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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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275481108 · Jun 202019922001200920172026
48 results for arbitrariness

Researchers prove positive mass theorem for manifolds with arbitrary ends.

problem Proving the positive mass theorem for manifolds with non-compact ends.
method Developed techniques to handle non-compact singular sets and used Wloc1,pW^{1,p}_{\mathrm{loc}} metrics.
result Established positive mass theorem for C0C^0 arbitrary ends with Wloc1,pW^{1,p}_{\mathrm{loc}} metrics.

New metric reduces arbitrariness in fair binary classification predictions.

problem Variance in predictions leads to arbitrary decisions in fair classification.
method Developed a self-consistency metric and an abstention algorithm.
result Fair binary classification is often close to fair due to variance, not interventions.

Paper analyzes TD(λλ) convergence rates for arbitrary features.

problem Convergence rates for linear TD(λλ) under arbitrary features.
method Developed a novel stochastic approximation result for arbitrary features.
result Established L2L^2 convergence rates for linear TD(λλ) without linearly independent features assumption.

We prove that an arbitrary Poisson structure omega^{ij}(u) and an arbitrary closed 3-form T_{ijk}(u) generate the local Poisson structure A^{ij}(u,u_x) = M^i_s(u,u_x)omega^{sj}(u), where M^i_s(u,u_x)(delta^s_j + omega^{sp}(u)T_{pjk}(u)u^k_x) = delta^i_j, on the corresponding loop space. We obtain also a special graded …

2009-12-31abs ↗pdf ↗

The problem of an arbitrary truncated Levy flight description using the method of cumulant approach has been solved. The set of cumulants of the truncated Levy distribution given the assumption of arbitrary truncation has been found. The influence of truncation shape on the truncated Levy flight properties in the Gauss…

2010-06-12abs ↗pdf ↗

Culler-Shalen theory extended to arbitrary characteristic.

problem Understanding essential surfaces in 3-manifolds over arbitrary fields.
method Using character varieties and group actions on trees over arbitrary algebraically closed fields.
result Examples show changes in the AA-polynomial and essential surfaces in characteristic 2.

Classifies Killing forms of arbitrary degree on specific nilpotent Lie groups.

problem Classifying Killing forms of arbitrary degree on specific Lie groups.
method Analyzing left-invariant Killing forms on simply connected 2-step nilpotent Lie groups with left-invariant metrics.
result Classified Killing forms when center is at most 2-dimensional.

This paper studies eigenvalues of the buckling problem of arbitrary order on bounded domains in Euclidean spaces and spheres. We prove universal bounds for the k-th eigenvalue in terms of the lower ones independent of the domains. Our results strengthen the recent work in [28] and generalize Cheng-Yang's recent estimat…

2010-10-12abs ↗pdf ↗

Extends positive mass theorem to arbitrary dimensions using a new inductive scheme.

problem Overcoming singularities in the Schoen-Yau proof for arbitrary dimensions.
method Inductive scheme combining shielding principle, conformal blow-up, and Cheeger-Naber bound.
result Proof of positive mass theorem in arbitrary dimensions.

This paper examines fairness and arbitrariness in bias mitigation methods.

problem Understanding how different bias mitigation strategies affect individual predictions and whether they introduce arbitrariness.
method FRAME framework to evaluate bias mitigation through five dimensions: Impact Size, Change Direction, Decision Rates, Affected Subpopulations, and Neglected Subpopulations.
result Significant differences in the behaviors of debiasing methods were exhibited, highlighting the limitations of current fairness criteria and the inherent arbitrariness in the debiasing process.

Transformers can interpolate between arbitrary measures.

problem Understanding the expressive power of Transformers as measure-to-measure maps.
method Provided an explicit choice of parameters for a single Transformer to match N arbitrary input measures to N arbitrary target measures.
result A single Transformer can interpolate between arbitrary measures.

Differentiable optimization bridges arbitrary metrics to tree metrics.

problem Designing algorithms to convert arbitrary metrics to tree metrics with guarantees.
method DeltaZero framework, leveraging differentiable Gromov hyperbolicity.
result DeltaZero consistently achieves state-of-the-art distortion on synthetic and real-world datasets.

In the regression problem, L1 and L2 are the most commonly used loss functions, which produce mean predictions with different biases. However, the predictions are neither robust nor adequate enough since they only capture a few conditional distributions instead of the whole distribution, especially for small datasets. …

2019-11-13abs ↗pdf ↗

We define toric contact manifolds in arbitrary codimension and give a description of such manifolds in terms of a kind of labelled polytope embedded into a grassmannian, analogous to the Delzant polytope of a toric symplectic manifold.

2017-08-16abs ↗pdf ↗

The paper constructs CR manifolds with arbitrary Levi nondegeneracy.

problem Creating CR manifolds with specific Levi nondegeneracy properties.
method Using CRCR algebras from su(2)\mathfrak{su}(2) representations, studying iterated Levi forms, and local model equations.
result Explicit construction and analysis of homogeneous CR manifolds with arbitrary Levi nondegeneracy.

Algorithm estimates mixtures of arbitrary Gaussians robustly in presence of corruptions.

problem Estimating mixtures of arbitrary Gaussians in the presence of a constant fraction of arbitrary corruptions.
method Polynomial-time algorithm using partial clustering and tensor decomposition.
result Resolves the main open problem in several previous works on algorithmic robust statistics.

Proves spacetime positive mass theorem for spin initial data sets with arbitrary ends.

problem Proving the spacetime positive mass theorem for specific spacetime configurations.
method Solving a mixed boundary value problem for the Dirac-Witten operator with a Callias potential.
result Established spacetime positive mass theorem for asymptotically flat spin initial data sets with arbitrary ends.