In this paper we will classify patterns using a modified Perceptron algorithm (Dumitrache et al., 1999). The generalization uses the eigenvalues and the eigenvectors of the sample covariance matrix, as we did for classifying patterns using PCR (Ciuiu 2007b).We shall also define measurements for...

This paper aims to explore the forecasting accuracy of RON/USD exchange rate structural models with monetary fundamentals. I used robust regression approach for constructing robust neural models less sensitive to contamination with outliers and I studied its predictability on 1 to 6-month...

The paper advances an original artificial intelligence-based mechanism for specific economic predictions. The aim is to forecast the exchange rate of euro versus the Romanian currency using a large set of financial data. The possible influence of specific forecasting indicators (such as Sibiu...

The paper advances an original artificial intelligence-based mechanism for specific economic predictions. The time series under discussion are non-stationary; therefore the distribution of the time series changes over time. The algorithm establishes how a viable structure of an artificial neural...

The paper presents some aspects regarding the use of pattern recognition techniques and neural networks for the activity evolution diagnostication and prediction by means of a set of indicators. Starting from the indicators set there is defined a measure on the patterns set, measure representing...

The new (2002) version of the "Pre-Accession Economic Program" has to take into account both the experience accumulated in the implementation of its previous (2001) form, and the changes occurred during 2001-2002 in the domestic and international environment, which have affected the Romanian...

The first section attempts to define the main problems, taking into account that the productive performance of the Romanian economy is affected by a double constraint – both from a supply side and the from the demand side. Four essential factors are identified on the supply side: the existence...

The growth rate of different economies in Europe depends strongly on the production and, especially, on the consumption of energy resources. As an empirical rule, the development of such economies is closely interrelated with a consistent CO2 emission into atmosphere. However, this aspect has a...

Starting from the basic relationship among investment, GDP and the active interest rate estimated as long-term tendency, several short-term dynamics equation are built for revealing the impact of different factors: cost of capital, foreign direct investments, labor (unemployment rate, real net...

The current paper attempts to describe the labor market parameter dynamics using a different method, namely the semi-Markovian processes. This method allows for the labor market study without the large fluctuations that occurred at a certain moment in time impinging upon the results of the...