Results 41 to 50 of about 96,433 (236)

ON SINGULAR STATIONARITY II (TIGHT STATIONARITY AND EXTENDERS-BASED METHODS) [PDF]

open access: yesThe Journal of Symbolic Logic, 2019
AbstractWe study the notion of tightly stationary sets which was introduced by Foreman and Magidor in [8]. We obtain two consistency results showing that certain sequences of regular cardinals${\langle {\kappa _n}\rangle _{n < \omega }}$can have the property that in some generic extension, every ground-model sequence of fixed-cofinality stationary ...
openaire   +2 more sources

Sequential monitoring for changes from stationarity to mild non-stationarity

open access: yesJournal of Econometrics, 2020
We develop and study sequential testing procedures a la Chu et al. (1996) for on-line detection of changes in a time series from stationarity to mild forms of non-stationarity.
Lajos Horváth   +3 more
semanticscholar   +1 more source

Cautious Gait during Navigational Tasks in People with Hemiparesis: An Observational Study

open access: yesSensors
Locomotor and balance disorders are major limitations for subjects with hemiparesis. The Timed Up and Go (TUG) test is a complex navigational task involving oriented walking and obstacle circumvention. We hypothesized that subjects with hemiparesis adopt
Albane Le Roy   +4 more
doaj   +1 more source

Cointegration and US Regional gasoline prices: Testing market efficiency from the stationarity of price proportions [PDF]

open access: yes, 2013
It is well known that oil price shocks are a major concern to the health of the global economy. Unstable oil prices have a significant negative impact on consumer confidence and business decision making.
Hunter, J, Tabaghdehi, SA
core   +6 more sources

Extreme 1-day rainfall distributions: Analysing change in the Western Cape

open access: yesSouth African Journal of Science, 2017
Severe floods in the Western Cape Province of South Africa have caused significant damage to property and infrastructure over the past decade (2003–2014).
Jan H. de Waal   +2 more
doaj   +1 more source

On singular stationarity I (mutual stationarity and ideal-based methods) [PDF]

open access: yesAdvances in Mathematics, 2019
We study several ideal-based constructions in the context of singular stationarity. By combining methods of strong ideals, supercompact embeddings, and Prikry-type posets, we obtain three consistency results concerning mutually stationary sets, and answer a question of Foreman and Magidor concerning stationary sequences on the first uncountable ...
openaire   +2 more sources

On a Class of Z+-Valued Autoregressive Moving Average (ARMA) Processes

open access: yesRevstat Statistical Journal, 2008
A convolution semigroup of probability generating functions and its related operator ⊙F are used to construct a class of stationary Z+-valued autoregressive moving average (ARMA) processes.
Emad-Eldin A. A. Aly , Nadjib Bouzar
doaj   +1 more source

On a Class of Time Series Model with Double Lindley Distribution as Marginals

open access: yesStatistica, 2022
An autoregressive process of order one with double Lindley distribution as marginal is introduced. A mixture distribution is obtained for the innovation process. Analytical properties of the process are discussed.
Kunnathully Unnikrishnan Nitha   +1 more
doaj   +1 more source

Stationarity and quasi-stationarity for birth-death processes [PDF]

open access: yesSCIENTIA SINICA Mathematica, 2019
Professor Zikun Wang has made pioneering research on the construction theory of birth-death processes, which now has many applications.We review the quasi-stationary distribution for birth-death processes with four types of infinity boundary. In the cases of exit/regular boundaries,we extend the quasi-stationary distributions to the minimal processes ...
openaire   +1 more source

Fault Detection in Industrial Equipment through Analysis of Time Series Stationarity

open access: yesAlgorithms
Predictive maintenance has gained importance due to industrialization. Harnessing advanced technologies like sensors and data analytics enables proactive interventions, preventing unplanned downtime, reducing costs, and enhancing workplace safety.
Dinis Falcão   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy