When centers can fail: A close second opportunity

When Does Weighted A* Fail?

Weighted A* is the most popular satisficing algorithm for heuristic search. Although there is no formal guarantee that increasing the weight on the heuristic cost-to-go estimate will decrease search time, it is commonly assumed that increasing the weight leads to faster searches, and that greedy search will provide the fastest search of all. As we show, however, in some domains, increasing the ...

When Intuitions Fail

The title of this article looks in two different directions. It asks, "When do intuitions fail?" hoping to locate the conditions under which intuitions are likely to beunreliable.But it can also be the subordinate clause, of the question, "When intuitions fail, what can we do?": Both approaches, the remedial and the prophylactic, will be considered here. In 1951, Carl Voegelin and Zellig Harris...

When the Eyes Fail

When Checkpoints Fail

age during the segregation of sister chromatids. Checkpoints Monitor DNA Damage and Regulate Genetic studies have identified many of the compoCell Cycle Progression nents of checkpoints in the yeastsSaccharomyces cereA number of surveillance systems exist that interrupt visiae (reviewed in Murray, 1995) and Schizosaccharocell cycle progression when damage to the genome or myces pombe (reviewed ...

When Can Finite Testing Ensure Infinite Trustworthiness?

In this paper we contribute to the general philosophical‎ ‎question as to whether empirical testing can ever prove a physical law.‎ ‎Problems that lead to this question arise under several contexts‎, ‎and the ‎matter has been addressed by the likes of Bayes and Laplace‎. ‎After pointing‎ ‎out that a Bayesian approach is the proper way to address this problem‎, ‎we‎ ‎show that the answ...