We explore unconstrained natural language feedback as a learning signal for artificial agents. Humans use rich and varied to teach, yet most prior work on interactive from assumes particular form of input (e.g., commands). propose general framework which does not make this assumption, instead using aspect-based sentiment analysis decompose into over the features Markov decision process. then in...

By using a unique data set that contains detailed information on consumer perceived attributes of payment methods and consumer perceived acceptance of payment methods by merchants, we estimate the direct effects of rewards card programs on consumer payment choice for in-store transactions. Our estimation approach, which follows Harris and Keane [1999], allows us to alleviate the endogeneity pro...

Monetary rewards are uniquely human. Because money is easy to quantify and present visually, it is the reward of choice for most fMRI studies, even though it cannot be handed over to participants inside the scanner. A typical fMRI study requires hundreds of trials and thus small amounts of monetary rewards per trial (e.g. 5p) if all trials are to be treated equally. However, small payoffs can h...

BACKGROUND Rewards are used to strengthen good behavior among employees based on the general assumption that rewards motivate staff to improve organizational productivity. However, the extent to which rewards influence motivation among health workers (HWs) has limited information that is useful to human resources (HRs) instruments. This study assessed the influence of rewards on motivation amon...

BACKGROUND Payment for organ donation, whether in the form of incentives, rewards or compensation is highly debated and has been denounced by many professional and legislative bodies. Despite the passionate discussion in the literature, there is very limited data on attitudes and perceptions of physicians about providing rewards or compensation to organ donors. We investigated the relationship ...