Results 51 to 60 of about 493,705 (320)

On the equivalence of regularization schemes

open access: yes, 2001
We illustrated via the sunset diagram that dimensional regularization 'deforms' the nonlocal contents of multi-loop diagrams with its equivalence to cut-off regularization scheme recovered only after sub-divergence were subtracted.
Yang, Ji-Feng
core   +2 more sources

On universal oracle inequalities related to high-dimensional linear models [PDF]

open access: yes, 2010
This paper deals with recovering an unknown vector $\theta$ from the noisy data $Y=A\theta+\sigma\xi$, where $A$ is a known $(m\times n)$-matrix and $\xi$ is a white Gaussian noise.
Golubev, Yuri
core   +1 more source

Tumor mutational burden as a determinant of metastatic dissemination patterns

open access: yesMolecular Oncology, EarlyView.
This study performed a comprehensive analysis of genomic data to elucidate whether metastasis in certain organs share genetic characteristics regardless of cancer type. No robust mutational patterns were identified across different metastatic locations and cancer types.
Eduardo Candeal   +4 more
wiley   +1 more source

Regularization of the Boundary Equilibrium Bifurcation in Filippov System with Rich Discontinuity Boundaries

open access: yesAxioms
This paper studies a particular type of planar Filippov system that consists of two discontinuity boundaries separating the phase plane into three disjoint regions with different dynamics. This type of system has wide applications in various subjects. As
Nanbin Cao, Yue Zhang, Xia Liu
doaj   +1 more source

Adaptive L0 Regularization for Sparse Support Vector Regression

open access: yesMathematics, 2023
In this work, we proposed a sparse version of the Support Vector Regression (SVR) algorithm that uses regularization to achieve sparsity in function estimation.
Antonis Christou, Andreas Artemiou
doaj   +1 more source

Quadratically-Regularized Optimal Transport on Graphs

open access: yes, 2018
Optimal transportation provides a means of lifting distances between points on a geometric domain to distances between signals over the domain, expressed as probability distributions. On a graph, transportation problems can be used to express challenging
Essid, Montacer, Solomon, Justin
core   +1 more source

RaMBat: Accurate identification of medulloblastoma subtypes from diverse data sources with severe batch effects

open access: yesMolecular Oncology, EarlyView.
To integrate multiple transcriptomics data with severe batch effects for identifying MB subtypes, we developed a novel and accurate computational method named RaMBat, which leveraged subtype‐specific gene expression ranking information instead of absolute gene expression levels to address batch effects of diverse data sources.
Mengtao Sun, Jieqiong Wang, Shibiao Wan
wiley   +1 more source

Modeling a Spheroidal Particle Ensemble and Inversion by Generalized Runge–Kutta Regularizers from Limited Data

open access: yesAppliedMath, 2022
Extracting information about the shape or size of non-spherical aerosol particles from limited optical radar data is a well-known inverse ill-posed problem.
Stefanos Samaras   +2 more
doaj   +1 more source

LambdaOpt: Learn to Regularize Recommender Models in Finer Levels

open access: yes, 2019
Recommendation models mainly deal with categorical variables, such as user/item ID and attributes. Besides the high-cardinality issue, the interactions among such categorical variables are usually long-tailed, with the head made up of highly frequent ...
Chen, Bei   +6 more
core   +1 more source

Regular Hypermaps

open access: yesEuropean Journal of Combinatorics, 1988
This paper studies the correspondence between topological hypermaps and algebraic hypermaps. A topological map is a decomposition of a surface into polygonal cells. A topological hypermap is a similar decomposition of an orientable surface with the ``edges'' and ``vertices'' (hyperedges and hypervertices) homeomorphic to closed discs.
Corn, David, Singerman, David
openaire   +2 more sources

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