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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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2595187761,035 · Jun 202019922001200920182026
48 results for related problems

Abstractor enhances Transformers for relational reasoning, improving sample efficiency and performance.

problem Improving sample efficiency and performance in relational tasks.
method Introduces Abstractor module with relational cross-attention to enable explicit relational reasoning.
result Dramatic improvements in sample efficiency and performance on various relational tasks.

A mass-type invariant for smooth metric measure spaces and its relation with the fractional Yamabe problem

problem Defining and analyzing a mass-type invariant for smooth metric measure spaces
method Defining a mass-type quantity and showing its geometric invariance properties
result The mass-type quantity has a close relation with the fractional Yamabe problem and the relevant Green's function

Study of a flow related to the Orlicz-Minkowski problem for convex hypersurfaces.

problem Orlicz-Minkowski problem involving Gauss curvature and support function.
method Generalized Gauss curvature flow for convex hypersurfaces in Euclidean n-space.
result Long-time existence and convergence of the flow, leading to existence results for the Orlicz-Minkowski problem.

The wave equation (free boson) problem is studied from the viewpoint of the relations on the symplectic manifolds associated to the boundary induced by solutions. Unexpectedly there is still something to say on this simple, well-studied problem. In particular, boundaries which do not allow for a meaningful Hamiltonian …

2013-08-26abs ↗pdf ↗

Study optimality conditions for interval-valued optimization problems on Riemannian manifolds.

problem Optimizing interval-valued functions on Riemannian manifolds under a total order relation.
method Generalized Hukuhara directional differentiability to derive KKT-type optimality conditions.
result Derives optimality conditions for interval-valued optimization problems on Riemannian manifolds.

We give two applications of the 2-Engel relation, classically studied in finite and Lie groups, to the 4-dimensional topological surgery conjecture. The A-B slice problem, a reformulation of the surgery conjecture for free groups, is shown to admit a homotopy solution. We also exhibit a new collection of universal surg…

2014-12-16abs ↗pdf ↗

We consider a long-term optimal investment problem where an investor tries to minimize the probability of falling below a target growth rate. From a mathematical viewpoint, this is a large deviation control problem. This problem will be shown to relate to a risk-sensitive stochastic control problem for a sufficiently l…

2010-01-13abs ↗pdf ↗

A novel AIRLS algorithm for multiaffine variable relations in high-dimensional problems.

problem Challenges in Maximum Likelihood Estimation in high-dimensional settings with complex variable relations.
method Proposes an Alternating and Iteratively-Reweighted Least Squares (AIRLS) algorithm for multiaffine variable relations.
result Proves convergence for problems with Generalized Normal Distributions and shows empirically super-linear convergence rate.

We study the isoperimetric problem in Euclidean space endowed with a density. We first consider piecewise constant densities and examine particular cases related to the characteristic functions of half-planes, strips and balls. We also consider continuous modification of Gauss density in R2\R^2. Finally, we give a list…

2009-06-08abs ↗pdf ↗

Paper uses knowledge bases to discover new relations from text.

problem Discover new relations from text without annotated data.
method Construct constraints based on knowledge base embeddings and incorporate into variational auto-encoder for relation discovery.
result Improves relation discovery performance significantly.

A new model improves relation extraction accuracy through relation-gated adversarial learning.

problem Relation extraction from sentences is challenging due to expensive human annotation and noisy distant supervision.
method Proposes relation-gated adversarial learning for relation extraction, extending domain adaptation methods.
result The model outperforms previous domain adaptation methods and improves accuracy of distance supervised relation extraction.

A celebrated financial application of convex duality theory gives an explicit relation between the following two quantities: (i) The optimal terminal wealth X(T):=Xφ(T)X^*(T) : = X_{\varphi^*}(T) of the problem to maximize the expected UU-utility of the terminal wealth Xφ(T)X_{\varphi}(T) generated by admissible portfolios $\varp…

2013-04-18abs ↗pdf ↗

We study the following problem: given an Einstein metric on a manifold, characterize and study all Einstein metrics which are pointwise projective to the given one. By definition, two metrics are said to be pointwise projectively related if they have the same geodesics as point sets. This is closely related to Hilbert'…

1999-10-19abs ↗pdf ↗

Compact method proves Brown-York mass positivity and connects to major conjectures.

problem Proving positivity of Brown-York's mass and its connections to conjectures.
method Compact approach to proving mass positivity and exploring connections.
result Proved the positivity of Brown-York's mass and its relation to conjectures.

New method improves graph neural networks by considering different types of relations in sampling.

problem Current graph neural networks ignore relation types in biomedical graphs, leading to suboptimal performance.
method Proposes relation-dependent sampling for multi-relational graphs to balance relation frequency and importance.
result State-of-the-art graph neural networks achieve better accuracy and efficiency with relation-dependent sampling.

We present and discuss some open problems formulated by participants of the International Workshop "Knots, Braids, and Auto\-mor\-phism Groups" held in Novosibirsk, 2014. Problems are related to palindromic and commutator widths of groups; properties of Brunnian braids and two-colored braids, corresponding to an amalga…

2015-01-22abs ↗pdf ↗

Bayesian approach improves network lasso for multi-task learning.

problem Improving the determination of relational coefficients in network lasso.
method Proposes a Bayesian approach to solve multi-task learning problems using network lasso.
result Objective determination of relational coefficients through Bayesian estimation.

New method uses spectral geometry to improve matrix completion with geometric relations.

problem Matrix completion problems with underlying geometric or topological relations.
method Interprets DMF through spectral geometry to incorporate explicit regularization.
result DMF models can exploit geometric relations, improving performance on real benchmarks.

Relational learning can be used to augment one data source with other correlated sources of information, to improve predictive accuracy. We frame a large class of relational learning problems as matrix factorization problems, and propose a hierarchical Bayesian model. Training our Bayesian model using random-walk Metro…

2012-03-15abs ↗pdf ↗

In this paper we introduce in study the projectively related complex Finsler metrics. We prove the complex versions of the Rapcsák's theorem and characterize the weakly Kähler and generalized Berwald projectively related complex Finsler metrics. The complex version of Hilbert's Fourth Problem is also pointed out. As an…

2011-06-05abs ↗pdf ↗

GMNN combines conditional random fields and graph neural networks for relational data.

problem Semi-supervised object classification in relational data.
method Combines conditional random fields and graph neural networks. Uses variational EM algorithm for training.
result GMNN achieves state-of-the-art results on object classification, link classification, and unsupervised node representation learning.