نتایج جستجو برای: variable

تعداد نتایج: 259105  

Journal: :Astronomische Nachrichten 1881

Journal: :IEICE ESS Fundamentals Review 2016

Journal: :Graefe's Archive for Clinical and Experimental Ophthalmology 2016

Negotiations among nations on policies to promote international economic integration have widened in recent years to cover new issues; for example, foreign direct investment rules, policies to promote competition, the international movement of labor, the environment and monetary union. In these negotiations, a consensus among the parties negotiating is usually lacking and many of these negotiat...

Double sampling plan is an examination with a certain parameter, so it cannot decide about manufactured products whose portion parameter ( ) is not certain. The main goal of this survey is to introduce double variable plan when  is indefinite to examine manufacturing products when concerned characteristics are normally distributed. Plan parameters are achieved by an optimization manner. Sum of ...

2010
Hei Chan Manabu Kuroki

In this paper, we present an extended set of graphical criteria for the identification of direct causal effects in linear Structural Equation Models (SEMs). Previous methods of graphical identification of direct causal effects in linear SEMs include methods such as the single-door criterion, the instrumental variable and the IV-pair, and the accessory set. However, there remain graphical models...

Journal: :CoRR 2016
Xuhui Zhang Kevin B. Korb Ann E. Nicholson Steven Mascaro

The causal discovery of Bayesian networks is an active and important research area, and it is based upon searching the space of causal models for those which can best explain a pattern of probabilistic dependencies shown in the data. However, some of those dependencies are generated by causal structures involving variables which have not been measured, i.e., latent variables. Some such patterns...

2013
Sinead Williamson Steve N. MacEachern Eric P. Xing

Distributions over matrices with exchangeable rows and infinitely many columns are useful in constructing nonparametric latent variable models. However, the distribution implied by such models over the number of features exhibited by each data point may be poorly-suited for many modeling tasks. In this paper, we propose a class of exchangeable nonparametric priors obtained by restricting the do...

2015

• State-F: Forward Outliers p(dx|Zx,mx = 1) = Uf (dx|Zx) = Uf · 1[dtxZx]. For the purpose to combine all the three states into a united model and describe the overall likelihood that the input depth samples fit the current static structure, we use a mixture model similar to the Gaussian Mixture Model [1]. Together with ...

2014
Kelvin Chow Bruce S Spottiswoode Joseph J Pagano Richard B Thompson

Background The SAturation-recovery single-SHot Acquisition (SASHA) T1 mapping sequence has excellent accuracy independent of T1, T2, heart rate, and flip angle [1], which are known dependencies of the more commonly used MOdified Look-Locker Inversion-recovery (MOLLI) sequence. However, SASHA has a greater T1 variability (poorer precision) compared to MOLLI. A two-parameter fit, with assumed ide...

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