Results 11 to 20 of about 205,970 (321)

Forecast of COVID-19 progress considering the seasonal fluctuations [PDF]

open access: yesHealth Economics and Management Review, 2021
This study aims to analyze the course of the COVID-19 disease and forecast its progress. Systematization of scientific background concerning the issues under investigation indicated the snowballing growth of scientific publications devoted to COVID-19 ...
Mariya Kascha   +2 more
doaj   +1 more source

The Taylor Property in Bilinear Models

open access: yesRevstat Statistical Journal, 2015
The aim of this paper is to discuss the presence of the Taylor property in the class of simple bilinear models. Considering strictly and weakly stationary models, we deduce autocorrelations of the process and of its square and analyze the presence of ...
E. Gonçalves   +2 more
doaj   +1 more source

Hedging the Drift: Learning to Optimize under Non-Stationarity [PDF]

open access: yesManagement Sciences, 2019
We introduce data-driven decision-making algorithms that achieve state-of-the-art dynamic regret bounds for a collection of nonstationary stochastic bandit settings.
Wang Chi Cheung   +2 more
semanticscholar   +1 more source

Application of the k-Prototype Clustering Approach for the Definition of Geostatistical Estimation Domains

open access: yesMathematics, 2023
The definition of geostatistical domains is a stage in the estimation of mineral resources, in which a sample resulting from a mining exploration process is divided into zones that show homogeneity or minimal variation in the main element of interest or ...
Heber Hernández   +3 more
doaj   +1 more source

Is There A Stable Long-run Relationship Between Unemployment And Productivity?

open access: yesComparative Economic Research, 2015
This paper assesses whether productivity and unemployment have a stable long-run relationship. We explore a panel of 19 OECD countries between 1970 and 2012 and rely on recently developed time series econometric methods.
João Tovar Jalles
doaj   +1 more source

Quantifying Non-Stationarity with Information Theory

open access: yesEntropy, 2021
We introduce an index based on information theory to quantify the stationarity of a stochastic process. The index compares on the one hand the information contained in the increment at the time scale τ of the process at time t with, on the other hand ...
Carlos Granero-Belinchón   +2 more
doaj   +1 more source

Time Series Analysis of Nigeria External (Foreign) Reserves

open access: yesAfrican Scientific Reports, 2023
Economy of a country can absorb shock and as well boost confidence through external reserves. Hence, external reserves play an important role to the extent that it helps in stabilizing the country’s economy.
Taiwo Joel Adejumo   +4 more
doaj   +1 more source

Stationarity, non-stationarity and early warning signals in economic networks [PDF]

open access: yes, 2014
Economic integration, globalization and financial crises represent examples of processes whose understanding requires the analysis of the underlying network structure.
Garlaschelli, Diego, Squartini, Tiziano
core   +2 more sources

PEMODELAN JUMLAH KASUS DEMAM BERDARAH DENGUE DENGAN MENGGUNAKAN MODEL AUTOREGRESSIVE DISTRIBUTED LAG

open access: yesJurnal Lebesgue, 2023
This study aims to model dengue hemorrhagic fever (DHF) cases with an autoregressive distributed lag (ARDL) model to investigate significant predictor variables in Bojonegoro Regency.
Denny Nurdiansyah, Agus Sulistiawan
doaj   +1 more source

A statistical test of independence in choice data with small samples

open access: yesJudgment and Decision Making, 2012
This paper develops tests of independence and stationarity in choice data collected with small samples. The method builds on the approach of Smith and Batchelder (2008).
Michael H. Birnbaum
doaj   +1 more source

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