Statistical units described by interval-valued variables represent a special case of Symbolic Objects, where all descriptors are quantitative variables. In this context, the paper presents two different metrics in R for interval-valued data that are based on the definition of the Hausdorff distance in R. Hausdorff distance in R (for any p ≥ 1) is a L∞ norm between pairs of closed sets. However,...

Ekonomická faktorová analýza: všeobecná teória a pôvodné prístupy This research work is about the methodology of economic factorial analysis, which is an actual instrument for the analysis of different economic and technological models. The acceptance of control solutions becomes the result of model’s study in this case. This fact defines the importance of this unit for the analysis of systems....

In this paper, we analyze citation contexts and characterize the different sections of scientific articles in terms of the verbs that appear in citation contexts. We have performed Factorial Correspondence Analysis (CA) using the four sections of the IMRaD (Introduction, Methods, Results and Discussion) structure as categories. Our dataset contains about 80,000 research articles published in th...