Results 41 to 50 of about 10,757,449 (291)

On kernel-based estimation of conditional Kendall’s tau: finite-distance bounds and asymptotic behavior

open access: yesDependence Modeling, 2019
We study nonparametric estimators of conditional Kendall’s tau, a measure of concordance between two random variables given some covariates. We prove non-asymptotic pointwise and uniform bounds, that hold with high probabilities.
Derumigny Alexis, Fermanian Jean-David
doaj   +1 more source

The effects of heterogeneous mechanical properties on the response of a ductile material

open access: yesScientific Reports, 2021
We investigate numerically the small-strain, elastic–plastic response of statistically isotropic materials with non-uniform spatial distributions of mechanical properties. The numerical predictions are compared to simple bounds derived analytically.
Yichi Song   +2 more
doaj   +1 more source

Non-uniform Stepping Approach to RFID Distance Bounding Problem

open access: yes, 2011
RFID systems are vulnerable to relay attacks (mafia fraud and terrorist fraud) as well as distance fraud. Several distance bounding protocols suitable to RFID systems were proposed to avoid these attacks. The common point of these protocols is to try to reduce success probability of the attacker.
Gurel, Ali Ozhan   +2 more
openaire   +3 more sources

An Algorithmic Approach to Uniform Lower Bounds [PDF]

open access: yes, 2023
We propose a new family of circuit-based sampling tasks, such that non-trivial algorithmic solutions to certain tasks from this family imply frontier uniform lower bounds such as "NP is not in uniform ACC⁰" and "NP does not have uniform polynomial-size ...
Santhanam, Rahul
core   +1 more source

Distributional approximations for the number of sign changes and the maximum value of a symmetric random walk

open access: yesJournal of Inequalities and Applications
Two path statistics of a symmetric random walk, namely the number of sign changes and the maximum value, are approximated by a half normal distribution.
Tatpon Siripraparat   +1 more
doaj   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

A NON-UNIFORM BOUND ON GEOMETRIC APPROXIMATION TO THE YULE DISTRIBUTION [PDF]

open access: yesInternational Journal of Pure and Apllied Mathematics, 2013
The aim of this paper, we use Stein's method and the w-function associated with the Yule random variable to obtain a non-uniform bound for the point metric of the Yule and geometric distributions. Three numerical examples are provided to illustrate the obtained result.
openaire   +1 more source

Constructing Algorithmic Stability from Support Unlearning

open access: yesMathematics
Uniform algorithmic stability is a classical route to non-vacuous generalization bounds, yet existing analyses typically track the forward optimization trajectory on adjacent training sets.
Huixin Ma   +2 more
doaj   +1 more source

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