The bottleneck of a data warehouse implementation is the ETL (extraction, transformation, and load) process, which carries out the initial population of the data warehouse and its further (usually periodical) updates. There is a number of software products supporting the OLAP analysis. However, the ETL process implementation is not repeatable in a significant way. This paper reports on a resear...

Underground mining method selection is one of the most crucial decisions that should be made by mining engineers. Choosing a suitable underground mining method to carry out extraction from a mineral deposit is very important in terms of the economics, safety and the productivity of mining operations. The aim of this study is developing a fuzzy model to selection the optimum mining method by usi...

With the increasing amount of data about the 3D structure of proteins, there is a growing need for computational techniques to analyse these structure data. In our work, we pursue a commonly technique used in On-line Analytical Processing (OLAP) domains – namely the multi-dimensional data model and vectorization of data elements onto multi-dimensional vector spaces. This paper presents prelimin...