  The IceCube Neutrino Observatory is a Cherenkov detector located at the South
Pole. Its main component consists of an in-ice array of optical modules
instrumenting one cubic kilometer of deep Glacial ice. The DeepCore
sub-detector is a denser in-fill array with a lower energy threshold, allowing
us to study atmospheric neutrinos oscillations with energy below 100 GeV
arriving through the Earth. We present preliminary results of an atmospheric
muon neutrino disappearance analysis using data from 2012 to 2021 and employing
convolutional neural networks (CNNs) for precise and fast event
reconstructions.
