Results 271 to 280 of about 808,768 (351)

Unraveling emergent network indeterminacy in complex ecosystems: A random matrix approach. [PDF]

Proc Natl Acad Sci U S A
Kawatsu K.
europepmc   +1 more source

Tensor Changepoint Detection and Eigenbootstrap

Journal of Time Series Analysis, EarlyView.
ABSTRACT Tensor data consisting of multivariate outcomes over the items and across the subjects with longitudinal and cross‐sectional dependence are considered. A completely distribution‐free and tweaking‐parameter‐free detection procedure for changepoints at different locations is designed, which does not require training data.
Michal Pešta, Barbora Peštová, Martin Romaňák   +2 more
wiley   +1 more source

Statistical Properties of Correlated Semiclassical Bands in Tight-Binding Small-World Networks. [PDF]

Entropy (Basel)
Almazova N, Tsironis GP, Kaxiras E.
europepmc   +1 more source

Estimation and Inference for Higher‐Order Stochastic Volatility Models With Leverage

Journal of Time Series Analysis, EarlyView.
ABSTRACT Statistical inference—estimation and testing—for stochastic volatility models is challenging and computationally expensive. This problem is compounded when leverage effects are allowed. We propose efficient, simple estimators for higher‐order stochastic volatility models with leverage [SVL(p)$$ (p) $$], based on a small number of moment ...
Md. Nazmul Ahsan, Jean‐Marie Dufour, Gabriel Rodriguez‐Rondon   +2 more
wiley   +1 more source

General relationship of local topologies, global dynamics, and bifurcation in cellular networks. [PDF]

NPJ Syst Biol Appl
Hu Q, Tang R, He X, Wang R.
europepmc   +1 more source

A Novel Test for the Presence of Local Explosive Dynamics

Journal of Time Series Analysis, EarlyView.
ABSTRACT In economics and finance, speculative bubbles take the form of locally explosive dynamics that eventually collapse. We propose a test for the presence of speculative bubbles in the context of mixed causal‐noncausal autoregressive processes.
F. Blasques, S. J. Koopman, G. Mingoli, S. Telg   +3 more
wiley   +1 more source

Generalized dynamics of cooperating bacteria

Massing JC, Gross T, Yeakel JD, Fahimipour AK.   +3 more
europepmc   +1 more source

Neural heterogeneity enhances reliable neural information processing: Local sensitivity and globally input-slaved transient dynamics. [PDF]

Sci Adv
Wu S, Huang H, Wang S, Chen G, Zhou C, Yang D.   +5 more
europepmc   +1 more source

No Mate, No Problem: Molecular Mechanisms Involved in Parthenogenesis in the Cosmopolitan Earthworm Aporrectodea trapezoides (Annelida, Clitellata)

Molecular Ecology, EarlyView.
ABSTRACT Approximately, 40% of earthworm species can reproduce by parthenogenesis. This is the case for the cosmopolitan species, Aporrectodea trapezoides, although sexual forms have been described sporadically. We analyse the genotypes and microbiomes of 30 individuals from four localities where both forms appear in order to understand the ...
Irene de Sosa, Marta Turon, Sergi Taboada, José Lorente‐Sorolla, Rosa Fernández, Natasha Tilikj, Alberto Piris, Marta Novo, Patricia Álvarez Campos, Ana Riesgo   +9 more
wiley   +1 more source

Nonlinear Topological Photonics: Capturing Nonlinear Dynamics and Optical Thermodynamics. [PDF]

ACS Photonics
Wong S, Cerjan A, Makris KG, Khajavikhan M, Christodoulides D, Oh SS.   +5 more
europepmc   +1 more source