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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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0111 · Feb 202319922001200920172026
3 results for “eigen-analysis”
Critically Damped Third-Order Langevin Dynamicsstat.ML

TOLD++ improves convergence of diffusion models by critically damping the forward transition matrix.

problem Improving the convergence of Denoising Diffusion Probabilistic Models.
method Critically damping the Third-Order Langevin Dynamics (TOLD) forward transition matrix using eigen-analysis.
result TOLD++ converges faster than TOLD, verified on toy and real datasets.
Denoising Diffusion Probabilistic ModelsThird-Order Langevin DynamicsEigen-analysisConvergenceCritically-damped
2024-09-12abs ↗pdf ↗
Dimension Reduction and MARSstat.ME

Improves MARS for nonparametric multivariate regression with dimension reduction.

problem High number of basis functions in MARS for high-order interactions.
method Linear combinations of covariates for dimension reduction, facilitating gradient calculation and eigen-analysis for estimation.
result Asymptotic theory and numerical studies show improved performance over MARS.
MARSnonparametric regressiondimension reductioneigen-analysisgradient calculation
2023-02-11abs ↗pdf ↗
CP-factorization for high dimensional tensor time series and double projection iterationsstat.ME

CP-factorization for high-dimensional tensor time series and double projection iterations

problem Identifying and estimating factor loadings in CP decomposition for high-dimensional tensor time series
method One-pass estimation procedure using standard eigen-analysis for matrix constructed based on serial dependence
result Asymptotic properties established under general settings, adapt to sparsity, accommodates weak factors
CP-factorizationhigh-dimensionaltensor time seriesdouble projectioniterative algorithm
2026-06-07abs ↗pdf ↗