A new approach to varying-coefficient additive models with longitudinal covariates
A new approach to varying-coefficient additive models with longitudinal covariates
复制标题
具有纵向协变量的变系数加性模型的新方法
DOI:
10.1016/j.csda.2020.106912
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发表时间:
2020-05
影响因子:
1.8
通讯作者:
Jane-Ling Wang
中科院分区:
文献类型:
--
作者:
Xiaoke Zhang;Qixian Zhong;Jane-Ling Wang
The varying-coefficient additive model is a novel tool for analyzing functional data. The model generalizes both the varying-coefficient model and the additive model, and retains their merits as an effective dimension reduction model that is flexible yet easily interpretable. However, the original method only works for densely recorded functional response processes with time-invariant covariates. To broaden its applicability, the model is extended to allow for time-dependent covariates and a new fitting approach is proposed that can handle sparsely recorded functional response processes. Consistency and L 2 rate of convergence are developed for the proposed estimators of the unknown functions. A simple algorithm is developed that overcomes the computational difficulty caused by the non-convexity of the objective function. The proposed approach is illustrated through a simulation study and a real data application.
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影响因子:
0.8
作者:
Jinhong You;Haibo Zhou
通讯作者:
Jinhong You;Haibo Zhou
影响因子:
2
作者:
R. Carroll;A. Maity;E. Mammen;Kyusang Yu
通讯作者:
R. Carroll;A. Maity;E. Mammen;Kyusang Yu
DOI:
--
发表时间:
2017-05
期刊:
--
影响因子:
--
作者:
M. Stasinopoulos;R. Rigby;G. Heller;V. Voudouris;F. Bastiani
通讯作者:
M. Stasinopoulos;R. Rigby;G. Heller;V. Voudouris;F. Bastiani
DOI:
10.1007/978-1-4757-7107-7
发表时间:
1997-06
期刊:
--
影响因子:
--
作者:
J. Ramsay;Bernard Walter Silverman
通讯作者:
J. Ramsay;Bernard Walter Silverman
DOI:
10.1111/insr.12163
发表时间:
2017-08
期刊:
International statistical review = Revue internationale de statistique
影响因子:
--
作者:
Reiss PT;Goldsmith J;Shang HL;Ogden RT
通讯作者:
Ogden RT