No abstract

In this paper, we introduce a new iterative learning control (ILC) method, which enables learning from different tracking control tasks. The proposed method overcomes the imitation of traditional ILC in that, the target trajectories of any two consecutive iterations can be completely different. For non-linear systems with time-varying and time-invariant parametric uncertainties, the new learning method works effectively to nullify the tracking error. To facilitate the learning control system design and analysis, in the paper we use a composite energy function (CEF) index, which consists of a positive scalar function and L2 norm of the function approximation error.

Individuals' physical closeness to one another can either increase or decrease their preference for distinctive products. When individuals perceive their proximity to others to be voluntary, they are likely to interpret it as an indication of their affiliation motivation. Consequently, in a product choice task, they choose options that others consider desirable. When people perceive that their close proximity to others results from circumstances beyond their control, however, they feel that their personal space is violated and experience a need for to express their individuality. In this case, they are more likely to choose products that distinguish themselves from others.

The authors document consistent discrepancies among consumers’ predicted, actual, and remembered feelings related to indulgence episodes and conceptualize the underlying processes. Consistent with previous research, consumers expect more negative and less positive feelings when they indulge without a reason than when they indulge with a reason (Study 1) or when they indulge as a consolation for poor performance than when they indulge as a reward for high effort (Study 2). However, episodic reports pertaining to the last indulgence episode show no influence of having versus not having a reason (Study 1), nor do concurrent reports show a difference between indulging as a consolation and indulging as a reward (Study 2). When asked how they “usually” feel when indulging with versus without a reason (Study 3), consumers’ global memories are consistent with their expectations rather than with their actual experiences. These findings have implications for the conditions under which consumers learn from experience.