Results 51 to 60 of about 466,308 (166)
On parameter identification in stochastic differential equations by penalized maximum likelihood
, 2014 In this paper we present nonparametric estimators for coefficients in stochastic differential equation if the data are described by independent, identically distributed random variables.
Dunker, Fabian, Hohage, Thorsten
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Dynamic density estimation with diffusive Dirichlet mixtures [PDF]
, 2016 We introduce a new class of nonparametric prior distributions on the space of continuously varying densities, induced by Dirichlet process mixtures which diffuse in time.
Mena, Ramsés H., Ruggiero, Matteo
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Developing Dynamic Network DEA Approach and its Combination with Interval Type-2 Fuzzy Sets Theory Case of Passenger Airports’ Performance Based on Sustainability Principles [PDF]
مدیریت تولید و عملیات, 2018 : Fuzzy DEA methods have been introduced to deal with the fuzziness of variables. Although, some of these variables are affected by uncertainty and also information granularity, the membership function of fuzzy set is certain and this contrasts with the ...
Laya Olfat +3 more
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Identification, Inference and Sensitivity Analysis for Causal Mediation Effects
, 2010 Causal mediation analysis is routinely conducted by applied researchers in a variety of disciplines. The goal of such an analysis is to investigate alternative causal mechanisms by examining the roles of intermediate variables that lie in the causal ...
Imai, Kosuke +2 more
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AxiomsWe aim to analyze the dynamics of multiple financial assets with variable volatility. Instead of a standard analysis based on the Black–Scholes model, we proceed with the multidimensional Volterra model, which allows us to treat volatility as a ...
Somayah Hussain Alkhaldi +4 more
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Frontiers in Neuroscience, 2018 Neuroimaging studies in children and adolescents with post-traumatic stress disorder (PTSD) have focused on abnormal structures and the functionality of a few individual brain regions.
Jian Xu +9 more
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Fast nonparametric near-maximum likelihood estimation of a mixing density
, 2017 Mixture models are regularly used in density estimation applications, but the problem of estimating the mixing distribution remains a challenge. Nonparametric maximum likelihood produce estimates of the mixing distribution that are discrete, and these ...
Chae, Minwoo +2 more
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The impact of neighborhood environment on the mental health: evidence from China
Frontiers in Public HealthIntroductionThe community environment is a significant social determinant affecting individual mental health.PurposeThis study explores the impact mechanisms and urban-rural heterogeneity in the relationship between socioeconomic status and individual ...
Kaiqi Lei, Jianke Yang, Xiwang Ke
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Linear and Quadratic Functionals of RandomHazard rates: an Asymptotic Analysis [PDF]
A popular Bayesian nonparametric approach to survival analysis consists in modeling hazard rates as kernel mixtures driven by a completely random measure.
Giovanni Peccati, Igor Prünster
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Dentistry JournalSmall-sized stainless steel hand files are conventionally employed in root canal treatment procedures for canal scouting and for glide path establishment, owing to their superior flexibility and proficiency in navigating confined spaces.
Abayomi Omokeji Baruwa +6 more
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