Results 171 to 180 of about 1,708,415 (229)

Statistical Monitoring of Multivariate Count Data From Real‐Time Particle Counters

open access: yesQuality and Reliability Engineering International, Volume 42, Issue 8, Page 4765-4809, December 2026.
ABSTRACT In the pharmaceutical industry, production environments are monitored for bacterial contamination. Particle counters are increasingly investigated for real‐time monitoring of viable microorganisms using count data for different particle size intervals.
Mona Emampour   +2 more
wiley   +1 more source

On the additive image of zeroth persistent homology

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract For a category X$X$ and a finite field F$F$, we study the additive image of the functor H0(−;F)∗:rep(X,Top)→rep(X,VectF)$\operatorname{H}_0(-;F)_* \colon \operatorname{rep}(X, \mathbf {Top}) \rightarrow \operatorname{rep}(X, \mathbf {Vect}_F)$, or equivalently, of the free functor rep(X,Set)→rep(X,VectF)$\operatorname{rep}(X, \mathbf {Set ...
Ulrich Bauer   +3 more
wiley   +1 more source

Incorporating Latent Variables Using Nonnegative Matrix Factorization Improves Risk Stratification in Brugada Syndrome. [PDF]

open access: yesJ Am Heart Assoc, 2020
Tse G   +13 more
europepmc   +1 more source

Proper affine deformations of positive representations

open access: yesJournal of Topology, Volume 19, Issue 4, December 2026.
Abstract We define, for every positive Anosov representation of a nonabelian free group into SO(2n,2n−1)$\mathrm{SO}(2n,2n-1)$, a family of R4n−1$\mathbb {R}^{4n-1}$‐valued cocycles which induce proper affine actions on R4n−1$\mathbb {R}^{4n-1}$. We construct fundamental domains in R4n−1$\mathbb {R}^{4n-1}$ bounded by generalized crooked planes for ...
Jean‐Philippe Burelle   +1 more
wiley   +1 more source

Approximate nonnegative matrix factorization via alternating minimization

open access: yes, 2004
In this paper we consider the Nonnegative Matrix Factorization (NMF) problem: given an (elementwise) nonnegative matrix V ∈ R m×n + find, for assigned k, nonnegative matrices W ∈ R m×k + and H ∈ R k×n + such that V = W H.
Lorenzo Finesso   +3 more
core  

Sparse‐Well Diffusion Reconstructions Enable Groundwater Transport Equation Recovery and Plume Refinement

open access: yesGeophysical Research Letters, Volume 53, Issue 21, 16 November 2026.
Abstract Groundwater contamination assessments based on sparse wells rarely provide continuous hydraulic head and contaminant concentration fields for plume interpretation. Visually plausible reconstructions may not retain the transport information needed for physical diagnosis.
Zhiyu Jiao   +9 more
wiley   +1 more source

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