Two Results on Discontinuous Input Processing
نویسنده
چکیده
First, we show that universality and other properties of general jumping finite automata are undecidable, which answers a question asked by Meduna and Zemek in 2012. Second, we close the study raised by Černo and Mráz in 2010 by proving that clearing restarting automata using contexts of size two can accept binary non-context-free languages.
منابع مشابه
The Impact of Learning Styles on the Iranian EFL Learners' Input Processing
This research study explored the impact of learning styles and input modalities on the second language (L2) learners' input processing (IP). This study also sought to appraise the usefulness of Processing Instruction (PI) and its components in relation to the learners' learning styles and input modalities. To this end, 73 male and female Iranian EFL learners from Islamic Azad University, North ...
متن کاملEffects of Structured Input and Meaningful Output on EFL Learners' Acquisition of Nominal Clauses
The current second language (L2) instruction research has raised great motivation for the use of both processing instruction and meaningful output instruction tasks in L2 classrooms as the two focus-on-form (FonF) instructional tasks. The present study investigated the effect of structured input tasks (represented by referential and affective tasks) compared with meaningful output tasks (implem...
متن کاملAn Investigation of Spoken Output and Intervention Types among Iranian EFL Learners
This study was inspired by VanPatten and Uludag’s (2011) study on the transferability of training via processing instruction to output tasks and Mori’s (2002) work on the development of talk-in-interaction during a group task. An interview was devised as the pretest, posttest, and delayed posttest to compare four intervention types for teaching the simple past passive: traditional intervention ...
متن کاملSliding-Mode Control of the DC-DC Ćuk Converter in Discontinuous Conduction Mode
In this paper, a novel approach for two-loop control of the DC-DC Ćuk converter in discontinuousconduction mode is presented using a sliding mode controller. The proposed controller can regulatethe output of the converter in a wide range of input voltage and load resistance. Controllerparameters are selected using PSO algorithms. In order to verify the accuracy and efficiency of thedeveloped sl...
متن کاملDiscontinuous Lyapunov functional approach to synchronization of time-delay neural networks using sampled-data
This paper investigates the synchronization problem of neural networks with time-varying delay under sampled-data control in the presence of a constant input delay. Based on the extended Wirtinger inequality, a discontinuous Lyapunov functional is introduced, which makes full use of the sawtooth structure characteristic of sampling input delay. A simple and less conservative synchronization cri...
متن کاملMonthly runoff forecasting by means of artificial neural networks (ANNs)
Over the last decade or so, artificial neural networks (ANNs) have become one of the most promising tools formodelling hydrological processes such as rainfall runoff processes. However, the employment of a single model doesnot seem to be an appropriate approach for modelling such a complex, nonlinear, and discontinuous process thatvaries in space and time. For this reason, this study aims at de...
متن کامل