Recommendations are becoming more and more important in a world where there is an abundance of possible choices and e-commerce and content providers are featuring recommendations prominently. Recommendations based on explicit feedback, where user is giving feedback for example with ratings, has been a popular research subject. Implicit feedback recommender systems which passively collects infor...

In order to understand human decision making it is necessary to understand how the brain uses feedback to guide goal-directed behavior. The ventral striatum (VS) appears to be a key structure in this function, responding strongly to explicit reward feedback. However, recent results have also shown striatal activity following correct task performance even in the absence of feedback. This raises ...

In this paper we consider the stabilisability of dynamical systems via time-delayed state and output feedback control. Based on an eigenvalue optimisation approach in combination with a continuation argument and a result characterising properties of the optimum eigenvalue configurations, we obtain explicit expressions for stabilisability boundaries for two-dimensional systems. As time-delayed f...

The present study investigated EFL teachers’ beliefs about oral corrective feedback (CF), their CF-provision practices across elementary and intermediate levels, and their beliefs-practices correspondence. To this end, the researchers conducted a semi-structured interview with the teachers and went on an overall forty-hour observation of their classrooms across both levels. The findings reveale...

corrective feedback (cf) and its different types have long absorbed many scholars and practitioners. as ellis (2009) mentioned some experimental studies need to be carefully designed to discover the relative effectiveness of each of these cf techniques. the goal of this qualitative study was to discover whether the employment of different cf strategies could bring about an attitudinal shift. to...

This paper explores male and female students' and teachers' perceptions of the role of grammar instruction and corrective feedback. A questionnaire, administered to 60 male and female intermediate EFL students (30 males and 30 females) and 40 teachers (20 males and 20 females), elicited student and teacher perceptions concerning the role of explicit grammar instruction and corrective feedback i...