Ζώντας καθημερινά την τουριστική εξέλιξη της χώρας μας και παρατηρώντας συνάμα τις διάφορες αλλαγές, που συντελέστηκαν στο φυσικό περιβάλλον κατά την τελευταία εικοσαετία, δεν μπορεί κανείς παρά να προβληματιστεί και στη ...

Τα τελευταία χρόνια η σχέση της οικονομίας με το περιβάλλον γίνεται όλο και πιο προφανής τόσο στο επίπεδο της επιστημονικής έρευνας όσο και στο επίπεδο της εφαρμογής συγκεκριμένων μέτρων πολιτικής. Η επίδραση της παραγωγής ...

Accurate forecasts are essential for a great number of applications yet large errors and considerable uncertainty characterize most of our attempts for predicting the future. This article surveys empirical studies on ...

Prelemenary free hull girder vibration study of offshore patrol vessel of Hellenic Navy

The frequency response of nonproportionally (or nonclassically or non-Raleigh) damped linear lumped mass systems is discussed here. The exact method, via Laplace transforms, is presented and the practical difficulties ...

Long-term predictions are indispensable for planning and strategy. Yet little is known about their value, their limitations or the most appropriate way of making and using them. This paper examines these issues and proposes ...

This paper describes an empirical investigation aimed at measuring the effect of different initial values and loss functions (both symmetric and asymmetric) on the post-sample forecasting accuracy. The 1001 series of the ...

The Notes section of the international Journal of Forecasting contains commentary on the theory and practice of forecasting in the form of communications to the journal such as research notes, teaching tips, practitioners’ ...

Value at Risk (VaR) is increasingly popular as a management and regulatory tool. To further its acceptance it is necessary to assess its reliability under conditions likely to be encountered in financial markets. A logical ...