Machine Learning for Performance Prediction in Mobile Cellular Networks Janne Riihijärvi and Petri Mähönen Institute for Networked Systems, RWTH Aachen University, Aachen, Germany Image lIcensed by Ingram PublIshIng Abstract-In this paper, we discuss the application of machine learning techniques for performance prediction problems in wireless networks. These problems often involve using existing measurement data to predict network performance where direct measurements are not available. We explore the performance of existing machine learning algorithms for these problems and propose a simple taxonomy of main problem categories. As an example, we use an extensive real-world drive test data set to show that classical machine learning methods such as Gaussian process regression, exponential smoothing of time series, and random forests can yield excellent prediction results. Applying these methods to the management of wireless mobile networks has the potential to significantly reduce operational costs while simultaneously improving user experience. We also discuss key challenges for future work, especially with the focus on practical deployment of machine learning techniques for performance prediction in mobile wireless networks. 1556-603x/18©2018ieee FeBRUARY 2018 | ieee CompUtAtionAl intelligenCe mAgAzine 51