Results 21 to 30 of about 6,417 (238)

On periodic solutions of nonautonomous second order Hamiltonian systems with $(q,p)$-Laplacian

Electronic Journal of Qualitative Theory of Differential Equations, 2016
A new existence result is obtained for nonautonomous second order Hamiltonian systems with $(q,p)$-Laplacian by using the minimax methods.
Daniel Pasca, Zhiyong Wang
doaj   +1 more source

AI‐Physics‐Experiment Trinity for Integrated Protein Dynamics Modeling

Advanced Science, EarlyView.
This review unites experiments, physics‐based simulations, and AI as a synergistic triad for protein dynamics modeling. It highlights integrative strategies, resolves sampling and forcefield bottlenecks, and outlines challenges and future directions for accurate, interpretable conformational ensemble prediction.
Chen Shi, Minying Low, Peng Xiu, Kresten Lindorff‐Larsen, Yong Wang   +4 more
wiley   +1 more source

Random Action of Compact Lie Groups and Minimax Estimation of a Mean Pattern [PDF]

, 2011
This paper considers the problem of estimating a mean pattern in the setting of Grenander's pattern theory. Shape variability in a dataset of curves or images is modeled by the random action of elements in a compact Lie group on an infinite dimensional ...
Gadat, Sébastien, Bigot, Jérémie, Christophe, Claire, Claire, Christophe   +3 more
core   +1 more source

AI‐Driven Cancer Multi‐Omics: A Review From the Data Pipeline Perspective

Advanced Intelligent Discovery, EarlyView.
The exponential growth of cancer multi‐omics data brings opportunities and challenges for precision oncology. This review systematically examines AI's role in addressing these challenges, covering generative models, integration architectures, Explainable AI for clinical trust, clinical applications, and key directions for clinical translation.
Shilong Liu, Shunxiang Li, Kun Qian
wiley   +1 more source

Testing of distributions, minimax optimality and extensions [PDF]

, 2021
The subject of this thesis is a minimax optimal study of statistical inference, with a focus on hypothesis testing. This will give us the opportunity of reviewing tools and ideas from the literature of estimation and testing of discrete and continuous
Lam, Joseph
core   +1 more source

Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions

Canadian Journal of Statistics, EarlyView.
Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni, Luca Merlo, Lea Petrella   +2 more
wiley   +1 more source

Torsion-free covers of solvable minimax groups [PDF]

, 2015
We prove that every finitely generated solvable minimax group can be realized as a quotient of a torsion-free solvable minimax group. This result has an application to the investigation of random walks on finitely generated solvable minimax groups.
Lorensen, Karl, Kropholler, Peter
core   +1 more source

Intensity estimation of non-homogeneous Poisson processes from shifted trajectories [PDF]

, 2013
In this paper, we consider the problem of estimating nonparametrically a mean pattern intensity λ from the observation of n independent and non-homogeneous Poisson processes N1,…,Nn on the interval [0,1].
Marteau, Clément, Gadat, Sébastien, Klein, Thierry, Bigot, Jérémie   +3 more
core   +1 more source

Differential item functioning detection across multiple groups

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Differential item functioning (DIF) can be investigated by estimating item response theory (IRT) parameters separately for different respondent groups, thus allowing for the detection of discrepancies in parameter estimates across groups. However, before comparing the estimates, it is necessary to convert them to a common metric due to the ...
Michela Battauz
wiley   +1 more source

Existence and multiplicity results for non-autonomous second-order Hamiltonian systems

Advances in Nonlinear Analysis
In this article, using the least action principle and minimax methods in critical point theory, some existence and multiplicity results for periodic solutions of second-order Hamiltonian systems are obtained.
Liu Chungen, Zhong Yuyou
doaj   +1 more source