Results 61 to 70 of about 3,323 (160)

Existence Analysis of a Three‐Species Memristor Drift‐Diffusion System Coupled to Electric Networks

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 8, Page 8095-8117, 30 May 2026.
ABSTRACT The existence of global weak solutions to a partial‐differential‐algebraic system is proved. The system consists of the drift‐diffusion equations for the electron, hole, and oxide vacancy densities in a memristor device, the Poisson equation for the electric potential, and the differential‐algebraic equations for an electric network.
Ansgar Jüngel, Tuấn Tùng Nguyến
wiley   +1 more source

$k$-MLE: A fast algorithm for learning statistical mixture models

open access: yes, 2012
We describe $k$-MLE, a fast and efficient local search algorithm for learning finite statistical mixtures of exponential families such as Gaussian mixture models.
Nielsen, Frank
core   +1 more source

Habitat Loss Shapes Isotopic Niche Responses of a Didelphid Opossum to Fragmentation in Neotropical Semideciduous Dry Forests of Central Brazil

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
Stable isotope analysis indicates that fragmentation and habitat loss in semideciduous dry forests in the Brazilian Cerrado drive trophic niche shifts in Gracilinanus agilis, with potential consequences for its role as a seed disperser. ABSTRACT Habitat loss and fragmentation have notable effects on species' trophic ecology, often most pronounced in ...
Ingrid de Mattos   +4 more
wiley   +1 more source

Total Variation Regularized GRACE(‐FO) Inversion

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Gravity estimation from satellite‐satellite tracking missions such as GRACE(‐FO) is an ill‐posed inverse problem. The conventional approach to regularized inversion of GRACE(‐FO) measurements uses L2 ${L}_{2}$‐Tikhonov regularization with a heuristic constraint matrix derived based on knowledge of spatiotemporal distribution of the signal ...
G. Jacob   +4 more
wiley   +1 more source

Convex Relaxations of Bregman Divergence Clustering

open access: yesCoRR, 2013
Appears in Proceedings of the Twenty-Ninth Conference on Uncertainty in Artificial Intelligence (UAI2013)
Hao Cheng 0002   +2 more
openaire   +3 more sources

Debate: Young people are living in unprecedented times – too much chaos or too little resilience?: No Pain, No Gain? Why articulating distress marks youth resilience

open access: yesChild and Adolescent Mental Health, Volume 31, Issue 2, Page 137-139, May 2026.
Rising levels of anxiety and depression among children and adolescents are increasingly cited as evidence that today's youth are growing up in a world of unprecedented chaos and diminishing resilience. Yet, this interpretation rests on a fragile assumption: that greater expression of distress necessarily signals weaker coping.
Levi van Dam
wiley   +1 more source

Metrics defined by Bregman Divergences [PDF]

open access: yesCommunications in Mathematical Sciences, 2008
Bregman divergences are generalizations of the well known Kullback-Leibler divergence. They are based on convex functions and have recently received great attention. We present a class of “squared root metrics” based on Bregman divergences. They can be regarded as natural generalization of Euclidean distance.
Chen, P., Chen, Y., Rao, M.
openaire   +2 more sources

Management of the Marine Pest Undaria pinnatifida at a High Value Marine Protected Area

open access: yesEcological Management &Restoration, Volume 27, Issue 2, May 2026.
ABSTRACT Controlling the invasive species Undaria pinnatifida remains a worldwide issue with very few successful eradications reported. Following the detection of U. pinnatifida within a Marine Protected Area in Victoria, Australia, in 2017, an ongoing management program was implemented, with monitoring occurring until 2022.
Jacqueline B. Pocklington   +3 more
wiley   +1 more source

A Contextual Accuracy Dominance Argument for Probabilism

open access: yesPhilosophy and Phenomenological Research, Volume 112, Issue 3, Page 594-607, May 2026.
ABSTRACT A central motivation for Probabilism—the principle of rationality that requires one to have credences that satisfy the axioms of probability—is the accuracy dominance argument: one should not have accuracy dominated credences, and one avoids accuracy dominance just in case one satisfies Probabilism.
Mikayla Kelley
wiley   +1 more source

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