Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Caiya Zhang"'
Publikováno v:
Communications in Statistics - Simulation and Computation. 50:1025-1038
We study a class of frailty Cox models with measurement error in covariates for right censored clustered data. Based on the corrected profile likelihood and Bayes estimation, we construct estimator...
Publikováno v:
Sustainability; Volume 14; Issue 15; Pages: 9769
With the increasing development gap, how to measure global equity in the perspective of sustainability has become an essential issue nowadays. To examine the intra-generational equity from the space dimension and the inter-generational equity from th
Publikováno v:
Econometric Theory. 35:943-977
This article investigates the statistical inference problem of whether a measurement equation is self-consistent in the logarithmic realized GARCH model (log-RealGARCH). First, we provide the sufficient and necessary conditions for the strict station
Publikováno v:
Statistical Papers. 61:2313-2330
To incorporate the realized volatility in stock return, Hansen et al. (J Appl Econ 27:877–906, 2012) proposed a RealGARCH model and conjectured some theoretical properties about the quasi-maximum likelihood estimation (QMLE) for parameters in a log
Autor:
Yanbiao Xiang, Caiya Zhang
Publikováno v:
Statistical Papers. 57:249-265
In this paper, we consider the adaptive group Lasso in high-dimensional linear regression. Some extensions have been done with other fitting procedures, such as adaptive Lasso, nonconcave penalized likelihood and adaptive elastic-net. Under appropria
Publikováno v:
Journal of Applied Statistics. 39:385-397
Based on data depth, three types of nonparametric goodness-of-fit tests for multivariate distribution are proposed in this paper. They are Pearson’s chi-square test, tests based on EDF and tests based on spacings, respectively. The Anderson–Darli
Publikováno v:
Communications in Statistics - Theory and Methods. 40:1131-1141
Zuo (2004) investigated the simplified replacement finite sample breakdown point of weighted L p -depth and L p -median for some appropriate weight functions. The addition breakdown point of weighted L p -depth functions is studied firstly in this ar
Autor:
Chao Gao, Caiya Zhang
Publikováno v:
Communications in Statistics - Simulation and Computation. 39:1049-1056
Sammon mapping is an approach of nonlinear dimension reduction and can be used for visualization. To avoid numerical complexity of the algorithm of traditional Sammon mapping, Kovacs and Abonyi (2004) proposed a modified Sammon mapping method. Howeve
Publikováno v:
Journal of Nonparametric Statistics. 21:683-696
Huang et al. [J. Huang, S. Ma, and C.-H. Zhang, Adaptive Lasso for sparse high-dimensional regression models, Statist. Sinica 18 (2008), pp. 1603–1618] have studied the asymptotic properties of the...
Autor:
Zhengyan Lin, Caiya Zhang
Publikováno v:
Journal of Statistical Planning and Inference. 138:4033-4040
In this paper, we study a random field Uɛ(t,x) governed by some type of stochastic partial differential equations with an unknown parameter θ and a small noise ɛ. We construct an estimator of θ based on the continuous observation of N Fourier coe