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. 2013 Jan 14;11:2. doi: 10.1186/1478-4505-11-2

Table 2.

Schemes for assigning credit to authors of multi-author papers

No. of authors First author Second Third Fourth Fifth
(A) Monotonic scheme proposed by Howard et al.[6].
1
1.0000
 
 
 
 
2
0.6000
0.4000
 
 
 
3
0.4737
0.3158
0.2105
 
 
4
0.4154
0.2769
0.1846
0.1231
 
5
0.3839
0.2559
0.1706
0.1137
0.0758
(B) FLAE scheme proposed by Tscharntke et al.[8].
1
1.0000
 
 
 
 
2
0.66667
0.33333
 
 
 
3
0.54545
0.18182
0.27273
 
 
4
0.50000
0.12500
0.12500
0.25000
 
5
0.47619
0.09524
0.09524
0.09524
0.23810
(C) FLAE scheme proposed by Ellwein et al.[3].
1
1.0000
 
 
 
 
2
0.5556
0.4444
 
 
 
3
0.3846
0.3077
0.3077
 
 
4
0.3086
0.2469
0.1975
0.2469
 
5
0.2577
0.2062
0.1649
0.1649
0.2062
(D) FLAE scheme proposed in the present study. For more than two authors, the first author is assigned 50% of the credit, the last author 30%, and the also-rans have the remaining 20% divided between them.
1
1.0000
 
 
 
 
2
0.7000
0.3000
 
 
 
3
0.5000
0.2000
0.3000
 
 
4
0.5000
0.1000
0.1000
0.3000
 
5 0.5000 0.0667 0.0667 0.0667 0.3000