Results 91 to 100 of about 30,999 (254)

Fusion Estimation from Multisensor Observations with Multiplicative Noises and Correlated Random Delays in Transmission

open access: yesMathematics, 2017
In this paper, the information fusion estimation problem is investigated for a class of multisensor linear systems affected by different kinds of stochastic uncertainties, using both the distributed and the centralized fusion methodologies. It is assumed
Raquel Caballero-Águila   +2 more
doaj   +1 more source

Burrow Persistence and Spatial Distribution of Federally and State‐Protected Gopher Tortoise (Gopherus polyphemus) Populations in Southwest Alabama

open access: yesAnimal Conservation, EarlyView.
The gopher tortoise (Gopherus polyphemus), a keystone species and ecosystem engineer, has declined by ~80% over the past century due to primarily habitat loss. In a 28‐year resurvey of federally protected Mobile County and state‐protected Baldwin County, we found tortoise populations persisted at ~59% and ~31% of sites, respectively, with significant ...
Robin B. Lloyd Jr.   +4 more
wiley   +1 more source

Accounting for skill in trend, variability, and autocorrelation facilitates better multi-model projections: Application to the AMOC and temperature time series.

open access: yesPLoS ONE, 2019
We present a novel quasi-Bayesian method to weight multiple dynamical models by their skill at capturing both potentially non-linear trends and first-order autocorrelated variability of the underlying process, and to make weighted probabilistic ...
Roman Olson   +3 more
doaj   +1 more source

Autocorrelation Functions for Point‐Process Time Series

open access: yesJournal of Time Series Analysis
ABSTRACTThis article introduces autocorrelograms for time series of point processes. Such time series usually arise when a longer temporal or spatio‐temporal point process is sliced into smaller time units; for example, when an annual process is sliced into 365 daily replications.
openaire   +2 more sources

Beyond Sporting Talent: Other Determinants of Football Clubs’ Wage Bills

open access: yesBulletin of Economic Research, EarlyView.
ABSTRACT This article delves into the understanding of how football clubs determine wage bills to compensate talent. Using data from first‐division teams in elite European leagues, we estimate wage models based on indicators of sporting performance, “Elo ratings” as a proxy for clubs’ historical achievements and brand strength, and “media visibility ...
Alice Aguiar‐Noury   +1 more
wiley   +1 more source

Structured machine learning modeling to support conservation of deep‐sea benthic biodiversity

open access: yesConservation Biology, EarlyView.
Abstract Biodiversity monitoring programs need to deliver accurate, timely, and actionable predictions. To establish a predictive monitoring program for deep‐sea benthos of the Santos Basin, Brazil, we developed a two‐stage structured model that allowed comparison of biodiversity predictions obtained from environmental simulations (2M‐Sim).
Gustavo Fonseca   +23 more
wiley   +1 more source

Limited Information Bayesian Analysis of a Simultaneous Equation with an Autocorrelated Error Term and its Application to the U.S. Gasoline Market [PDF]

open access: yes
Using Markov Chain Monte Carlo algorithms within the limited information Bayesian framework, we estimate the parameters of the structural equation of interest and test weak exogeneity in a simultaneous equation model with white noise as well as ...
Stanislav Radchenko
core  

A semi-Markov model with memory for price changes

open access: yes, 2011
We study the high frequency price dynamics of traded stocks by a model of returns using a semi-Markov approach. More precisely we assume that the intraday returns are described by a discrete time homogeneous semi-Markov which depends also on a memory ...
D’Amico G Petroni F   +3 more
core   +1 more source

Afforestation of tropical savannas has mixed consequences for bird communities

open access: yesConservation Science and Practice, EarlyView.
Moving beyond the prevailing binary perception of savanna afforestation being either ‘good’ or ‘bad’ for native biodiversity, our data suggests that plantations on the rainfall extremes should be viewed as important supplementary habitats for biodiversity.
Siddhant Mhetre   +5 more
wiley   +1 more source

Speculation in the United Kingdom, 1785‒2019

open access: yesThe Economic History Review, EarlyView.
Abstract Speculation has long been thought to have significant economic effects, but it is difficult to measure, making it challenging to examine these effects empirically. In this paper we measure speculation in the United Kingdom since 1785 by using business and financial reporting in The Times newspaper.
William Quinn   +2 more
wiley   +1 more source

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