Results 171 to 180 of about 4,865,824 (373)

A matter of timing: sagebrush steppe restoration seeding outcomes altered by species responses to warmer spring temperatures and interannual weather variation

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Restoration outcomes in cold desert ecosystems like sagebrush steppe are affected by weather variability, particularly during the spring, a critical time period for seedling establishment. Seedling emergence phenology is also highly variable among species in these ecosystems.
Stella M. Copeland   +3 more
wiley   +1 more source

Geodesic mapping onto Kählerian spaces of the first kind [PDF]

open access: green, 2014
Milan Lj. Zlatanović   +2 more
openalex   +1 more source

Geodesics in Goedel-Synge spaces

open access: yes, 1982
Our purpose is to study the geodesic lines in the form: ds2=dx2 + 2h(x4)dx1dx2 + g(x4)dx22 – dx23 – dx24, and to compare with the work of S. Chandrasekhar and J. P. Wright on geodesics in Gödel’s universe. We will give, first, an isometric embedding of the form ds2=dx2 + 2h(x4)dx1dx2 + g(x4)dx22 – dx23 – dx24 in a pseudo Euclidean space of 10 ...
openaire   +2 more sources

Semiparametric regression for circular response with application in ecology

open access: yesScandinavian Journal of Statistics, EarlyView.
ABSTRACT A regression model for a circular response variable depending on a linear or a circular predictor is presented in this paper. The conditional density belongs to a parametric flexible family that allows for asymmetry and varying peakedness around the modal direction.
Jose Ameijeiras‐Alonso, Irène Gijbels
wiley   +1 more source

A Cortical-Inspired Contour Completion Model Based on Contour Orientation and Thickness

open access: yesJournal of Imaging
An extended four-dimensional version of the traditional Petitot–Citti–Sarti model on contour completion in the visual cortex is examined. The neural configuration space is considered as the group of similarity transformations, denoted as M=SIM(2).
Ivan Galyaev, Alexey Mashtakov
doaj   +1 more source

Feature-Based Interpolation and Geodesics in the Latent Spaces of Generative Models [PDF]

open access: green, 2023
Łukasz Struski   +4 more
openalex   +1 more source

Spatial depth for data in metric spaces

open access: yesScandinavian Journal of Statistics, EarlyView.
Abstract We propose a novel measure of statistical depth, the metric spatial depth, for data residing in an arbitrary metric space. The measure assigns high (low) values for points located near (far away from) the bulk of the data distribution, allowing quantifying their centrality/outlyingness.
Joni Virta
wiley   +1 more source

Functional inequalities and Hamilton-Jacobi Equations in Geodesic Spaces [PDF]

open access: green, 2009
Zoltán M. Balogh   +3 more
openalex   +1 more source

Geodesic PCA in the Wasserstein space by Convex PCA

open access: yes, 2017
Jérémie Bigot   +3 more
semanticscholar   +1 more source

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