Table 1: Data and Experiments.
Data Experiment 1 Experiment 2 Experiment 3 Experiment 4
Author-Paper 1985 1985 1985 1985+1986
Paper-Field 1985 1985+1986 1985+1986 1985+1986+1987
Train (Authors, Papers) (1985, 1985) (1985, 1985) (1985, 1985) (1985+1986, 1985+1986)
Test (Authors, Papers) (1985, 1985) (1985, 1986) (1985, 1986) (1985+1986, 1987)