for technical systems are hard to achieve.
method Physics-informed neural ordinary differential equations (PINODE) integrating Lagrangian mechanics.
result Hybrid model combines physical insight and data approximation.

This study approximates neural network features for modeling relations and attention mechanisms.

problem Approximating neural network features for modeling relations and attention mechanisms.
method Analyzes inner products of multi-layer perceptrons for universal approximation of symmetric and asymmetric relation functions.
result Universal approximation of relation functions and attention mechanisms using inner products of neural networks.

The study connects deep neural networks with statistical mechanics, revealing natural activation functions.

problem Understanding the activation functions in deep neural networks.
method Statistical Mechanics model of deep neural networks, focusing on encoding, validation, and propagation steps.
result A set of natural activations including Sigmoid, tanh, ReLU, and Swish are identified.

Attention-based CNNs improve band selection in hyperspectral images.

problem Selecting informative bands from hyperspectral images for accurate classification.
method Attention-based convolutional neural networks reusing activations at different depths.
result Deep models with attention mechanisms achieve high-quality classification and identify significant bands.

Deep models learn biases from datasets, hindering understanding of binding mechanisms.

problem Dataset biases prevent deep models from revealing fragment logic of protein-ligand binding.
method Attribution method to identify and exploit dataset biases in neural networks.
result Deep models can be fooled into learning spurious correlations from biased datasets.

A new multi-layer attention mechanism improves speech keyword recognition accuracy.

problem Inaccurate attention weights in LSTM networks for speech keyword recognition.
method Introducing information from layers prior to feature extraction into attention weights calculations.
result The proposed multi-layer attention mechanism leads to more accurate attention weights and improved keyword spotting performance.

Develops a complexity measure for neural networks based on quantum statistical mechanics.

problem Understanding the relationship between neural network structure and generalization ability.
method Introduces Periodic Spectral Ergodicity (PSE) and cascading PSE (cPSE) to quantify neural network complexity.
result Demonstrates the effectiveness of cPSE in quantifying complexity and guiding NAS.

Enhances statistical mechanics solving using VANs with MCMC or importance sampling.

problem Sampling error in solving statistical mechanics using VANs.
method Integrates MCMC or importance sampling to correct sampling error in VANs.
result Asymptotically unbiased estimators for physical quantities are achieved.

APD method decomposes neural network parameters into simple, faithful components.

problem Understanding the internal mechanisms learned by neural networks.
method Attribution-based Parameter Decomposition (APD) method.
result Demonstrated effectiveness in recovering features, separating computations, and identifying representations.

CPA models improve GNNs by preserving node cardinality.

problem Limited understanding of attention-based GNNs' discriminative power.
method Theoretical analysis and CPA models to preserve cardinality information.
result CPA models can improve GNNs' performance in node and graph classification.

We extend Hopfield neural networks using mechanical analogy for better handling of interactions.

problem Improving the stability of spurious states in Hopfield neural networks.
method Relativistic extension via mechanical analogy, focusing on low-storage regime.
result Reduced stability of spurious states due to unlearning contributions.

Convolutional neural network improves MRE image reconstruction.

problem Reconstructing MRE images from displacement data is computationally intensive and costly.
method Proposes a CNN architecture to directly map MRE displacement data into elastograms, introducing a secondary loss for training.
result CNN-generated images compare favorably with nonlinear inversion methods.

EML-CD discovers causal mechanisms from neural networks in a structured way.

problem Extracting causal mechanisms from neural network weights is ill-posed.
method Integrates EML operator into causal structure learning, representing each edge mechanism as a gated EML binary tree.
result Achieves SHD=11.2 +/- 0.4 on real data, matching or outperforming existing methods.