In this paper we propose a new class of nonlinear time series models, the threshold variable driven switching autoregressive models. It is a hierarchical model that combines two important nonlinear time series models, the threshold autoregressive (AR) models and the random switching AR models. The underlying time series process switches between two (or more) different linear models. The switchi...

Powered prosthetic arms with numerous controllable functions (i.e., grip patterns or movable joints) can be challenging to operate. Gated control— a common control method for myoelectric arms and other human-machine interfaces—allows users to select a function by switching through a static list of possible functions. However, switching between many controllable functions often entails significa...

This study attempted to investigate the impact of teacher’s code-switching on the acquisition of a problematic grammatical structure, namely, object relative clauses, by intermediate EFL learners. Moreover, a secondary objective of the study was to determine the EFL learners’ attitudes and opinions regarding the effectiveness of teacher’s code-switching in their learning of a specific aspect of...

increasingly put more than one OSes into their computers and devices like mobile phones. Multi-boot and virtualization are two common technologies for this purpose. In this paper we promote a new approach called OS switching. With OS switching, multiple OSes time-share the same computer cooperatively. A typical implementation can reuse an OS's suspend/resume functionality with little modificati...

The problem of multi-therapeutic HIV treatment is posed in this study as a switching problem to find the optimal switching time between the different therapies. To solve the optimal switching problem with nonlinear subsystems an algorithm is developed for learning the cost-to-go as a function versus different switching times and different initial conditions. Once the function is obtained in a c...

Abstract: Discrete event systems involving synchronization and delay phenomena can be described by a linear state representation over (max,+) algebra. Some discrete event systems involving choice phenomena could be transformed, under some conditions, into switching max-plus linear systems modeled as automata. The switching between states of these automata is governed by a switching variable. Th...