Results 1 to 10 of about 30,999 (254)

Phase II control charts for autocorrelated processes [PDF]

open access: yesQuality Technology & Quantitative Management, 2016
A large amount of SPC procedures are based on the assumption that the process subject to monitoring consists of independent observations. Chemical processes as well as many non-industrial processes exhibit autocorrelation, for which the above-mentioned control procedures are not suitable.
Triantafyllopoulos, K., Bersimis, S.
openaire   +2 more sources

Testing For Deterministic And Stochastic Cycles In Macroeconomic Time Series [PDF]

open access: yes, 2005
In this paper we use a statistical procedure which is appropriate to test for deterministic and stochastic (stationary and nonstationary) cycles in macroeconomic time series.
Caporale, GM, Gil-Alana, LA
core   +1 more source

Distributed Fusion Filtering in Networked Systems with Random Measurement Matrices and Correlated Noises

open access: yesDiscrete Dynamics in Nature and Society, 2015
The distributed fusion state estimation problem is addressed for sensor network systems with random state transition matrix and random measurement matrices, which provide a unified framework to consider some network-induced random phenomena.
Raquel Caballero-Águila   +2 more
doaj   +1 more source

Mean Reversion in the US Treasury Constant Maturity Rates [PDF]

open access: yes, 2007
The daily structure of the US Treasury Constant Maturity Rates is investigated in this paper by means of fractional integration techniques. Using a version of the tests of Robinson (1994) along with a model selection criterion based on diagnostic tests ...
Caporale, GM, Gil-Alana, LA
core  

Why Are Asset Returns Predictable? [PDF]

open access: yes
Starting from an information process governed by a geometric Brownian motion we show that asset returns are predictable if the elasticity of the pricing kernel is not constant.
Lüders, Erik
core  

How perilous are broad-scale correlations with environmental variables? [PDF]

open access: yes, 2020
Many studies correlate geographic variation of biotic variables (e.g., species ranges, species richness, etc.) with variation in environmental variables (climate, topography, history).
Boucher-Lalonde, Véronique   +2 more
core  

Dispersion of Magnetic Fields in Molecular Clouds. III [PDF]

open access: yes, 2011
We apply our technique on the dispersion of magnetic fields in molecular clouds to high spatial resolution Submillimeter Array polarization data obtained for Orion KL in OMC-1, IRAS 16293, and NGC 1333 IRAS 4A.
Brogan   +22 more
core   +3 more sources

Packet dropping characteristics in a queue with autocorrelated arrivals

open access: yesJournal of Communications Software and Systems, 2008
This paper provides a detailed description of the packet dropping process connected with the buffer overflows in a network node. Namely, we show the formulas for the most important loss characteristics, both in the transient and the stationary regime and
Andrzej Chydzinski   +2 more
doaj  

Recurrence Plots 25 years later -- gaining confidence in dynamical transitions

open access: yes, 2013
Recurrence plot based time series analysis is widely used to study changes and transitions in the dynamics of a system or temporal deviations from its overall dynamical regime.
Kurths, Jürgen   +2 more
core   +1 more source

Influence of Geographical Effects in Hedonic Pricing Models for Grass-Fed Cattle in Uruguay

open access: yesAgriculture, 2020
A series of non-spatial and spatial hedonic models of feeding and replacement cattle prices at video auctions in Uruguay (2002 to 2009) were specified with predictors measuring marketing conditions (e.g., steer price), cattle characteristics (e.g., breed)
Paul Harris   +3 more
doaj   +1 more source

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