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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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3396771,0161,354 · Jun 202019922001200920182026
48 results for adaptive feature generation

This paper improves neural network generalization by dynamically learning kernel parameters.

problem Improving neural network generalization and adaptability.
method Diagonal adaptive kernel model that learns kernel eigenvalues and output coefficients during training.
result The diagonal adaptive kernel model significantly improves generalization over fixed-kernel methods.

FOCA method prevents co-adaptation between feature extractor and classifier.

problem Co-adaptation between feature extractor and classifier degrades neural network performance.
method FOCA method uses randomly-generated, weak classifiers to optimize feature extractor without explicit co-adaptation.
result FOCA features form a point-like distribution within the same class under special conditions.

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.

Improves unsupervised domain adaptation by enforcing feature extractor to focus on task-relevant information.

problem Leveraging label information from source domain for accurate target domain models without labels.
method Variational Information Bottleneck (VBDA) method that explicitly enforces feature extractor to ignore irrelevant task factors.
result Significantly outperforms state-of-the-art methods across three domain adaptation benchmark datasets.

Interventional domain adaptation improves feature transferability by removing spurious correlations.

problem Improper feature transferability due to spurious correlations in domain adaptation.
method Intervention strategy using unlabeled target data to generate counterfactual features and train discriminability invariance.
result Consistent performance improvements over state-of-the-art approaches in various domain adaptation tasks.

AFN learns adaptive-order feature interactions for better predictive models.

problem Learning optimal feature interactions in predictive models.
method AFN uses a logarithmic transformation layer to learn arbitrary-order cross features adaptively.
result AFN outperforms state-of-the-art models on four real datasets.

Adaptive template systems improve feature extraction from persistence diagrams for machine learning.

problem Feature extraction from persistence diagrams for machine learning.
method Adaptive template systems using CDER, GMM, and HDBSCAN algorithms.
result Adaptive template systems yield competitive and often superior results in classification tasks.

AdapVAE learns streaming data clustering and feature learning adaptively.

problem Adaptive clustering and feature learning for streaming data.
method Bayesian Nonparametric (BNP) modeling with Deep Neural Networks (DNNs) for feature learning, online variational inference algorithm.
result AdapVAE can adaptively detect novel clusters in emerging data without catastrophic forgetting.

This paper explores how effective sample size, dimensionality, and model performance are related in covariate shift adaptation.

problem Understanding the relationship between effective sample size, dimensionality, and generalization in covariate shift adaptation.
method Building a unified theory connecting effective sample size, data dimensionality, and generalization in the context of covariate shift adaptation.
result Dimensionality reduction or feature selection can increase effective sample size, supporting the practice of reducing dimensionality before covariate shift adaptation.

TAROT enhances robustness and domain adaptability with domain-invariant features.

problem Developing models robust to adversarial attacks across diverse domains.
method Derives a new generalization bound and proposes TAROT algorithm.
result TAROT outperforms state-of-the-art methods in accuracy and robustness.

Semi-generative model learns causes and effects for covariate-shift adaptation.

problem Covariate shift adaptation with unlabelled data and causal features.
method Combines semi-supervised learning with causal features XCX_C and XEX_E.
result Significant improvements in classification over baselines.

CoSCA improves unsupervised domain adaptation by better aligning ambiguous target samples.

problem Missing alignment of ambiguous target samples in unsupervised domain adaptation.
method CoSCA explicitly incorporates intra- and inter-class domain discrepancy, estimating label hypotheses and optimizing a contrastive loss with MMD for better global alignment.
result CoSCA outperforms state-of-the-art approaches in producing more discriminative features.

The paper adapts step sizes in TD learning to identify relevant features.

problem Identifying which features are relevant for temporal-difference learning.
method Adapting step sizes in stochastic gradient descent for feature relevance in TD learning.
result TD IDBD effectively distinguishes relevant features in gridworld and robotic tasks.

No-trick kernel adaptive filtering uses deterministic features for scalability and robustness.

problem Scalability issues in kernel methods for large datasets.
method Deterministic feature-map construction using polynomial-exact solutions.
result Deterministic features outperform random Fourier features in performance and scalability.

Aligns uncertainty predictions for domain adaptation using pre-trained deep networks.

problem Domain adaptation with unlabelled target data.
method Adversarial learning to align uncertainty predictions between source and target domains.
result Class prediction uncertainty on target domain matches source domain.

This work bridges two views of feature learning in neural networks.

problem The relationship between kernel scale changes and data-adaptive feature learning in neural networks remains unresolved.
method Using statistical mechanics, the work derives analytical expressions for network output statistics across scaling regimes.
result Kernel adaptation can be reduced to an effective kernel rescaling, but multi-scale adaptive approach provides richer insights.

DMFAW improves multi-view clustering with adaptive weights and feature selection.

problem Lack of effective feature selection and empirical hyperparameter selection in existing deep matrix factorization methods.
method Introduces Deep Matrix Factorization with Adaptive Weights (DMFAW) for multi-view clustering, incorporating feature selection and dynamically updating weights using Control Theory.
result DMFAW outperforms state-of-the-art methods in clustering performance.

AFS-BM improves model accuracy by dynamically selecting features.

problem Feature selection challenges in ML, especially scalability and adaptability.
method Joint optimization for feature selection and model training with binary masking.
result AFS-BM achieves significant improvements in model accuracy and computational efficiency.

Multi-task feature learning aims to identity the shared features among tasks to improve generalization. It has been shown that by minimizing non-convex learning models, a better solution than the convex alternatives can be obtained. Therefore, a non-convex model based on the capped-1,1\ell_{1},\ell_{1} regularization wa…

2014-06-16abs ↗pdf ↗

Improves unsupervised domain adaptation methods by aligning class conditional distributions.

problem Domain shift between source and target domains makes supervised learning models fail to generalize.
method Co-regularized domain alignment, creating multiple feature spaces and aligning them individually while encouraging agreement across class predictions.
result Significant performance improvements on domain adaptation benchmarks.

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.

Proposes joint domain alignment and discriminative feature learning for deep domain adaptation.

problem Reduces domain shift and misclassification of target domain samples.
method Instance-based and center-based discriminative feature learning methods.
result Learning discriminative features in shared feature space significantly boosts deep domain adaptation performance.

Distributed sensors compress and send features to a fusion center for linear regression.

problem Efficiently compress and transmit features from distributed sensors to a fusion center under varying communication constraints.
method Designs a distributed and adaptive feature compression scheme using optimal quantizers and simple adaptive strategies.
result Demonstrates improved inference performance through simulated experiments.

Paper tackles online budgeted learning for feature acquisition in machine learning.

problem Finding optimal feature values to acquire from each instance in a data stream under budget constraints.
method Introduces a general framework for online budgeted learning, proposing two feature value acquisition policies: random and adaptive.
result Adaptive policies outperform random policies for most budget limitations and datasets, achieving near-optimal results in some cases.

A new method learns both global and local features for domain adaptation.

problem Lack of local relationship learning between instances in different domains.
method Dual autoencoders (MDAad and MMDA) for global and local feature learning, leveraging label information.
result Outperforms state-of-the-art methods in domain adaptation tasks.

The study analyzes transfer learning in infinite-width neural networks, improving generalization on target tasks.

problem Improving generalization in neural networks when using pretraining on a source task.
method Developed a theory under gradient flow for infinitely wide networks, analyzing fine-tuning and joint pretraining.
result Summary statistics of randomly initialized networks after pretraining are adaptive kernels that depend on both source and target data.

We introduce an unsupervised approach to efficiently discover the underlying features in a data set via crowdsourcing. Our queries ask crowd members to articulate a feature common to two out of three displayed examples. In addition we also ask the crowd to provide binary labels to the remaining examples based on the di…

2015-03-31abs ↗pdf ↗

CAM-GAN improves GANs for continual learning with efficient feature map transformations.

problem Efficient continual learning for GANs with reduced parameter growth.
method Designing and leveraging parameter-efficient feature map transformations, including global and task-specific parameters, residual bias, and Fisher information matrix.
result Significantly improved model performance and high-quality samples with fewer parameters.