The statistical perspective on boosting algorithms focuses on optimization, drawing parallels with maximum likelihood estimation for logistic regression. In this paper we present empirical evidence that raises questions about this view. Although the statistical perspective provides a theoretical framework within which it is possible to derive theorems and create new algorithms in general contex...

This paper discusses the relation between deontic logic and the study of conversational interactions. Special attention is given to the notion of remedial interchange as analysed by sociologists and linguistic pragmaticians. This notion is close to the one of contrary-to-duty (reparational) obligation, which deontic logicians have been studying in its own right. The present article also investi...

Exo-planet migration is assumed to have occurred to explain close-to-star gas giant exoplanets within the context of the so-called standard model of solar system formation, rather than giving cause to question the validity of that particular model. I present evidence against the concept of planet migration, evidence that is historical, interdisciplinary, and model-independent. First, I demonstr...

In traditional IT outsourcing and multisourcing arrangements, clients isolate vendor tasks, resulting in modular sourcing structures. But this approach can stifle vendor competition, result in vendor lock-in and hinder organizational flexibility. The full article describes how adidas adopted a new type of multisourcing strategy, which embraces vendor overlaps to overcome these constraints, and ...

Contrary to duties (CTD) are dealt with in the framework of standard deontic logic (SDL), and ordinary Kripke possible world models. Given a world t, one associates statically a non-empty set I(t) of ideal worlds for t and t Oq (q is obligatory for t) if q holds in all the worlds of I(t). This is a static perception of obligation. If we have to list as t the set of all obligations for the world...

Reversal is the current stylized fact of weekly returns. To the contrary, we find a robust and dominant momentum in one-week returns. The brief reversal that follows extreme weekly returns is itself followed by an opposing stream of continuation in returns. These subsequent momentum profits are strong enough to offset the initial reversal and to produce a significant momentum effect over the fu...

Considerable evidence has accumulated linking high salt intake to the risk of developing stomach cancer (1, 2). In addition to a geographic correlation of areas showing high salt intake with those having high stomach cancer mortality (3) and evidence incriminating preserved, often salty foods (4, 5), case-control studies in which individuabs have been asked about the routine addition of salt to...