The optimization problem of general utility case is considered for countable state semi-Markov decision processes. The regret-utility function is introduced as a function of two variables, one is a target value and the other is a present value. We consider the expectation of the regret-utility function incured until the reaching time to a given absorbing set. In order to characterize the regret...

We examined the influence of self-regulatory focus on the anticipation of regret in the context of life decisions. Eager promotion-focused individuals consider different negative outcomes to be more relevant than do vigilant prevention-focused individuals (e.g., non-gains vs. losses). We proposed that the two regulatory foci would elicit more regret for different negative decision consequences ...

Both affective neuroscience and decision science focus on the role of emotions in decisions. Regret and disappointment are emotions experienced with negative decision outcomes. The present research examines the neural substrates of regret and disappointment as well as the role of regret and disappointment in decision making. Experiment 1 compared the subjective experience of regret and disappoi...

A working paper in the IN SEAD Working Paper Series is intended as a means whereby a fac ulty researcher's thoughts and findings ma y be communicated to interested readers. The paper should be considered preliminary in nature and may require revision. Printed a t INSEAD, Fontainebleau, France. Kindly do not reproduce or circulate without permission. We study the effect of anticipated regret on ...

Regret is a cognitively mediated, multifaceted emotion engendered by thoughts of how things might have been better had we behaved differently. The causes, experience and behavioural impact of regret have been widely studied by psychologists. However, research into the neural basis of regret has been motivated primarily by economic approaches, which often reduce regret to such a simplistic const...

Past research has established a connection between regret (negative emotions connected to cognitions about how past actions might have achieved better outcomes) and both depression and anxiety. in the present research, the relations between regret, repetitive thought, depression, and anxiety were examined in a nationally representative telephone survey. although both regret and repetitive thoug...

CONTEXT In India, female sterilization accounts for 66% of contraceptive use, and age at sterilization is declining. It is likely that some women regret having been sterilized, but data on the prevalence of, and the social and economic correlates of, regret at the national level are insufficient. METHODS Data for analysis came from 30,999 sterilized women aged 15-49 interviewed in the 2005-20...

Recent fMRI studies have investigated brain activity involved in the feeling of regret and disappointment by manipulating the feedback participants saw after making a decision to play certain gambles: full-feedback (regret: participant sees the outcomes from both the chosen and unchosen gamble) vs. partial-feedback (disappointment: participant only sees the outcome from chosen gamble). However,...

For the prediction with expert advice setting, we consider methods to construct algorithms that have low adaptive regret. The adaptive regret of an algorithm on a time interval [t1, t2] is the loss of the algorithm minus the loss of the best expert over that interval. Adaptive regret measures how well the algorithm approximates the best expert locally, and so is different from, although closely...

External regret compares the performance of an online algorithm, selecting among N actions, to the performance of the best of those actions in hindsight. Internal regret compares the loss of an online algorithm to the loss of a modified online algorithm, which consistently replaces one action by another. In this paper we give a simple generic reduction that, given an algorithm for the external ...