Results 41 to 50 of about 2,383,589 (344)
Predictive Value of Odor Identification for Incident Dementia: The Shanghai Aging Study
Frontiers in Aging Neuroscience, 2020 ObjectiveThis study aimed to evaluate the value of odors in the olfactory identification (OI) test and other known risk factors for predicting incident dementia in the prospective Shanghai Aging Study.MethodsAt baseline, OI was assessed using the Sniffin’
Ding Ding +10 more
doaj +1 more source
Assessing the freshwater distribution of yellow eel
Knowledge and Management of Aquatic Ecosystems, 2009 In the global context of the decline in wild species, modeling the distribution of populations is a crucial aspect of ecological management. This can be a major challenge, especially for species, such as the European eel, that have complex life cycles ...
Lasne É., Laffaille P.
doaj +1 more source
Neo-logistic model for the growth of bacteria [PDF]
, 2017 We propose a neo-logistic model that can describe bacterial growth data precisely. This model is not derived by modifying the logistic model formally, but by incorporating the synthesis of inducible enzymes into the logistic model indirectly. Therefore, the meaning of the parameters of the neo-logistic model becomes physically clear.
arxiv +1 more source
Mathematical and Computer Modelling, 1988 Abstract A class of models indexed by two shape parameters is introduced, both to extend the scope of the standard logistic model to asymmetric probability curves and improve the fit in the noncentral probability regions. One-parameter subclasses can be used to examine symmetric or asymmetric deviations from the logistic model.
openaire +3 more sources
Technological and Economic Development of Economy, 2008 In this paper a mathematical model for obtaining probability distribution of the knowledge testing results is proposed. Differences and similarities of this model and Item Response Theory (IRT) logistic model are discussed.
Aleksandras Krylovas, Natalja Kosareva
doaj +1 more source
Nonlinear Autoregressive Approach to Estimating Logistic Model Parameters of Urban Fractal Dimension Curves [PDF]
arXiv, 2023 A time series of fractal dimension values of urban form can form a fractal dimension curve and reflects urban growth. In many cases, the fractal dimension curves of cities can be modeled with logistic function, which in turn can be used to make prediction analysis and stage division studies of urban evolution.
arxiv
On the correspondence from Bayesian log-linear modelling to logistic regression modelling with $g$-priors [PDF]
, 2017 Consider a set of categorical variables where at least one of them is binary. The log-linear model that describes the counts in the resulting contingency table implies a specific logistic regression model, with the binary variable as the outcome.
Papathomas, Michail
core +2 more sources
Dynamics of spatial logistic model: finite systems
, 2014 The spatial logistic model is a system of point entities (particles) in $\mathbb{R}^d$ which reproduce themselves at distant points (dispersal) and die, also due to competition.
Kozitsky, Yuri
core +1 more source
Developing a discrimination rule between breast cancer patients and controls using proteomics mass spectrometric data: A three-step approach [PDF]
, 2008 To discriminate between breast cancer patients and controls, we used a three-step approach to obtain our decision rule. First, we ranked the mass/charge values using random forests, because it generates importance indices that take possible interactions ...
Heidema, A.G., Nagelkerke, N.
core +3 more sources
Scientia Agricola, 2011 Growth functions with upper horizontal asymptote do not have a maximum point, but we frequently question from which point growth can be considered practically constant, that is, from which point the curve is sufficiently close to its asymptote, so that ...
Martha Maria Mischan +2 more
doaj +1 more source