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Prior Design for Dependent Dirichlet Processes: An Application to Marathon Modeling. [PDF]

open access: goldPLoS ONE, 2016
This paper presents a novel application of Bayesian nonparametrics (BNP) for marathon data modeling. We make use of two well-known BNP priors, the single-p dependent Dirichlet process and the hierarchical Dirichlet process, in order to address two ...
Melanie F Pradier   +2 more
doaj   +8 more sources

State-dependent Hawkes processes and their application to limit order book modelling [PDF]

open access: hybridQuantitative Finance, 2021
We study statistical aspects of state-dependent Hawkes processes, which are an extension of Hawkes processes where a self- and cross-exciting counting process and a state process are fully coupled, interacting with each other. The excitation kernel of the counting process depends on the state process that, reciprocally, switches state when there is an ...
Maxime Morariu-Patrichi   +1 more
openalex   +7 more sources

Cutting Edge PBPK Models and Analyses: Providing the Basis for Future Modeling Efforts and Bridges to Emerging Toxicology Paradigms [PDF]

open access: yesJournal of Toxicology, 2012
Physiologically based Pharmacokinetic (PBPK) models are used for predictions of internal or target dose from environmental and pharmacologic chemical exposures.
Jane C. Caldwell   +2 more
doaj   +2 more sources

A decision dependent stochastic process model for repairable systems with applications

open access: goldOperations Research Perspectives, 2015
AbstractManagement decisions regarding maintenance protocols critically hinge on the underlying probability distribution of the time between failures in most repairable systems. Replacement of the system with a new one resets the system age to zero, whereas a repair does not alter the system age but may shift the parameters of the failure-time ...
Paul F. Zantek   +3 more
openalex   +4 more sources

Coupled physical/biogeochemical modeling including O 2 -dependent processes in the Eastern Boundary Upwelling Systems: application in the Benguela [PDF]

open access: goldBiogeosciences, 2013
Abstract. The Eastern Boundary Upwelling Systems (EBUS) contribute to one fifth of the global catches in the ocean. Often associated with Oxygen Minimum Zones (OMZs), EBUS represent key regions for the oceanic nitrogen (N) cycle. Important bioavailable N loss due to denitrification and anammox processes as well as greenhouse gas emissions (e.g, N2O ...
Elodie Gutknecht   +11 more
openalex   +12 more sources

Modeling dose-dependent neural processing responses using mixed effects spline models: With application to a PET study of ethanol [PDF]

open access: greenNeuroImage, 2007
For functional neuroimaging studies that involve experimental stimuli measuring dose levels, e.g. of an anesthetic agent, typical statistical techniques include correlation analysis, analysis of variance or polynomial regression models. These standard approaches have limitations: correlation analysis only provides a crude estimate of the linear ...
Ying Guo, F. DuBois Bowman
openalex   +3 more sources

Application of EC, ECE, and ECE-ECE Models with Potential Dependent Transfer Coefficient to Selected Electrode Processes [PDF]

open access: bronzeJournal of The Electrochemical Society, 2007
The electrochemical-chemical (EC), electrochemical, chemical, electrochemical (ECE), and electrochemical, chemical, electrochemical-electrochemical, chemical, electrochemical (ECE-ECE) models with and without an included α variability were applied to the reduction of 2-methyl-2-nitropropane, benzenesulfonyl fluoride, and p-toluenesulfonyl fluoride. The
Przemysław T. Sanecki, Piotr M. Skitał
openalex   +2 more sources

A Bayesian Vector Autoregressive Model with Nonignorable Missingness in Dependent Variables and Covariates: Development, Evaluation, and Application to Family Processes [PDF]

open access: goldStructural Equation Modeling: A Multidisciplinary Journal, 2019
Intensive longitudinal designs involving repeated assessments of constructs often face the problems of nonignorable attrition and selected omission of responses on particular occasions. However, time series models, such as vector autoregressive (VAR) models, are often fit to these data without consideration of nonignorable missingness.
Linying Ji   +5 more
openalex   +4 more sources

Nonlinear Models with Strongly Dependent Processes and Applications to Forward Premia and Real Exchange Rates [PDF]

open access: green, 2006
This paper considers estimation and inference in some general non linear time series models which are embedded in a strongly dependent, long memory process. Some new results are provided on the properties of a time domain MLE for these models. The paper also includes a detailed simulation study which compares the time domain MLE with a two step ...
Richard T. Baillie, George Kapetanios
openalex   +2 more sources

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