We introduce a novel parametrization of the correlation matrix. The reparametrization facilitates modeling and covariance matrices by an unrestricted vector, where positive definiteness is innate property. This can be viewed as generalization Fisher's Z ‐transformation to higher dimensions has wide range potential applications. An algorithm for reconstructing unique n × matrix from any vector i...

During years, many new types of association rules have been found and well studied ([11], [10], [2], [4]). This work defines new type of association rules based on generalization of definitions of some existing rule types. We also study here its theoretical features; namely e.g. non-symmetricity, monoty, quasi-transitivity. Moreover, the paper provides a method for visualizing such rules using ...

In its second phase, LEP has allowed to study four fermion processes never observed before. Results are presented on the charged triple gauge boson couplings (TGC) from the W-pair, Single W and Single γ production. The anomalous quartic gauge couplings (QGC) are constrained using production of W W γ, ν ¯ νγγ and Zγγ final states. Finally, limits on the neutral anomalous gauge couplings (NGC) us...

A structure of data mining to discovery the inflow resources of product innovation is introduced in this paper. The structure incorporates data mining technique into the new product innovation and development phase. In order to predict product development and marketing trends easily, the product design architecture-based analysis method developed and presented in this article uses the decision ...

The most intense monitoring observations yet made were carried out on the Seyfert 1 galaxy NGC 4151 in the optical and near-infrared wave-bands. A lag from the optical light curve to the near-infrared light curve was measured. The lag-time between the V and K light curves at the flux minimum in 2001 was precisely 48 −3 days, as determined by a cross-correlation analysis. The correlation between...

Chitosan is widely used in films for packaging applications. Chitosan reinforcement by stiff particles or fibers is usually obtained at the expense of lowered ductility and toughness. Here, chitosan film reinforcement by a new type of native chitin nanofibers is reported. Films are prepared by casting from colloidal suspensions of chitin in dissolved chitosan. The nanocomposite films are chitin...