Results 1 to 10 of about 129,468 (185)

Interpreting estimated observation error statistics of weather radar measurements using the ICON-LAM-KENDA system [PDF]

open access: yesAtmospheric Measurement Techniques, 2021
Assimilation of weather radar measurements including radar reflectivity and radial wind data has been operational at the Deutscher Wetterdienst, with a diagonal observation error (OE) covariance matrix.
Y. Zeng   +8 more
doaj   +1 more source

Outlier-Robust Superpixel-Level CFAR Detector With Truncated Clutter for Single Look Complex SAR Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
The constant false alarm rate (CFAR) detectors are well studied for ship detection in synthetic aperture radar (SAR) images, which suffer performance degradation due to the capture effect from interfering outliers, such as nearby targets, sidelobes, and ...
Tao Li, Dongliang Peng, Sainan Shi
doaj   +1 more source

Efficient Truncated Statistics with Unknown Truncation [PDF]

open access: yes2019 IEEE 60th Annual Symposium on Foundations of Computer Science (FOCS), 2019
We study the problem of estimating the parameters of a Gaussian distribution when samples are only shown if they fall in some (unknown) subset $S \subseteq \R^d$. This core problem in truncated statistics has long history going back to Galton, Lee, Pearson and Fisher. Recent work by Daskalakis et al.
Kontonis, Vasilis   +2 more
openaire   +2 more sources

The Importance of Weakly Co-Evolving Residue Networks in Proteins is Revealed by Visual Analytics

open access: yesFrontiers in Bioinformatics, 2022
Small changes in a protein’s core packing produce changes in function, and even small changes in function bias species fitness and survival. Therefore individually deleterious mutations should be evolutionarily coupled with compensating mutations that ...
Sidharth Mohan   +4 more
doaj   +1 more source

Technical note: Equilibrium droplet size distributions in a turbulent cloud chamber with uniform supersaturation [PDF]

open access: yesAtmospheric Chemistry and Physics, 2020
In a laboratory cloud chamber that is undergoing Rayleigh–Bénard convection, supersaturation is produced by isobaric mixing. When aerosols (cloud condensation nuclei) are injected into the chamber at a constant rate, and the rate of droplet activation is
S. K. Krueger
doaj   +1 more source

New Method for Imputation of Unquantifiable Values Using Bayesian Statistics for a Mixture of Censored or Truncated Distributions: Application to Trace Elements Measured in Blood of Olive Ridley Sea Turtles from Mexico

open access: yesAnimals, 2022
One recurring difficulty in ecotoxicological studies is that a substantial portion of concentrations are below the limits of detection established by analytical laboratories.
Inmaculada Salvat-Leal   +3 more
doaj   +1 more source

Adaptive trajectory estimation with power limited steering model under perturbation compensation

open access: yesMeasurement + Control, 2022
Trajectory estimation of maneuvering objects is applied in numerous tasks like navigation, path planning and visual tracking. Many previous works get impressive results in the strictly controlled condition with accurate prior statistics and dedicated ...
Zhengjie Zhu   +5 more
doaj   +1 more source

Remarkable statistical behavior for truncated Burgers–Hopf dynamics [PDF]

open access: yesProceedings of the National Academy of Sciences, 2000
A simplified one-dimensional model system is introduced and studied here that exhibits intrinsic chaos with many degrees of freedom as well as increased predictability and slower decay of correlations for the large-scale features of the system. These are important features in common with vastly more complex problems involving climate modeling or ...
Majda, Andrew J., Timofeyev, Ilya
openaire   +2 more sources

Modeling left-truncated and right-censored survival data with longitudinal covariates [PDF]

open access: yes, 2012
There is a surge in medical follow-up studies that include longitudinal covariates in the modeling of survival data. So far, the focus has been largely on right-censored survival data.
Su, Yu-Ru, Wang, Jane-Ling
core   +1 more source

Spectroscopic Constraints on the Form of the Stellar Cluster Mass Function [PDF]

open access: yes, 2012
This contribution addresses the question of whether the initial cluster mass function (ICMF) has a fundamental limit (or truncation) at high masses. The shape of the ICMF at high masses can be studied using the most massive young (
Adamo   +47 more
core   +2 more sources

Home - About - Disclaimer - Privacy