Derivamos las condiciones para la elección óptima de cartera bajo una utilidad con aversión al riesgo relativo constante y distribuciones de probabilidad alternativas que son capaces de capturar las caraterísticas de asimetría y curtosis de los rendimientos de los activos financieros....

Many mechanisms have been developed to deliver only relevant informationto the web users and prevent information overload. The most popularrecent developments in the e-cornmerce domain are the user-preference basedpersonalization and recommendation techniques. However, the existing...

This paper provides a framework of using news articles andeconomic data to model the exchange rate changes between Euro andUS dollars. Many studies have conducted on the approach of regressingexchange rate movement using numerical data such as macroeconomicindicators. However, this approach is...

Fully taking into account the hints possibly hidden in the absent data,this paper proposes a new criterion when selecting attributes for splitting tobuild a decision tree for a given dataset. In our approach, it must pay a certaincost to obtain an attribute value and pay a cost if a prediction...