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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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48 results for distance bounding

Sharp bounds found for distances between specific geometric shapes in hyperbolic space.

problem Finding effective distances between specific geometric shapes (tori) in hyperbolic 3-manifolds.
method Sharp, effective bounds on distances between tori of fixed injectivity radius.
result Effective bounds on distances between specific geometric shapes in hyperbolic space.

Bounds on geodesic distances on Stiefel manifold derived from new metrics.

problem Improving geodesic computation algorithms and understanding Stiefel manifold.
method New geometric insights and Lipschitz constants for geodesic distances.
result Explicit bounds on geodesic distances and conditions for attaining bounds.

The study improves PAC-Bayesian bounds for adversarial generative models.

problem Improving generalization bounds for adversarial generative models.
method Extending PAC-Bayesian theory to generative models, developing bounds for Wasserstein and total variation distances.
result New training objectives for Wasserstein and Energy-Based GANs.

Uniform distance distortion estimate for Ricci flows with bounded scalar curvature.

problem Analyzing Ricci flows with collapsing initial data.
method Uniform distance distortion estimate through renormalized metric-measure quantities.
result Uniform lower bounds of the renormalized heat kernel match with the lower bound of the renormalized volume ratio, proving distance distortion estimate.

Introduces spectral-domain Wasserstein distance and Gelbrich bound for elliptical processes.

problem Estimating distances and bounds for elliptical stochastic processes.
method Defines spectral-domain W2\mathcal{W}_2 Wasserstein distance and Gelbrich bound.
result Develops new spectral-domain bounds for non-elliptical processes.

The study bounds distances in simplicial complexes and defines new invariants for 3-manifolds and handlebody-knots.

problem Estimating distances in simplicial complexes associated with low-dimensional manifolds.
method Obtained bounds on distances in simplicial complexes using topological conditions on vertices and curve complexes. Defined new invariants for 3-manifolds and handlebody-knots using splitting distances.
result Splitting distances in simplicial complexes are bounded from below under stabilizations, leading to converging invariants.

The paper tightens bounds on distances between Reeb graphs.

problem Certifying quasi-universality of distances between Reeb graphs.
method Establishes tight bi-Lipschitz bounds for various distances.
result Proves strict universality of the functional contortion distance for contour trees and coincides with interleaving distance for merge trees.

Paper proposes Gini distance statistics for estimating feature-label dependence.

problem Identifying statistical dependence between features and categorical labels.
method Generalized Gini distance in RKHS for feature-label dependence estimation.
result Gini distance statistics converge faster and have tighter error bounds than distance covariance.

The density matrices are positively semi-definite Hermitian matrices of unit trace that describe the state of a quantum system. The goal of the paper is to develop minimax lower bounds on error rates of estimation of low rank density matrices in trace regression models used in quantum state tomography (in particular, i…

2015-07-17abs ↗pdf ↗

Upper bound for Hausdorff distance between hyperbolic space and its medianization.

problem Calculating the Hausdorff distance between hyperbolic space and its medianization.
method Using de Sitter space to model finite-dimensional hyperbolic space and its medianization, calculating the Hausdorff distance.
result An upper bound for the Hausdorff distance between hyperbolic space and its medianization is calculated.

This work provides guaranteed bounds on the total variation distance for univariate mixtures.

problem Lack of closed-form expressions for total variation distance between mixtures.
method Two methods: information monotonicity for lower bounds and geometric envelopes for upper bounds.
result Demonstrated tightness of bounds on Gaussian, Gamma, and Rayleigh mixtures.

The paper converts metric bounds to distance function Hölder bounds and proves compactness theorems.

problem Proving geometric stability results with scalar curvature bounds.
method Transforming LpL^p bounds to Hölder bounds for distance functions.
result Compactness theorems and convergence guarantees for Riemannian manifolds.

Translation distances in fibered 3-manifolds with boundary are bounded and grow with complexity.

problem Bounding translation distances in fibered 3-manifolds with boundary.
method Using essential surfaces with non-zero slope and analyzing their complexity.
result Translation distances are bounded and grow with complexity, supporting a conjecture.

Sharp bounds for max-sliced Wasserstein distances derived for empirical distributions.

problem Estimating the expected max-sliced Wasserstein distance between a probability measure and its empirical distribution.
method Banach space version and operator norm approach for upper bounds.
result Upper bounds for max-sliced Wasserstein distances are essentially matching and sharp up to a log factor.

This work tightens generalization error bounds using Wasserstein distance.

problem Improving expected generalization error bounds in machine learning.
method Introduces bounds based on Wasserstein distance for various settings.
result New, tighter bounds based on relative entropy and other information measures.

Establishes a lower bound for Kähler-Einstein distance on certain domains.

problem Finding a lower bound for Kähler-Einstein distance on specific types of domains.
method Proves an analog of the Hopf lemma for Riemannian manifolds with Ricci curvature bounded from below.
result Establishes a lower bound for the Kähler-Einstein distance on pseudoconvex domains with positive hyperconvexity index.

The paper connects geometric and topological concepts to bound distances between metric spaces.

problem Bounding distances between metric spaces using Gromov-Hausdorff distance.
method Using Borsuk-Ulam theorems and Vietoris-Rips complexes, the paper obstructs the existence of certain continuous maps between complexes to bound discontinuities of functions.
result The paper provides new bounds on Gromov-Hausdorff distances between spheres of different dimensions.

The paper connects geodesic nets to distance function critical points.

problem Understanding the relationship between geodesic nets and distance function critical points.
method Established a relationship between geodesic nets and critical points of the distance function.
result Bounded the number of balanced points and the length of certain minimizing geodesic nets.

Upper bounds on Wasserstein distance for empirical measures in unbounded functional spaces.

problem Analyzing convergence and concentration of empirical measures in unbounded functional spaces.
method Generalized upper bounds using Wasserstein distance, covering large dimensional Euclidean spaces and Gaussian processes.
result Rate-optimal upper bounds for functional data distributions with specific decay rates.

Exact 1-Wasserstein distance between location-scale distributions derived, with privacy effects studied.

problem Calculating the 1-Wasserstein distance between location-scale distributions and its impact on differential privacy.
method Exact expressions and special functions for 1-Wasserstein distance, new upper bounds, and asymptotic analysis.
result New linear upper bound and detailed asymptotic bounds for Gaussian case, effect of differential privacy studied.

The paper studies the distance from calibration in sequential prediction, proving upper and lower bounds.

problem The challenge is to measure and minimize the deviation from perfect calibration in sequential binary prediction.
method The approach involves proving an O(T)O(\sqrt{T}) upper bound and an Ω(T1/3)Ω(T^{1/3}) lower bound, using structural results and minimax arguments.
result An O(T)O(\sqrt{T}) upper bound on the calibration distance is achieved, with an Ω(T1/3)Ω(T^{1/3}) lower bound showing the inherent difficulty.

Study distance maps on spaces with curvature bound, proving regularity and sphere theorem.

problem Regularity of distance maps on geodesically complete spaces with curvature bound above.
method Define and prove regularity of distance maps as Hurewicz fibrations.
result Sphere theorem for geodesically complete CAT(1) spaces.

The paper bounds distances and transformations between pants decompositions and triangulations on surfaces.

problem Finding bounds on distances and transformations between pants decompositions and triangulations.
method Using pre-triangulations, train tracks, and Agol-Hass-Thurston algorithm.
result Upper bounds on distances and transformations between pants decompositions and triangulations.

Study exact Lagrangian cobordisms in cotangent bundles, proving bounds on sheaf interleaving distance and shadow distance.

problem Understanding Lagrangian cobordisms and their properties in cotangent bundles.
method Use microlocal theory of sheaves, sheaf quantization, and cone decompositions.
result Interleaving distance of sheaves is bounded by the shadow distance of the cobordism.

Sharp inequality between TV and Hellinger distances for Gaussian mixtures.

problem Understanding the relationship between total variation and Hellinger distances for Gaussian mixtures.
method Established a general upper bound on Hellinger distance in terms of TV distance raised to a power, demonstrating sharpness with specific examples.
result The Hellinger distance between two Gaussian mixtures is bounded by the TV distance raised to a power 1o(1)1-o(1), where o(1)o(1) is of order 1/loglog(1/TV)1/\log\log(1/\mathrm{TV}).

New method relaxes TV distance for two-sample testing without distributional assumptions.

problem Challenges in certifying equality or providing tight bounds on TV distance for two distributions.
method Examined blurred total variation distance, a relaxation of TV distance.
result Provided theoretical guarantees for upper and lower bounds on blurred TV distance.