Big Data – A State-of-the-Art

The term Big Data has an increased and tautological occurrence in scientific publications. It is of interest how and whether the data provisioning is able to support enterprises in the handling and value creation of this emerging issue. Considering the amount of growing publication and the fuzzy nature of this term, an overview is requested to avoid duplications to gain relevant findings and to identify potential research gaps. To address this issue, a general literature review is accomplished, which extrapolates and clusters discussed research fields and potential gaps. It becomes apparent that a huge part of the research is technical driven. Moreover, no identified paper addresses the research area of functional data provisioning. This initiates further investigations to discuss whether Big Data itself negate such intention or research has missed it and improvements regarding Big Data are possible

Visualization and Cell Data Analysis Tool based on XML Log Files

Mobility management is an essential feature of cellular networks. High accuracy of mobile user positioning is needed to handle mobility efficiently enough and bad cell data can harm this feature significantly. Inaccuracy of cell shapes, lack of cell data measurements, and inaccurate coordination in a geographical area are major shortcomings when it comes to positioning of mobile users in cellular networks. This paper describes a tool that visualizes and analyzes cell data based on XML log files. The tool evaluates a mathematical expression to identify bad cells from the log file and successfully fixes most of the bad cells identified. The tool repairs bad cell shapes in order to achieve better positioning of mobile users