Search Results - subject:"B spline"

Optimal trajectory planning for robotic manipulators using improved teaching-learning-based optimization algorithm

Gao, Xueshan; Mu, Yu; Gao, Yongzhuo - In: Industrial Robot: An International Journal 43 (2016) 3, pp. 308-316

. The trajectory of robotic manipulators complying with the kinematical constraints is constructed by fifth-order B-spline …

Persistent link: https://www.econbiz.de/10014835797

Some New Insights about the Accelerated Failure Time Model.

Ding, Ying - 2010

The semiparametric linear model is an important alternative to the Cox proportional hazards model for censored survival outcomes. In this dissertation, we provide some new insights for the parameter estimators and their asymptotic properties in the semiparametric linear model with censored...

Persistent link: https://www.econbiz.de/10009476921

A simple method for constructing integro spline quasi-interpolants

Boujraf, A.; Sbibih, D.; Tahrichi, M.; Tijini, A. - In: Mathematics and Computers in Simulation (MATCOM) 111 (2015) C, pp. 36-47

In this paper, we study a new method for function approximation from the given integral values over successive subintervals by using cubic B-splines. The method does not need any additional end conditions and it is easy to be implemented without solving any system of linear equations. The method...

Persistent link: https://www.econbiz.de/10011264172

Polynomial spline approach for variable selection and estimation in varying coefficient models for time series data

Lai, Peng; Meng, Jie; Lian, Heng - In: Statistics & Probability Letters 96 (2015) C, pp. 21-27

We propose the penalized estimator with the smoothly clipped absolute deviation (SCAD) penalty for varying coefficient time series models, which in autoregressive models actually performs lag order selection. Theoretical properties are established. Some numerical examples are also presented.

Persistent link: https://www.econbiz.de/10011115968

Robust adaptive estimation for semivarying coefficient models

Zhao, Weihua; Zhang, Riquan; Liu, Jicai; Hu, Hongchang - In: Statistics & Probability Letters 97 (2015) C, pp. 132-141

A novel and robust method is proposed by combining the idea of the modal regression estimation (Yao et al., 2012) and spline based shrinkage estimation method (Lian, 2012). The newly proposed method can simultaneously estimate and separate constant coefficients from varying coefficients and its...

Persistent link: https://www.econbiz.de/10011189339

Spline regression in the presence of categorical predictors

Ma, Shujie; Racine, Jeffrey; Yang, Lijian - In: Journal of applied econometrics 30 (2015) 5, pp. 705-717

Persistent link: https://www.econbiz.de/10011334215

Testing Term Structure Estimation Models: Evidence from Taiwan's Government Bonds Market

Chou, Jian-Hsin; Yu, Hong-Fwu; Hwu, Der-Rong - In: Journal of Economics and Management 4 (2008) 1, pp. 35-63

There are many estimation models for fitting the term structure of interest rates. In Taiwan, the B-spline and Nelson … empirical results for applying the exponential B-spline model, Diament model (1993), or Mansi and Phillips model (2001) to … and knots can improve performance of the exponential B-spline model. (2) After taking illiquidity constraints into account …

Persistent link: https://www.econbiz.de/10008555961

M-estimators for single-index model using B-spline

Zou, Qingming; Zhu, Zhongyi - In: Metrika 77 (2014) 2, pp. 225-246

approximated by B-spline and M-estimators for the parameter and the nonparametric component are obtained in one step. The proposed …

Persistent link: https://www.econbiz.de/10010995153

Efficient estimation of semiparametric copula models for bivariate survival data

Cheng, Guang; Zhou, Lan; Chen, Xiaohong; Huang, Jianhua Z. - In: Journal of Multivariate Analysis 123 (2014) C, pp. 330-344

A semiparametric copula model for bivariate survival data is characterized by a parametric copula model of dependence and nonparametric models of two marginal survival functions. Efficient estimation for the semiparametric copula model has been recently studied for the complete data case. When...

Persistent link: https://www.econbiz.de/10010718995

Novel prath generation algoritm for high-speed pocket milling

Li, Xiongbing; Liang, Jiajia; Ni, Peijun; Wang, Yuguo; … - In: International journal of production research 52 (2014) 2, pp. 397-404

Persistent link: https://www.econbiz.de/10010248837