We propose an automated system for out-of-sample predictions of a set of European stock indices. The system performs on piecewise linear representations of the time series. An automated segmentation algorithm converges to an optimum segmented time series representation, which achieves considerable data compression and allows variable sampling rate of the time series depending on different segme...

Decision making tasks are often complex and ill-defined, and they are also multi-aspect because many factors influence the decision process. Decision support systems (DSS) which are frequently used in business and manufacturing have a potential to cope with vagueness and illstructure of complex decision making situations. Also an optimum DSS can be developed for multidimensional decision proble...

Recent advances in word sense induction rely on clustering related words. In this paper, instead of using a clustering algorithm, we suggest to perform a Singular Value Decomposition (SVD) which can be guaranteed to always find a global optimum. However, in order to apply this method to the problem of word sense induction, a semantic interpretation of the dimensions computed by the SVD is requi...

| In this paper, the combination of signal shaping and coding in mul-tilevel coding schemes is discussed. It is shown that for optimized discrete Gaus-sian distributed signal points the gap to the Shannon limit is negligible. Since for nite constellations coding and shaping are not separable, the optimum sharing of the total redundancy between coding and shaping is derived. It turns out that fo...

Dimension stone as a specific nonmetallic raw material, regarding deposit conditions, exploitation methods and processing, demands an adequate estimate of dimensioning i.e. optimalization of the exploitation in relation to the structural elements. The analyzed and presented examples show that in natural conditions ada tation of the exploitation technology to the discontinuity fatric could resul...

the impact resistance of new lightweight panel is studied. this panel consists of two thin metal layers bonded together by intermediate fiber/epoxy layers (mcm-sheets). to simulate a behavior of this kind of impact problem, explicit and implicit finite element software abaqus is used. in order to validate the finite element modeling, these results have been compared with experimental test resul...

In this paper, the performance of the Multi Dynamics Algorithm for Global Optimization (MAGO) is studied through simulation using five standard test functions. To guarantee that the algorithm converges to a global optimum, a set of experiments searching for the best combination between the only two MAGO parameters -number of iterations and number of potential solutions, are considered. These pa...