Results 131 to 140 of about 1,700,696 (345)

The effects of seasonality and parasitism on diet and habitat selection in the common periwinkle

Oikos, EarlyView.
The common periwinkle Littorina littorea is an ecologically important grazer, known for its strong influence on algal communities and its role in structuring ecosystems. It serves as the first intermediate host for several trematode species in the Baltic Sea, especially for the fluke Cryptocotyle lingua.
Friederike Gronwald, Claudia Bommarito, Dakeishla M. Díaz‐Morales, Alessandro Manfrin, Cindy Martinez Reyes, Milen Nachev, Bernd Sures, Florian Weinberger   +7 more
wiley   +1 more source

Carbon emissions and sustainability in Covid-19's waves: evidence from a two-state dynamic Markov-switching regression (MSR) model. [PDF]

Ann Oper Res, 2023
Konstantakis KN, Michaelides PG, Michaelides PG, Xidonas P, Yfanti S.   +4 more
europepmc   +1 more source

Bayesian Methods in Nonlinear Time Series [PDF]

This paper reviews the analysis of the threshold autoregressive, smooth threshold autoregressive, and Markov switching autoregressive models from the Bayesian perspective.
Korenok Oleg
core  

Levy Approximation of Impulsive Recurrent Process with Semi-Markov Switching [PDF]

, 2009
In this paper, the weak convergence of impulsive recurrent process with semi-Markov switching in the scheme of Levy approximation is proved. Singular perturbation problem for the compensating operator of the extended Markov renewal process is used to ...
Koroliuk, V. S., Limnios, N., Samoilenko, I. V.   +2 more
core  

Markov switching multiple-equation tensor regressions

Journal of Multivariate Analysis
We propose a new flexible tensor model for multiple-equation regression that accounts for latent regime changes. The model allows for dynamic coefficients and multi-dimensional covariates that vary across equations. We assume the coefficients are driven by a common hidden Markov process that addresses structural breaks to enhance the model flexibility ...
Casarin, Roberto, Craiu, Radu V., Wang, Qing   +2 more
openaire   +2 more sources

Impact of Packaging and Recycling Systems on Material Recirculation: A Stage‐Decomposition Model

Packaging Technology and Science, EarlyView.
A system‐level view emerges from decomposing recycling into four stages (participation, collection, sorting and process yield), diagnosing constraints and targeting interventions. Cumulative equivalent uses (CEUs) quantify long‐term retention, revealing marginal improvements at high baselines generate disproportionately larger gains than low‐baseline ...
Diogo Figueirinhas, Daniel Hellström, Henrik Pålsson, Yulia Vakulenko   +3 more
wiley   +1 more source

A Markov Switching Approach in Assessing Oil Price and Stock Market Nexus in the Last Decade: The Impact of the COVID-19 Pandemic. [PDF]

Sage Open, 2023
Phoong SW, Mahi MA, Phoong SY.
europepmc   +1 more source

Fiscal Regime Shifts in Portugal [PDF]

We estimate changes in fiscal policy regimes in Portugal with a Markov Switching regression of fiscal policy rules for the period 1978-2007, using a new dataset of fiscal quarterly series.
António Afonso, Peter Claeys, Ricardo M. Sousa   +2 more
core  

An objective Bayesian method for including parameter uncertainty in ensemble model output statistics

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Conventional model output statistics and ensemble model output statistics methods for calibrating ensemble forecasts lead to severe underestimation of the probabilities of ensemble extremes (in blue). This is because they ignore statistical parameter uncertainty.
Stephen Jewson, Leonardo Olivetti, Gabriele Messori, Paul J. Northrop, Trevor Sweeting   +4 more
wiley   +1 more source

Regime Tracking in Markets with Markov Switching

Mathematics
The object of the investigation is a model of the incomplete financial market. It includes a bank deposit with a known interest rate and basic risky securities.
Andrey Borisov
doaj   +1 more source