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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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141282423564 · Jun 202019922001200920182026
48 results for localized features

New method learns domain-invariant local feature patterns for unsupervised domain adaptation.

problem Performance degradation due to domain-shift in unsupervised domain adaptation.
method Jointly learns domain-invariant local feature patterns and holistic feature distributions.
result Superior performance on benchmark datasets compared to state-of-the-art methods.

Paper introduces a method to learn optimal local feature aggregation functions.

problem Learning optimal local feature aggregation functions for classification.
method Compose local feature aggregation function with classifier cost function and backpropagate gradient to update parameters.
result Method outperforms state-of-the-art local feature aggregation functions.

Adaptive Siamese network improves local feature descriptor learning efficiency.

problem Estimating the size of neural networks for local feature descriptors.
method Adaptive pruning Siamese architecture based on neuron activation.
result Learned local feature descriptors outperform state-of-the-art methods in patch matching.

FSL-Net detects and localizes feature shifts in large, high-dimensional datasets.

problem Feature shifts between data sources lead to erroneous features in various applications.
method FSL-Net is a neural network trained on multiple datasets to localize feature shifts.
result FSL-Net accurately localizes feature shifts from unseen datasets without re-training.

Paper presents a novel approach for global feature aggregation in Graph Neural Networks.

problem Graphs lack a straightforward way to perform non-local feature aggregation like images and texts.
method Utilizes Latent Fixed Data Structure (LFDS) to aggregate feature vectors from local extraction.
result Proposed methods achieve competitive or better results with linear computational complexity.

3D-CNN learns local geometric features for manufacturability analysis of drilled holes.

problem Capturing distinguishing local features in 3D CAD geometry.
method 3D-CNN with voxel data augmented by surface normals, using 3D gradient-weighted class activation maps.
result Identification of local features critical for manufacturability analysis.

Efficiently extracts local features from whole images using CNNs with pooling layers.

problem Efficiently extracting local features from whole images for various tasks.
method A method to compute patch-based local feature descriptors efficiently in presence of pooling and striding layers for whole images at once, applicable to nearly all existing network architectures.
result Our approach significantly speeds up feature extraction from whole images compared to existing methods.

New method identifies important features and interactions in RF models.

problem Limited theoretical understanding of local feature and interaction importance in RF models.
method Combines global and local analysis to identify frequent feature co-occurrences.
result Proves consistent recovery of true local signal features and interactions.

Study of local optima in neural networks for feature interactions.

problem NNs struggle with local optima in feature interactions for small datasets.
method Proposed a node pruning and feature selection algorithm to improve NN performance.
result NNs have many non-equivalent local optima in XOR-like data with irrelevant variables.

New method extracts localized features from images.

problem Extracting localized features from images.
method Sequential nonnegative matrix underapproximation (NMU) incorporating spatial information.
result New method outperforms state-of-the-art techniques on various image data sets.

GOLFS selects features for clustering by combining global and local information.

problem Feature selection for high-dimensional clustering without labels.
method Combines global and local information via manifold learning and regularized self-representation.
result Improves feature selection and clustering accuracy.

BagNet classifies images using local features, making decisions clearer and more understandable.

problem Understanding how deep neural networks make decisions is difficult.
method BagNet is a variant of ResNet-50 that classifies images based on local features without spatial ordering.
result BagNet achieves high accuracy on ImageNet (87.6% top-5 for 33 x 33 px features).

Develops a method to interpret deep learning models by identifying key features.

problem Revealing the decision-making process of blackbox models from raw data to predictions.
method Adversarial attacks to localize discriminative features with statistical guarantees.
result Locally identified features are both biologically plausible and statistically significant.

Gradient descent learns useful features even in the NTK regime.

problem The ability of neural networks to learn useful features.
method Local convergence analysis of gradient descent with regularization.
result Gradient descent can capture ground-truth directions for feature learning even after the loss threshold is reached.

LOCO-Reg improves CNN accuracy by promoting feature cohesion near filter centers.

problem Current regularization schemes in CNNs violate the principle that weights near the center of a filter are larger than weights on the outside.
method Introduces Locality-Promoting Regularization (LOCO-Reg) to correct this issue.
result LOCO-Reg yields accuracy gains across multiple architectures and datasets.

SVM with local features improves human action recognition.

problem Improving human action recognition in videos.
method Local appearance and motion features extracted using CNNs, concatenated, and used with SVM for classification.
result SVM with local features outperforms previous methods on benchmark datasets.

Paper develops a method to identify feature subspaces contributing to local data complexity.

problem Identifying feature subspaces that contribute to local data complexity.
method Develops an estimator of Local Intrinsic Dimension (LID) along axis projections to identify feature subspaces.
result Preliminary evidence suggests LID decomposition can indicate axis-aligned data subspaces supporting cluster formation.

This paper improves image super-resolution by integrating cross-scale non-local attention.

problem Improving image super-resolution by leveraging long-range and cross-scale feature correlations.
method Proposes a Cross-Scale Non-Local (CS-NL) attention module integrated into a recurrent neural network.
result Significantly improved performance on SISR benchmarks.

Local MDI+ improves feature importance for tree-based models, enhancing interpretability and performance.

problem Lack of instance-specific feature importance for tree-based models.
method Local MDI+ extends MDI+ framework to provide instance-specific feature importances.
result Local MDI+ outperforms existing baselines, improving predictive performance by 10%.

Method learns feature maps from deep CNN layers for weakly supervised chest pathology localization.

problem Localization of chest pathologies in X-ray images is challenging due to varying sizes and appearances.
method Class-aware deep multiscale feature learning using intermediate feature maps from CNN layers.
result Improves localization performance of small pathologies like nodules and masses.

NormLIME improves feature importance explanations for deep neural networks.

problem Improving local feature explanations for deep learning models.
method NormLIME aggregates local models into global and class-specific interpretations.
result NormLIME outperforms other feature importance metrics in human user studies and numerical experiments.

A theory of feature geometry using spectral analysis of weight matrices.

problem Current methods decompose neural network activations into sparse linear features, losing geometric structure.
method Develops a theory by analyzing the spectra of weight-derived matrices, introducing the frame operator.
result Features collapse onto single eigenspaces, organizing into tight frames, and admit discrete classification.

Study models deep learning training dynamics using locally elastic SDEs to reveal feature separability.

problem Understanding how deep learning models separate features from different classes during training.
method Modeling deep learning training using locally elastic SDEs with a drift term reflecting backpropagation impact.
result Local elasticity in SDEs leads to linear separability of features, resulting in vanishing training loss.

FedCONST adapts update magnitudes to enhance feature generalization in FL.

problem Heterogeneous client data in FL leads to overfitting and distorted transferable features.
method FedCONST uses linear convex constraints to stabilize training and preserve generalization.
result FedCONST enhances feature transferability and robustness, achieving state-of-the-art performance.

HKConv learns hyperbolic features by aggregating kernel points.

problem Challenges in learning good hyperbolic representations using Euclidean operations.
method Proposes HKConv, a trainable hyperbolic convolution that correlates local features with kernel points and aggregates them.
result HKConv learns expressive local features according to hyperbolic geometry and enjoys equivariance to permutation and invariance to parallel transport.

DNNs improve localization from channel estimates, overcoming practical impairments.

problem Improving localization accuracy from channel estimates in Massive MIMO systems.
method Principled feature design for DNNs invariant to practical impairments.
result DNN achieves high localization accuracy and generalization capability.

Proposes a method for deriving local group invariant representations using kernel methods.

problem Invariance to nuisance transformations in group settings.
method Kernel methods and probability distributions over the group to induce distributions in the input feature space.
result Uniform convergence bounds and excess risk bounds for learning with local invariant random feature maps.

GADGET framework decomposes global feature effects using recursive partitioning.

problem Misleading global feature effects when feature interactions are present.
method Generalized additive decomposition of global effects (GADGET) based on recursive partitioning.
result Minimizes interaction-related heterogeneity of local feature effects.

LASE improves local network structure visualization by targeting locally low-dimensional regions.

problem Global spectral embedding fails to capture local geometric features in sparse, transitive networks.
method Local Adjacency Spectral Embedding (LASE) using weighted spectral decomposition.
result LASE reveals locally low-dimensional structure, improving local reconstruction and visualization.

This paper presents a spermwhale' localization architecture using jointly a bag-of-features (BoF) approach and machine learning framework. BoF methods are known, especially in computer vision, to produce from a collection of local features a global representation invariant to principal signal transformations. Our idea …

2013-06-13abs ↗pdf ↗