RT Journal Article T1 Degradation detection algorithm for LTE root cause analysis. A1 Khatib, Emil Jatib A1 Barco-Moreno, Raquel A1 Serrano, Inmaculada K1 LTE (Telecomunicaciones) AB Self-Organizing Networks (SON) aim to automate network Operation & Maintenance tasks. SONs comprise self-configuration, self-optimization and self-healing. Within self-healing, root cause analysis, i.e. diagnosis of the cause of the network problems, is one of the most difficult tasks. To automate diagnosis, Data Mining (DM) algorithms over sets of solved troubleshooting cases can be applied in order to use Knowledge Based Systems. Data reduction is part of the DM process, where large time-dependent matrices of Performance Indicators (PIs) are transformed into time-independent vectors of values. In this work, an algorithm for data reduction is proposed, which is based on detecting the time intervals when the service of an LTE eNodeB is degraded and aggregating the values of the time dependent PIs for those intervals. The results show that the detecting capability of the algorithm is higher than other proposed solutions, and that a high volume reduction factor can be achieved. PB Springer Nature YR 2017 FD 2017-08-01 LK https://hdl.handle.net/10630/37331 UL https://hdl.handle.net/10630/37331 LA eng NO Khatib, E.J., Barco, R. & Serrano, I. Degradation Detection Algorithm for LTE Root Cause Analysis. Wireless Pers Commun 97, 4563–4572 (2017). https://doi.org/10.1007/s11277-017-4738-6 NO https://openpolicyfinder.jisc.ac.uk/id/publication/14921 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 24 ene 2026