Fig. 6: Trajectory of β1k and β2k on task k.

Ranking instances based on β (t = 20) leads to erroneous estimates of their relative difficulty. We propose to rank instances based on the area under the trajectory of β, denoted as sik.

Ranking instances based on β (t = 20) leads to erroneous estimates of their relative difficulty. We propose to rank instances based on the area under the trajectory of β, denoted as sik.