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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.

168,657 papers · 148 categories

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57114170227 · Jun 202019922001200920172026
48 results for flatness-aware regularizers

This paper tackles optimizee generalization in L2O, improving generalization on various models.

problem L2O methods often struggle with optimizee generalization, leading to poor performance on unseen data.
method The paper introduces flatness-aware regularizers based on local entropy and Hessian to improve optimizee generalization.
result The proposed method significantly improves generalization performance on multiple sophisticated L2O models and diverse optimizees.

fSGLD optimizes deep learning by favoring flat regions in the loss landscape.

problem Understanding and improving the behavior and generalization of deep learning algorithms.
method Flatness-Aware Stochastic Gradient Langevin Dynamics (fSGLD) that biases learning towards flat basins.
result fSGLD targets a flatness-biased Gibbs distribution with explicit excess risk guarantees.

Proposes a method to sample from flat basins of posterior distributions in Bayesian deep learning.

problem Sampling from multi-modal posterior distributions leads to overfitting due to trapping in bad modes.
method Introduces an auxiliary guiding variable to bias MCMC sampling towards flat basins of the energy landscape.
result The method converges faster and outperforms existing methods in sampling from flat basins of the posterior.

AIR-Net adapts low-rank regularization dynamically for better image completion.

problem Fixed low-rank regularization limits adaptability to different images.
method AIR-Net uses adaptive and implicit regularization parameterized by a dynamic Laplacian matrix.
result AIR-Net enhances implicit regularization and outperforms fixed methods in non-uniform missing data scenarios.

Gradient descent implicitly regularizes neural networks by penalizing large loss gradients.

problem How to optimize deep neural networks without explicit regularization.
method Backward error analysis to calculate implicit gradient regularization and demonstrate its effectiveness empirically.
result Implicit gradient regularization biases gradient descent toward flat minima, improving model robustness and test errors.

Choquet regularization improves exploration in RL.

problem Improving exploration in reinforcement learning.
method Introducing Choquet regularizers to measure and manage exploration, reformulating RL problems and deriving explicit solutions.
result Explicit optimal distributions and Choquet regularizers for various exploratory samplers.

The paper explores optimal regularizers for data sources, linking them to star bodies.

problem Understanding optimal regularizers for data sources.
method Investigates optimal regularizers for data distributions using star bodies and dual Brunn-Minkowski theory.
result Identifies optimal regularizers and assesses amenability to convex regularization.

A triangulation of a connected closed surface is called weakly regular if the action of its automorphism group on its vertices is transitive. A triangulation of a connected closed surface is called degree-regular if each of its vertices have the same degree. Clearly, a weakly regular triangulation is degree-regular. In…

2004-03-25abs ↗pdf ↗

In this article, we describe symplectic and complex toric spaces associated to the five regular convex polyhedra. The regular tetrahedron and the cube are rational and simple, the regular octahedron is not simple, the regular dodecahedron is not rational and the regular icosahedron is neither simple nor rational. We re…

2016-11-30abs ↗pdf ↗

Study uses property elicitation to understand how fairness regularizers affect optimal decisions.

problem Understanding how fairness regularizers change the optimal decision in predictive algorithms.
method Property elicitation to analyze the relationship between loss, regularization, and optimal decision.
result Necessary and sufficient condition for when a property changes with the addition of a regularizer.

Fiedler regularization uses spectral graph theory to improve neural network performance.

problem Improving neural network performance by penalizing weights based on connectivity.
method Uses the Fiedler value of the neural network's graph as a regularization tool, providing theoretical and computational methods.
result Demonstrates Fiedler regularization's effectiveness in improving neural network performance.

We establish continuous maximal regularity results for parabolic differential operators acting on sections of tensor bundles on Riemannian manifolds. As an application, we show that solutions to the Yamabe flow instantaneously regularize and become real analytic in space and time. The regularity result is obtained by i…

2013-09-09abs ↗pdf ↗

Improved optimal regularity for harmonic almost complex structures.

problem Establishing optimal regularity for harmonic almost complex structures.
method Quantitative stratification method and rectifiability of singular strata.
result Optimal regularity theory for energy minimizing harmonic almost complex structures.

Dropout is a simple but effective technique for learning in neural networks and other settings. A sound theoretical understanding of dropout is needed to determine when dropout should be applied and how to use it most effectively. In this paper we continue the exploration of dropout as a regularizer pioneered by Wager,…

2014-12-15abs ↗pdf ↗

Regularization plays an important role in generalization of deep neural networks, which are often prone to overfitting with their numerous parameters. L1 and L2 regularizers are common regularization tools in machine learning with their simplicity and effectiveness. However, we observe that imposing strong L1 or L2 reg…

2018-11-20abs ↗pdf ↗

We study the evolution equations for a regularized version of Dirac-geodesics, which are the one-dimensional version of Dirac-harmonic maps. We show that for the regularization being sufficiently large, the evolution equations subconverge to a regularized Dirac-geodesic. In the end, we discuss the limiting process of r…

2013-11-14abs ↗pdf ↗

Entropy-regularized NPG converges linearly with linear function approximation.

problem Analyzing convergence of entropy-regularized NPG with function approximation.
method Established finite-time convergence analyses with entropy regularization and linear function approximation.
result Entropy-regularized NPG achieves linear convergence up to a function approximation error.

Regularized linear regression improves binary classification performance, especially with ridge and 1\ell_1 regularization.

problem Improving binary classification accuracy with noisy labels.
method Systematic study of regularization strengths on linear classifiers trained on noisy binary classification data.
result Ridge regression consistently improves classification error, while 1\ell_1 regularization can induce sparsity and \ell_\infty regularization can concentrate weights to two values.

New algorithm adds Hessian regularization to improve neural network robustness.

problem Improving neural network robustness against adversarial attacks.
method Proposes an efficient algorithm to train neural networks with Hessian operator-norm regularization.
result Hessian operator-norm regularization increases neural network robustness over input gradient regularization.

Study slice-regular polynomial functions via twistor space group actions.

problem Characterize slice-regular functions and their polynomial subclasses.
method Employ the twistor construction and group actions of PGL(2,H)\mathrm{PGL}(2,\mathbb{H}).
result Characterize slice-regular functions with planar twistor lifts and normal classes of polynomials.

Selective state-adaptive regularization improves offline RL performance.

problem Extrapolation errors and value overestimation in static dataset RL.
method State-adaptive regularization coefficients trust Bellman-driven results selectively.
result Significant improvement in performance on D4RL benchmark.

New framework assesses regularization norms in ill-posed problems, revealing L2 instability and proposing adaptive fractional RKHS solutions.

problem Comparative analysis of regularization norms in ill-posed problems.
method Small noise analysis framework for Tikhonov and RKHS regularizations.
result Optimal convergence rates achieved with adaptive fractional RKHS, but hyper-parameters decay too fast.

New iterative regularization method tackles non-smooth, non-strongly convex functionals.

problem Tackles non-smooth, non-strongly convex functionals in regularization problems.
method Primal-dual algorithm with convergence and stability analysis.
result First iterative regularization procedure for non-smooth, non-strongly convex functionals.

Regularizers change the geometric properties of loss functions in neural networks.

problem Understanding how different regularizers affect the geometric properties of loss functions in neural networks.
method Examined several regularizers, including weight decay, to determine if the regularized loss function becomes Morse.
result For certain regularizers, the regularized loss function becomes Morse, indicating a change in geometric properties.

A connected combinatorial 2-manifold is called degree-regular if each of its vertices have the same degree. A connected combinatorial 2-manifold is called weakly regular if it has a vertex-transitive automorphism group. Clearly, a weakly regular combinatorial 2-manifold is degree-regular and a degree-regular combinator…

2005-08-05abs ↗pdf ↗

New framework for robust regularization under uncertain data distributions.

problem Addressing ill-posed inverse problems and statistical estimation under distributional uncertainty.
method Distributionally robust optimal regularization using convex duality.
result Identifies robust regularizers that remain effective under data distributional perturbations.

Sharp bounds on diameter and eigenvalues for amply regular graphs.

problem Finding bounds for amply regular graphs' diameter and eigenvalues.
method New ideas relating discrete Ricci curvature to local matching properties, including a novel construction of a regular bipartite graph.
result Sharp diameter and eigenvalue bounds for amply regular graphs.

New regularizer improves neural network robustness and generalization.

problem Ineffective weight decay for networks with homogeneous activation functions.
method Proposes an invariant regularizer to penalize intrinsic weight norms.
result Improves generalization and adversarial robustness on various datasets.

DRAG decreases regularization to accelerate semi-discrete OT convergence.

problem Mitigating bias in semi-discrete OT problems with entropic regularization.
method DRAG: Decreasing Regularization Averaged Gradient, a stochastic gradient descent algorithm.
result DRAG achieves unbiased O(1/t)\mathcal{O}(1/t) sample and iteration complexity for OT cost and potential estimation, and O(1/t)\mathcal{O}(1/\sqrt{t}) rate for OT map.

Regularized mixtures improve inflation and interest rate forecasts, especially correcting overconfidence.

problem Improving density forecasts of Eurozone inflation and real interest rates.
method Construct regularized mixtures of density forecasts with various objectives and penalties.
result Regularized mixtures outperform individual forecasters, especially correcting overconfidence.

We formulate a principle for classification with the knowledge of the marginal distribution over the data points (unlabeled data). The principle is cast in terms of Tikhonov style regularization where the regularization penalty articulates the way in which the marginal density should constrain otherwise unrestricted co…

2012-10-19abs ↗pdf ↗

The study finds necessary and sufficient conditions for C1C^1-hypersurfaces to have nowhere C1C^1-regular parallel sets.

problem Conditions for C1C^1-hypersurfaces to have nowhere C1C^1-regular parallel sets.
method Proves a necessary and sufficient condition for C1C^1-hypersurfaces to have nowhere C1C^1-regular parallel sets.
result A necessary and sufficient condition for C1C^1-hypersurfaces to have nowhere C1C^1-regular parallel sets.

Study on regularity of optimal transport maps on convex domains with quadratic cost.

problem Regularity of optimal transport maps between convex domains with quadratic cost.
method Analysis of CαC^α-densities and C1,αC^{1, α} boundary conditions, monotonicity formula for optimal transport maps.
result Proves C1,1εC^{1, 1-\varepsilon}-regularity for nondegenerate CαC^α-densities and C2,αC^{2, α}-regularity for C1,αC^{1, α} boundary.

The paper studies how regularization parameters affect sparsity in deep neural networks.

problem Reducing the complexity of deep neural networks by promoting sparsity.
method Derives 1\ell_1-norm sparsity-promoting models, characterizes sparsity levels, and develops algorithms for selecting optimal regularization parameters.
result Developed algorithms to select regularization parameters for desired sparsity levels in neural networks.