One tradition in the logical study of argumentation is to allow for arguments that combine strict and defeasible inference rules, and to derive the strict inference rules from a logic at least as strong as classical logic. An unsolved problem in this tradition is how the trivialising effect of the classical Ex Falso principle can be avoided when two arguments that use defeasible rules have cont...

This paper contains a new format for analytic tableaux, called goaldirected tableaux. Their main interest lies in the fact that they are more efficient than the usual analytic tableaux (in general, they lead to less branching). They can also be used to develop an efficient tableaux-based approach to abduction. The goal-directed tableaux do not form a full decision method for propositional class...

Probably nothing makes human beings more different from other species—and from one another— than their intelligence. The subject is of profound general interest—what the brain is for and how it works, the distinctiveness of the human mind, what makes us individual and human—yet delivers so little. Human intelligence remains poorly defined and characterized, even among those who most study it. R...

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Multi-class problems have a richer structure than binary classification problems. Thus, they can potentially improve their performance by exploiting the relationship among class labels. While for the purposes of providing an automated classification result this class structure does not need to be explicitly unveiled, for human level analysis or interpretation this is valuable. We develop a mult...

The massive national experiment in electricity deregulation — launched by over a dozen states more than a decade ago, in the wake of the Reagan revolution — has failed on multiple counts. Intended to reduce electricity rates, deregulation instead increased rates. For the 10 months through October 2006, average rates in deregulated states were 55 percent higher than in regulated states. Volatili...

Finding extraterrestrial intelligence would calibrate humanity’s place in the cosmos. It would also complete the so-called Copernican revolution. Beginning about 470 years ago, observation and scientific reasoning led to an accurate understanding of our place in the physical universe. The goal of SETI – the Search for Extraterrestrial Intelligence – is to learn our place in the intellectual uni...

GPmuse is software which explores one connection between computation and creativity using a symbiosis-inspired genetic programming paradigm in which distinct agents collaborate to produce 16th-century counterpoint.

The purpose of this exploratory paper is to show the consequence of applying the Copernican Revolution represented by the Critique of the Pure Reason to IS. This revolution has three important implications. First, it implicitly makes a clear distinction between the object of knowledge and the origin of knowledge. Second, it implicitly goes beyond the classical alternatives between perception an...

Background The case of Romand concerns a man who pretended to be a medical doctor and killed his family while the fake identity he had cautiously impersonated for 18 years was about to be exposed. The purpose of this study is to determine the motive of Romand’s following criminal act. In 1993, Romand smashed his wife’s skull and shot his children while asleep. Afterwards, he joined his parents ...