Results 11 to 20 of about 4,986,787 (248)
Modeling modeling modeling [PDF]
Model-driven engineering and model-based approaches have permeated all branches of software engineering to the point that it seems that we are using models, as Molière's Monsieur Jourdain was using prose, without knowing it. At the heart of modeling, there is a relation that we establish to represent something by something else. In this paper we review
Muller, Pierre-Alain +3 more
openaire +2 more sources
Modeling Model Uncertainty [PDF]
Recently there has been a great deal of interest in studying monetary policy under model uncertainty. We develop new methods to analyze different sources of uncertainty in one coherent structure, which is useful for policy decisions. We show how to estimate the size of the uncertainty based on time series data, and how to incorporate this uncertainty ...
Onatski, Alexei, Williams, Noah
openaire +5 more sources
Models are tools; they need to fit both the hand and the task. Presence or absence of a feature such as a pacemaker or a cascade is not in itself good. Or bad. Criteria for model evaluation involve benefit‐cost ratios, with the numerator a function of the range of phenomena explained, goodness of fit, consistency with other nearby models, and ...
openaire +2 more sources
Among model comprehension tools, model slicers are tools that extract a subset from a model, for a specific purpose. Model slicers are tools that let modelers rapidly gather relevant knowledge from large models. However, existing slicers are dedicated to one modeling language. This is an issue when we observe that new domain specific modeling languages
Blouin, Arnaud +3 more
openaire +2 more sources
Independent perturbations for physics parametrization tendencies in a convection-permitting ensemble (pSPPT) [PDF]
A modification of the widely used SPPT (Stochastically Perturbed Parametrisation Tendencies) scheme is proposed and tested in a Convection-permitting – Limited Area Ensemble Forecasting system (C-LAEF) developed at ZAMG (Zentralanstalt für Meteorologie ...
C. Wastl +3 more
doaj +1 more source
Following the ideas of L.N.Gumilev, we introduce the mathematical model of ethnogenesis which describes the dynamics of subgroups in the developing polity in terms of ordinary differential equations. The bust dynamics associated with the rise and fall of civilisations is modelled as an excitation process, which is the non-linear phenomenon, well known ...
Piunovskiy, Alexey, Vasiev, Bakhtier
openaire +3 more sources
Widely used as a flame retardant, 2,2′4,4′-tetrabromodiphenyl ether (BDE-47) is a persistent environmental pollutant with toxicological effects, including hepatotoxicity, neurotoxicity, reproductive toxicity, and endocrine disruption.
Rong-Ping Liu +8 more
doaj +1 more source
Modeling has actively tried to take the human out of the loop, originally for objectivity and recently also for automation. We argue that an unnecessary side effect has been that modeling workflows and machine learning pipelines have become restricted to only well-specified problems.
Mustafa Mert Çelikok +3 more
openaire +5 more sources
Lymphocryptovirus-dependent occurrence of lymphoma in SIV-infected rhesus macaques with particular consideration to two uncommon cases of non-Hodgkin's lymphoma [PDF]
Despite combination antiretroviral therapy, high-grade malignant non-Hodgkin's lymphoma (NHL) is still one of the most frequently acquired immunodeficiency syndrome (AIDS)-defining disorders in the end stage of infection with human immunodeficiency virus
A. Klippert +8 more
doaj +1 more source
Business Models as Models [PDF]
Drawing on research undertaken in the history and philosophy of science, with particular reference to the extensive literature which discusses the use of models in biology and economics, we explore the question ‘Are Business Models useful?’ We point out that they act as various forms of model: to provide means to describe and classify businesses; to ...
Baden-Fuller, C., Morgan, M.S.
openaire +4 more sources

