Results 11 to 20 of about 2,990,696 (280)
Ecology and Evolution, 2020 Semi‐natural mountain grasslands are increasingly exposed to environmental stress under climate change. However, which are the environmental factors that limit plants in these grasslands?
Nils Stanik +2 more
doaj +1 more source
Smoothed Analysis for the Conjugate Gradient Algorithm [PDF]
, 2016 The purpose of this paper is to establish bounds on the rate of convergence of the conjugate gradient algorithm when the underlying matrix is a random positive definite perturbation of a deterministic positive definite matrix.
Menon, Govind, Trogdon, Thomas
core +1 more source
Ecology and Evolution, 2022 The ecological niche sensu Hutchinson is defined as the set of environmental conditions allowing a species to grow, maintain, and reproduce. This conception of the niche, which is assimilated to a p‐dimensional hypervolume, with p representing all ...
Loïck Kléparski, Grégory Beaugrand
doaj +1 more source
Frequency Analysis of Gradient Estimators in Volume Rendering [PDF]
, 1995 Gradient information is used in volume rendering to classify and color samples along a ray. In this paper, we present an analysis of the theoretically ideal gradient estimator and compare it to some commonly used gradient estimators.
Bentum, Mark J. +2 more
core +4 more sources
Remote Sensing, 2014 Cultivated land resources are an important basis of regional sustainability; thus, it is important to determine the distribution of the cultivated land in the Northeast Asia trans-boundary area of China, Russia and Mongolia, which has a continuous ...
Juanle Wang +4 more
doaj +1 more source
Frontiers in Earth Science, 2023 The deep boundary and contact relationship between the Yangtze and Cathaysia Blocks (the major tectonic units of the Southern China Block), as well as the tectonic attributes of the Jiangnan Orogenic Belt, have remained unknown or controversial.
Rubing Han +7 more
doaj +1 more source
Seasonal variability of thermal fronts in the Southwestern Arafura Sea in El Niño dan La Niña [PDF]
BIO Web of ConferencesSea surface temperature (SST) thermal fronts in eastern Indonesian waters are strongly modulated by monsoonal winds and regional interactions. Previous studies have mainly focused on the northern Arafura Sea and the Banda Sea, where strong upwelling and ...
Hanifah Nabila N. +3 more
doaj +1 more source
Structural Flyby Characterization of Nanoporosity [PDF]
, 2004 Recently, Ferreira da Silva et al. [3] have performed a gradient pattern analysis of a canonical sample set (CSS) of scanning force microscopy (SFM) images of p-Si.
Andersen +8 more
core +1 more source
Range estimation from Intensity Gradient Analysis [PDF]
Machine Vision and Applications, 1989 The authors have developed a depth-recovery technique that completely avoids the computationally intensive steps of feature selection and correspondence required by conventional approaches. The intensity gradient analysis (IGA) technique is a depth-recovery algorithm that utilizes the properties of the MCSO (moving camera, stationary objects) scenario.
Jain, Ramesh C., Skifstad, Kurt D.
openaire +2 more sources
Multiscale Analysis of Accelerated Gradient Methods [PDF]
SIAM Journal on Optimization, 2020 Minor revisions; Accepted for Publication in SIAM Journal on ...
openaire +2 more sources