Results 121 to 130 of about 25,752 (301)

TESTING FOR WEEKLY SEASONAL UNIT ROOTS IN DAILY ELECTRICITY DEMAND: EVIDENCE FROM DEREGULATED MARKETS [PDF]

open access: yes
This paper analyses the nature of the weekly seasonal component in daily observations for the electricity demand series from several deregulated markets.
Antonio Rubia
core  

Seasonality in Revisions of Macroeconomic Data [PDF]

open access: yes, 2010
We analyze the revision history of quarterly and monthly (seasonally unadjusted) macroeconomic variables for the Netherlands, Ireland, Luxemburg and the United States, where we focus on the degree of deterministic seasonality in these revisions.
Franses, Ph.H.B.F. (Philip Hans)   +1 more
core  

A Review of Human–AI Synergy in Smart Energy Management Concepts, Functions, Applications, and Future Frontiers

open access: yesEnergy Internet, EarlyView.
ABSTRACT Smart energy management systems (EMS) are entering a phase of rapid transformation. Artificial intelligence (AI)—including machine learning (ML), deep learning (DL), and reinforcement learning (RL)—has become the computational backbone for real‐time forecasting, scheduling, and control of renewable‐rich power systems.
Sihai An   +5 more
wiley   +1 more source

Modelling electricity prices with forward looking capacity constraints. [PDF]

open access: yes
We present a spot price model for wholesale electricity prices which incorporates forward looking information that is available to all market players.
Cartea, Álvaro   +2 more
core  

Properties of two U.S. inflation measures (1985-2005) [PDF]

open access: yes, 2006
Analyses are presented of 84 quarterly observations 1/85-4/05 on two U.S. index numbers of nominal prices often employed to measure inflation. Analyses are designed to answer two key questions of interest to macroeconomists. Is inflation stationary (I(0))
Vicente Martínez, Eva
core   +1 more source

Demographic buffering in natural populations: A multi‐level perspective

open access: yesJournal of Animal Ecology, EarlyView.
We introduce a multi‐level framework that unites stochastic elasticities with nonlinear selection to test demographic buffering. Applying it across mammals reveals a key insight: ecological robustness to variability often decouples from evolutionary constraint, reshaping how we understand resilience under environmental stochasticity.
Gabriel Silva Santos   +4 more
wiley   +1 more source

Modelling Seasonality An Extension of the HEGY Approach in the Presence of Two Structural Breaks [PDF]

open access: yes
In this paper the HEGY testing procedure (Hylleberg et al. 1990) of analyzing seasonal unit roots is tried to be re-examined by allowing for seasonal mean shifts with exogenous break points. Using some Monte Carlo experiments the distribution of the HEGY
Ozlem Tasseven
core  

On traits matching and the modular organization of food web and occurrence networks

open access: yesJournal of Animal Ecology, EarlyView.
What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Dalmiro Borzone Mas   +5 more
wiley   +1 more source

Eco‐evolutionary dynamics of partially migratory metapopulations in spatially and seasonally varying environments

open access: yesJournal of Animal Ecology, EarlyView.
Partial seasonal migration is rarely considered in a metapopulation context. Here, Haaland et al. use an eco‐evolutionary model revealing how partially migratory metapopulations may arise and be maintained, and how seasonal migrants may cause effects of local extreme climatic events to percolate through metapopulations across diverging temporal and ...
Thomas R. Haaland   +7 more
wiley   +1 more source

Modelling and seasonal forecasting of monthly hotel nights in Denmark [PDF]

open access: yes
The paper examines the monthly forecasting performance of several models of hotel demand in Denmark by nationality. Statistics are covering a period of more than 30 years, and special attention is devoted to the role of seasonality. Deterministic as well
Sørensen, Nils Karl
core  

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