This paper explores urban freeway users' diversion responses to D-VMS (a new type of freeway variable message sign that explicitly provides travel times for both freeways and local streets) in the context of China. An on-site stated preference questionnaire survey was conducted to collect...

In this paper, we study the competition model of commercial websites with learning and updating speed, and further analyze the influence of learning and updating speed on the growth of commercial websites from a nonlinear dynamics perspective. Using the center manifold theory and the normal form...

In this paper, we focus on single-index models for longitudinal data. We propose a procedure to estimate the single-index component and the unknown link function based on the combination of the penalized splines and quadratic inference functions. It is shown that the proposed estimation method...

This paper introduces the robust empirical likelihood (REL) inference for the longitudinal data. We propose the REL method by constructing robust auxiliary random vectors, and employ bounded scores and leverage-based weights in the auxiliary random vectors to achieve robustness against outliers...

In this paper, we consider improved estimating equations for semiparametric partial linear models (PLM) for longitudinal data, or clustered data in general. We approximate the non-parametric function in the PLM by a regression spline, and utilize quadratic inference functions (QIF) in the...

In this paper, we propose a robust empirical likelihood (REL) inference for the parametric component in a generalized partial linear model (GPLM) with longitudinal data. We make use of bounded scores and leverage-based weights in the auxiliary random vectors to achieve robustness against...