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. Author manuscript; available in PMC: 2012 Feb 6.
Published in final edited form as: Genet Epidemiol. 2010 Apr;34(3):213–221. doi: 10.1002/gepi.20451

TABLE I.

Similarity scores associated with the pair of genotypes gi and gj using all the 8 kernels.

Additive kernels
REC LIN QUAD AM
wi(gi) 0

(a/a)
0

(a/b)
1

(b/b)
wi(gi) 0

(a/a)
1

(a/b)
2

(b/b)
wi(gi) 1

(a/a)
2

(a/b)
4

(b/b)
wi(gi) (a/a) (a/b) (b/b)
wj(gj) wj(gj) wj(gj) wj(gj)
0 (a/a) 0 0 1 0 (a/a) 0 1 2 1 (a/a) 2 3 5 (a/a) 4 2 0
0 (a/b) 0 0 1 1 (a/b) 1 2 3 2 (a/b) 3 4 6 (a/b) 2 4 2
1 (b/b) 1 1 2 2 (b/b) 2 3 4 4 (b/b) 5 6 8 (b/b) 0 2 4
Product kernels
Prod-0.1.2 Prod-1.2.3 Prod-1.2.4 AS
wi(gi) 0

(a/a)
1

(a/b)
2

(b/b)
wi(gi) 1

(a/a)
2

(a/b)
3

(b/b)
wi(gi) 1

(a/a)
2

(a/b)
4

(b/b)
wi(gi) 0

(a/a)
1

(a/b)
2

(b/b)
wj(gj) wj(gj) wj(gj) wj(gj)
0 (a/a) 0 0 0 1 (a/a) 1 2 3 1 (a/a) 1 2 4 0 (a/a) 0 0 0
1 (a/b) 0 1 2 2 (a/b) 2 4 6 2 (a/b) 2 4 8 1 (a/b) 0 1 1
2 (b/b) 0 2 4 3 (b/b) 3 6 9 4 (b/b) 4 8 16 2 (b/b) 0 1 2