Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:…time: Particularly, the learning performance of our animat seems still far from the learning speed that real rat can reach in the same task (Albertin et al., 2000), even if the high time constant that we used in our model does not allow a rigorous comparison yet (cf. parameters table in…
Category: