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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.

169,291 papers · 148 categories

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59118177236 · Jun 202019922001200920182026
48 results for local SVM

One of the limiting factors of using support vector machines (SVMs) in large scale applications are their super-linear computational requirements in terms of the number of training samples. To address this issue, several approaches that train SVMs on many small chunks of large data sets separately have been proposed in…

2015-07-23abs ↗pdf ↗

The paper improves SVM and localized SVM stability under triple perturbations.

problem Stability of SVMs and localized SVMs under triple perturbations.
method Generalizes and improves existing results, considering simultaneous variations in probability measure, regularization parameter, and kernel.
result Improved stability of SVMs and localized SVMs under triple perturbations.

Support Vector Machines, SVMs, and the Large Margin Nearest Neighbor algorithm, LMNN, are two very popular learning algorithms with quite different learning biases. In this paper we bring them into a unified view and show that they have a much stronger relation than what is commonly thought. We analyze SVMs from a metr…

2012-01-23abs ↗pdf ↗

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.

Novel defense algorithm improves SVMs against data poisoning attacks.

problem Vulnerability of SVMs to targeted training data manipulations like poisoning attacks.
method Developed a weighted SVM using K-LID to de-emphasize suspicious data samples.
result Significant reduction in classification error rates (10% on average) with the proposed defense.

FDR-SVM improves classification robustness in federated learning with uncertain data.

problem Federated learning with uncertain and private client data.
method Develops FDR-SVM, a robust SVM approach using a mixture of Wasserstein balls ambiguity set.
result Establishes theoretical guarantees and derives algorithms with performance bounds.

Efficiently solves large-scale SVMs with sparse semismooth Newton method.

problem Numerical difficulties in solving large-scale SVMs.
method Sparse semismooth Newton based augmented Lagrangian method.
result Outperforms state-of-the-art solvers for large-scale SVMs.

Optimizes one-class classification methods for better performance.

problem Improving one-class classification accuracy through hyperparameter optimization.
method Hyperparameter optimization for five one-class classification methods (SVM, NND, LNND, LOF, ALP) using various datasets.
result ALP and SVM perform best after hyperparameter optimization, with ALP being more efficient.

A new method for high-dimensional classification using Bernstein polynomials.

problem Computational difficulties in high-dimensional SVM hinge loss.
method Proposes Bernstein support vector machine (BernSVM) and two efficient algorithms.
result Achieves a prediction accuracy rate of slog(p)/n\sqrt{s\log(p)/n} with high probability.

We investigate a family of poisoning attacks against Support Vector Machines (SVM). Such attacks inject specially crafted training data that increases the SVM's test error. Central to the motivation for these attacks is the fact that most learning algorithms assume that their training data comes from a natural or well-…

2012-06-27abs ↗pdf ↗

This work extends SVM error bounds to weighted SVM and introduces hyperparameter selection methods.

problem Improving SVM performance through effective hyperparameter selection.
method Extending span error bound theory to weighted SVM and introducing hyperparameter selection methods.
result The span rule is the most effective method for weighted SVM hyperparameter selection and provides the best predictor of test error.

Support vector machines (SVMs) are invaluable tools for many practical applications in artificial intelligence, e.g., classification and event recognition. However, popular SVM solvers are not sufficiently efficient for applications with a great deal of samples as well as a large number of features. In this paper, thus…

2010-08-24abs ↗pdf ↗

Optimal posterior distributions improve SVM classifiers and parameter selection.

problem Improving SVM classifiers and selecting optimal regularization parameters.
method PAC-Bayesian approach with optimal posterior identification for stochastic classifiers.
result Optimal posteriors yield tight risk bounds and improved SVM performance.

Paper addresses SVM bias in high-dimension, low-sample-size settings.

problem Bias in SVM performance in high-dimension, low-sample-size settings.
method Proposes a bias-corrected SVM (BC-SVM) to improve SVM performance.
result BC-SVM gives preferable performances in high-dimension, low-sample-size settings.

Prior knowledge can be used to improve predictive performance of learning algorithms or reduce the amount of data required for training. The same goal is pursued within the learning using privileged information paradigm which was recently introduced by Vapnik et al. and is aimed at utilizing additional information avai…

2013-06-13abs ↗pdf ↗

Novel SVM approach for extreme quantile regression with heavy tailed inputs.

problem Learning from extreme values in quantile regression.
method Support Vector Machine framework for handling high-dimensional and nonlinear settings.
result Established finite-sample learning guarantees under mild regularity assumptions.

Paper introduces MKL-L0/1L_{0/1}-SVM for SVM with (0,1)(0, 1) loss.

problem Optimization of SVM with (0,1)(0, 1) loss function.
method MKL framework combined with ADMM algorithm for solving the optimization problem.
result Performance of MKL-L0/1L_{0/1}-SVM comparable to SimpleMKL.

The paper uses KKT conditions to reveal new insights into SVM behavior.

problem Understanding SVM behavior and tuning.
method Using Karush-Kuhn-Tucker conditions to explore SVM connections with other classifiers.
result SVM can be seen as a cropped version of mean difference and maximal data piling direction classifiers.

SVM used for estimating treatment effects without confounding.

problem Estimating average treatment effects in the presence of confounding variables.
method Adapts SVM classifier as a kernel-based weighting procedure to balance covariates and estimate causal effects.
result SVM provides a continuous relaxation of the quadratic integer program for balancing covariates and maximizing effective sample size.

SaR-SVM-STV improves hyperspectral image classification with shape-adaptive reconstruction and denoising.

problem Classifying hyperspectral images with limited labeled data.
method Shape-adaptive Reconstruction (SaR) for pixel preprocessing, SVM for probability estimation, and Smoothed Total Variation (STV) for denoising.
result SaR-SVM-STV outperforms SVM-STV with fewer labeled data.

We describe a novel binary classification technique called Banded SVM (B-SVM). In the standard C-SVM formulation of Cortes et al. (1995), the decision rule is encouraged to lie in the interval [1, \infty]. The new B-SVM objective function contains a penalty term that encourages the decision rule to lie in a user specif…

2011-07-12abs ↗pdf ↗

Quantum LS-SVM simplifies matrix inversion for faster machine learning.

problem Speeding up machine learning algorithms for large datasets.
method Introduces a novel quantum algorithm using continuous variables to simplify matrix inversion in LS-SVM, and proposes a hybrid quantum-classical approach for sparse solutions.
result Quantum LS-SVM achieves exponential speed-up and can solve classically difficult tasks.

Paper examines M-SVM for multi-task learning, showing reliability and pre-convergence-rate factor improvements.

problem Whether MTL always provides reliable results and how MTL outperforms independent learning.
method Regularized multi-task learning (MTL) based on SVM models (M-SVM).
result M-SVM is Bayes risk consistent in large sample size, improving pre-convergence-rate factor (PCR) for small data.