نتایج جستجو برای: var modeling

تعداد نتایج: 414772  

2014
Lee Hong Tnah Chai Ting Lee Soon Leong Lee Chin Hong Ng Kevin Kit Siong Ng

UNLABELLED PREMISE OF THE STUDY The exploitation of Labisia pumila for commercial demand is gradually increasing. It is therefore important that conservation is prioritized to ensure sustainable utilization. We developed microsatellites for L. pumila var. alata and evaluated their polymorphism across var. alata, var. pumila, and var. lanceolata. • METHODS AND RESULTS Ten polymorphic micros...

Journal: :Jurnal Axioma 2023

Arbitrage Pricing Theory (APT) is a pricing model that can be used to determine the expected return of security. It assumes there more than one factor affecting return. The risk APT part sensitivity macroeconomic factors identification affect security returns most important stages modeling. This because does not specify how on One method identify Vector Autoregressive (VAR). An overview relatio...

2011
TOMASZ ROLSKI AGATA TOMANEK

Suppose that N is a Z+-valued random variable and that X,X1, X2, . . . is a sequence of independent and identically distributed Z+ random variables independent of N . In this paper we are interested in properties of the conditional variable Nk D =(N | ∑Nj=1 Xj = k). In particular, we want to know the asymptotic behavior of the conditional mean ENk or the conditional variance var Nk as k → ∞. We...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2003
Audrey A S G Lonni Ieda S Scarminio Lucas M C Silva Dalva T Ferreira

Phytochemical investigation of the aerial parts of three Baccharis species (Asteraceae family) was performed using HPLC and chemometric methods, with the objective of distinguishing between three morphologically very similar species: Baccharis genistelloides Persoon var. trimera (Less.) DC, B. milleflora (Less.) DC and B. articulata (Lam.) Persoon. With the help of Principal Component Analysis ...

2000
L. M. Hajagos G. R. Bérubé

Previous panel papers have described testing for NERC and WSCC compliance [A] and testing and tuning of governors for compliance and island-mode performance [B]. This paper presents experience with testing of gas turbine plants for NERC and WSCC compliance. Testing has been performed on older analog-electronic and new digital-electronic units. The level of detail used in modeling and model avai...

1995
Giuseppe De Giacomo Maurizio Lenzerini

Based on the research done in the last decade attempts have been made to propose descrip tion logics as unifying formalisms for the var ious class based representation languages used in di erent areas These attempts have made apparent that sound complete and decidable description logics still su er from several lim itations regarding modeling classes of aggre gate objects expressing general inc...

2012
Jouchi Nakajima

Multivariate stochastic volatility models with skew distributions are proposed. Exploiting Cholesky stochastic volatility modeling, univariate stochastic volatility processes with leverage effect and generalized hyperbolic skew t-distributions are embedded to multivariate analysis with time-varying correlations. Bayesian prior works allow this approach to provide parsimonious skew structure and...

2009
Wo-Chiang Lee

This paper focus on modeling and estimating tail parameters of commercial fire loss severity. Using extreme value theory, we centralized on the generalized Pareto distribution (GPD) and compare with standard parametric modeling based on Lognormal, Exponential, Gamma and Weibull distributions. In empirical study, we determine the thresholds of GPD through mean excess plot and Hill plot. Kolmogor...

1998
John H. Rogers Michael Sharkey

Many explanations of the stylized facts concerning real exchange rate movements focus on monetary shocks, but it is often found empirically that monetary shocks are unimportant. I provide evidence that is contrary to this empirical finding. Using over 100 years of data, I estimate the contribution of various shocks to explaining variation in the real pound-dollar exchange rate. Monetary shocks ...

Journal: :Journal of clinical microbiology 1999
T Kasuga J W Taylor T J White

The phylogeny of 46 geographically diverse Histoplasma capsulatum isolates representing the three varieties capsulatum, duboisii, and farciminosum was evaluated using partial DNA sequences of four protein coding genes. Parsimony and distance analysis of the separate genes were generally congruent and analysis of the combined data identified six clades: (i) class 1 North American H. capsulatum v...

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