Results 91 to 100 of about 262,287 (308)

Stochastic Frontier Models with Dependent Errors based on Normal and Exponential Margins || Modelos de frontera estocástica con errores dependientes basados en márgenes normal y exponencial

open access: yesRevista de Métodos Cuantitativos para la Economía y la Empresa, 2017
Following the recent work of Gómez-Déniz and Pérez-Rodríguez (2014), this paper extends the results obtained there to the normal-exponential distribution with dependence.
Gómez-Déniz, Emilio   +1 more
doaj  

Distributions conditioned on extrapolated events via copula and extreme value theory

open access: yesMethodsX
In an interaction between road users, the proximity and speed are two interdependent dimensions which can be captured by a type of multivariate distribution called Copula. Copula requires all marginal distribution functions to be known.
Zhankun Chen   +2 more
doaj   +1 more source

A Kernel Method for the Optimization of the Margin Distribution [PDF]

open access: yes, 2008
Recent results in theoretical machine learning seem to suggest that nice properties of the margin distribution over a training set turns out in a good performance of a classifier. The same principle has been already used in SVM and other kernel based methods as the associated optimization problems try to maximize the minimum of these margins.
AIOLLI, FABIO   +2 more
openaire   +1 more source

Risk Prediction Models for Recurrence After Curative Treatment of Early‐Stage or Locally Advanced Lung Cancer: A Systematic Review

open access: yesAging and Cancer, EarlyView.
This systematic review synthesizes prognostic models for survival and recurrence in resected non‐small cell lung cancer. While many models demonstrate moderate to good discrimination, few are externally validated and reporting quality is variable, limiting clinical applicability and highlighting the need for robust, transparent model development ...
Evangeline Samuel   +4 more
wiley   +1 more source

Joint distribution and marginal distribution methods for checking assumptions of generalized linear model

open access: yes, 2019
In this article, we consider the model diagnostic plot and test of the generalized linear model. There exist several commonly used plotting methods and tests for checking the regression model assumptions.
Qiqing Yu (7270472)   +1 more
core   +1 more source

Environment identification based memory scheme for estimation of distribution algorithms in dynamic environments [PDF]

open access: yes, 2011
Copyright @ Springer-Verlag 2010.In estimation of distribution algorithms (EDAs), the joint probability distribution of high-performance solutions is presented by a probability model.
Yang, S   +3 more
core   +1 more source

Efficient Robbins–Monro procedure for multivariate binary data

open access: yesStatistical Theory and Related Fields, 2018
This paper considers the problem of jointly estimating marginal quantiles of a multivariate distribution. A sufficient condition for an estimator that converges in probability under a multivariate version of Robbins–Monro procedure is provided.
Cui Xiong, Jin Xu
doaj   +1 more source

A seasonal Integer-Valued AR(1) model with delaporte marginal distribution [PDF]

open access: yesمدل‌سازی پیشرفته ریاضی
Real-count data time series often show the phenomenon of over-dispersion. In this paper, we introduce the first-order integer-valued autoregressive process with seasonal structure.
Maryam Shalbaf   +2 more
doaj   +1 more source

Profound Leadership Strategies: Transcending the Leadership Crisis in the Age of Artificial Intelligence

open access: yesNew Directions for Adult and Continuing Education, EarlyView.
ABSTRACT This article examines the evolving role of organizational leadership amidst the rapid advancements in artificial intelligence (AI). It explores a broadly experienced and documented crisis in leadership, due in part to the disruptive nature of AI and emerging technology.
Rachel Wlodarsky, Davin Carr Chellman
wiley   +1 more source

Lower bounds on the run time of the univariate marginal distribution algorithm on OneMax [PDF]

open access: yes, 2017
The Univariate Marginal Distribution Algorithm (UMDA), a popular estimation of distribution algorithm, is studied from a run time perspective. On the classical OneMax benchmark function, a lower bound of Ω(μ√n + n log n), where μ is the population size ...
Witt, Carsten   +3 more
core   +1 more source

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