Artificial neural networks are nonlinear models whose parameters (weights) are estimated during so called training procedure. Applying the back propagation algorithm (which is the most popular method of supervised learning), the computed output (for the initial, usually randomly chosen weights)...

W okresie rozczarowania klasycznymi instrumentami rynku finansowego rośnie zainteresowanie inwestycjami alternatywnymi, do których należą mi.in. inwestycje w dzieła sztuki. Jednakże, aby można było traktować je jako instrumenty inwestycyjne, konieczne jest chociażby przybliżone...

The aim of the research is analysis of short- and long-term international relations between stock exchanges in Central and Eastern Europe. The analysis is provided in 3 stages. In the first step the order of the variables integration is examined. In the second stage short-run relationships for...

Gender equality, a policy objective of basically universal acceptance, has become a subject of interest in national governments, international organizations, research instructions, and political pressure groups. This paper reports recent investigations regarding gender disparities in the labor...

As the global financial crisis hit the world-wide stock markets, investors looked for alternative investments to diversify their portfolios. One of the more attractive alternate investment opportunities has been investment in art. However, in order to consider artworks as investment assets, the...

This paper presents and compares 15 trading systems constructed for the Warsaw Stock Exchange futures contracts. These trading systems are constructed applying technical analysis and artificial neural networks (ANN). The efficiency of constructed trading systems is measured by the profit, which...

The aim of the paper is to discuss the application of classification functions and artificial neural networks (such as multilayer perceptron and radial basis function) to recognize the risk category of investigated companies. The research is based on data from 295 enterprises that applied for...