Comparison between the inputs of both methods of detecting far-side activity and Farnet’s output. Top: eleven phase-shift maps used as input to FarNet. Each map is computed with 24 h of Doppler observations. The time cadence of the seismic maps is 12 h. The colour scale indicates the phase shift, ranging from −0.28 rad (dark blue) to 0.17 rad (yellow). Bottom: five-day cumulative phase-shift map (a) computed for the central time of the series (input time 0 h, December 25, 2013) and (b) the prediction of FarNet for the same time using the 11 phase-shift maps.