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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.

168,695 papers · 148 categories

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75149224298 · Jun 202019922001200920172026
48 results for constrained regularization

This work compares regularization and constrained inference for label constraints in machine learning.

problem Improving model performance with label constraints in machine learning.
method Comparison of regularization and constrained inference strategies.
result Constrained inference reduces population risk by correcting model violations, while regularization narrows the generalization gap but introduces bias.

KL-constrained API shows optimization issues and improved with regularization.

problem Optimization issues in KL-constrained API algorithms.
method Comparison of KL divergence as a constraint vs. regularizer, empirical evaluation.
result KL-constrained API is not guaranteed to converge and incurs linear regret.

The paper shows regularization can't always find all optimal solutions in constrained ML.

problem Finding the right balance between model accuracy and constraint satisfaction.
method Formal demonstration of the limitations of regularization-based approaches in non-convex cases.
result There are optimal solutions for constrained problems that do not correspond to any multiplier value.

Symmetric TSP is structurally equivalent to a constrained Group Steiner Tree Problem.

problem Finding the shortest tour in a symmetric TSP.
method Structural equivalence between symmetric TSP and constrained Group Steiner Tree Problem.
result Maximizing net weight in the cGSTP is equivalent to minimizing the TSP tour length.

This paper studies the regularity of constrained Willmore immersions into Rm3\R^{m\ge3} locally around both "regular" points and around branch points, where the immersive nature of the map degenerates. We develop local asymptotic expansions for the immersion, its first, and its second derivatives, given in terms of resi…

2012-11-19abs ↗pdf ↗

This paper is concerned with the study of constrained statistical learning problems, the unconstrained version of which are at the core of virtually all of modern information processing. Accounting for constraints, however, is paramount to incorporate prior knowledge and impose desired structural and statistical proper…

2020-02-12abs ↗pdf ↗

Study Lipschitz regularity for manifold-constrained ROF model on curved surfaces.

problem Lipschitz regularity for manifold-constrained ROF model on curved surfaces.
method Generalization of ROF model, existence and uniqueness of minimizers, regularity results on PDE system.
result Lipschitz regularity of minimizers without convexity requirements.

AdamW optimizes a constrained loss with \ell_\infty norm constraint.

problem Understanding the optimization behavior of AdamW with \ell_\infty norm constraint.
method Analyzing AdamW as a smoothed version of SignGD and connecting it to Frank-Wolfe optimization.
result AdamW implicitly performs constrained optimization with \ell_\infty norm constraint.

A scalable framework optimizes multi-asset portfolios with constraints.

problem Optimizing multi-asset portfolios with inequality constraints.
method Integrates neural policies with Pontryagin's Maximum Principle, enforcing feasibility via log-barrier regularization.
result Recover KKT-optimal policies in high-dimensional problems without violating constraints.

The 1\ell_1-norm fails to produce sparse solutions in Laplacian constrained graphical models, leading to a complete graph.

problem Learning a sparse graph under Laplacian constrained Gaussian graphical models.
method Introduced a nonconvex sparsity penalty and proposed a new estimator using a sequence of weighted 1\ell_1-norm penalized sub-problems. Developed a projected gradient descent algorithm with linear convergence rate.
result The proposed estimator can recover the edges correctly with high probability and is effective on both synthetic and real-world data sets.

New method constrains CNN filter frequencies to improve robustness.

problem CNN bias towards low frequency components, leading to poor performance in scenario transformations.
method Frequency domain regularization by constraining filter spectra, training valid frequency range end-to-end.
result Demonstrated effectiveness in defending adversarial perturbations, reducing generalization gap, and improving transfer learning.

Unified framework for estimating high-dimensional conditional factor models.

problem Estimating high-dimensional conditional latent factor models with practical limitations.
method Constrained nuclear norm regularization and cross-validation for parameter selection.
result Imposing homogeneity improves model predictability, with new method outperforming alternatives.

This paper addresses the problem of sparsity penalized least squares for applications in sparse signal processing, e.g. sparse deconvolution. This paper aims to induce sparsity more strongly than L1 norm regularization, while avoiding non-convex optimization. For this purpose, this paper describes the design and use of…

2013-02-22abs ↗pdf ↗

Matrix completion has been well studied under the uniform sampling model and the trace-norm regularized methods perform well both theoretically and numerically in such a setting. However, the uniform sampling model is unrealistic for a range of applications and the standard trace-norm relaxation can behave very poorly …

2013-03-02abs ↗pdf ↗

The paper tackles sampling from Gibbs measures with constrained support, providing a sampling guarantee.

problem Sampling from Gibbs measures with constrained support, especially in the pre-asymptotic regime.
method Analyzing the spectral gap of Langevin dynamics to provide a non-asymptotic sampling guarantee.
result The low-temperature Gibbs distribution concentrates on a neighborhood of its mode in the pre-asymptotic regime.

We develop a 2D travel time tomography method which regularizes the inversion by modeling groups of slowness pixels from discrete slowness maps, called patches, as sparse linear combinations of atoms from a dictionary. We propose to use dictionary learning during the inversion to adapt dictionaries to specific slowness…

2017-12-16abs ↗pdf ↗

The concepts of risk-aversion, chance-constrained optimization, and robust optimization have developed significantly over the last decade. Statistical learning community has also witnessed a rapid theoretical and applied growth by relying on these concepts. A modeling framework, called distributionally robust optimizat…

2019-08-13abs ↗pdf ↗

Lockout solves sparse regularization for neural networks.

problem Sparse regularization for neural networks.
method Fast algorithm for finding all solutions to constrained optimization problems for differentiable functions and increasing monotone constraints.
result Sparse solutions are usually superior in accuracy and interpretability.

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.

Method solves nonconvex constrained optimization problems with a new augmented Lagrangian approach.

problem Nonconvex composite functional constraints with inequality constraints.
method First-order augmented Lagrangian method with smoothed prox-linear reformulation.
result Explicit convergence rates for the proposed method in terms of KKT residual.

A novel Bayesian optimization framework tackles multi-objective constrained problems.

problem Multi-objective optimization with constraints in engineering design.
method srMO-BO-3GP framework using three stacked Gaussian processes.
result Demonstrated effectiveness on benchmark functions and real thermomechanical model.

New method improves generative modeling on convex domains using regularized mirror maps and Student-t priors.

problem Challenges in generative modeling on convex domains with heavy-tailed targets.
method Mirror Flow Matching with regularized mirror maps and Student-t priors.
result Empirically outperforms baselines and achieves competitive sample quality.

Generative AI connects to Schrödinger bridge problems with soft constraints for stability.

problem Stability issues in generative AI due to hard terminal constraints.
method Soft-constrained Schrödinger bridge formulation and convergence analysis.
result Existence and convergence of optimal solutions as penalty grows.

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 ↗

Consider a physical system for which a mathematically rigorous geometric quantization procedure exists. Now subject the system to a finite set of irreducible first class (bosonic) constraints. It is shown that there is a mathematically rigorous BRST quantization of the constrained system whose cohomology at ghost numbe…

2006-04-12abs ↗pdf ↗

This paper presents a geometric description on Lie algebroids of Lagrangian systems subject to nonholonomic constraints. The Lie algebroid framework provides a natural generalization of classical tangent bundle geometry. We define the notion of nonholonomically constrained system, and characterize regularity conditions…

2005-12-01abs ↗pdf ↗

New method uses constrained transport metric for robust Bayesian inference.

problem Flexible Bayesian models with many uninterpretable parameters.
method Exponentially tilted empirical likelihood with a novel Wasserstein metric, combined with a prior.
result Superior performance compared to state-of-the-art robust Bayesian inference methods.

Optimal bounds on regret and constraint violation in adversarial COCO.

problem Minimizing regret and cumulative constraint violation in adversarial COCO.
method New surrogate loss function and Follow-the-Regularized-Leader/Online Gradient Descent.
result Achieved optimal O(T)O(\sqrt{T}) bounds on both regret and cumulative constraint violation.

The paper tackles safe reinforcement learning with convex regularization.

problem Safe reinforcement learning in complex, high-dimensional settings with safety constraints.
method Doubly-regularized RL framework combining reward and parameter regularization, formulated as a convex regularized objective with parametrized policies on an infinite-dimensional statistical manifold.
result Exponential convergence guarantees under sufficient regularization, robust theoretical insights and guarantees for safe RL.