In this paper we present mechanisms that improve the accuracy and performance of history-based branch prediction. By studying the characteristics of the decision structures present in high-level languages, two mechanisms are proposed that reduce the number of wrong predictions made by a branch target buer (BTB). Execution-driven modeling is used to evaluate the improvement in branch prediction ...

The great majority of medical diagnoses are made using automatic, efficient cognitive processes, and these diagnoses are correct most of the time. This analytic review concerns the exceptions: the times when these cognitive processes fail and the final diagnosis is missed or wrong. We argue that physicians in general underappreciate the likelihood that their diagnoses are wrong and that this te...

BACKGROUND When individual judgment conflicts with a group, the individual will often conform his judgment to that of the group. Conformity might arise at an executive level of decision making, or it might arise because the social setting alters the individual's perception of the world. METHODS We used functional magnetic resonance imaging and a task of mental rotation in the context of peer ...

This Communication contains an error regarding the structure of (S)-1l, in Scheme 3, which was drawn as wrong enantiomer. The correct (S)-1l with configuration at chiral center is shown below. None conclusions are affected any way by this correction.