Skip to main content

Table 1 Adjacency list representation of final belief network. The destination vertices from each vertex are shown in the "Connections" column

From: Generating prior probabilities for classifiers of brain tumours using belief networks

Vertex Description Connections (vertex, weight)
v 1 posterior fossa (v 3, 222/631), (v 4, 109/631), (v 5, 300/631)
v 2 supratentorial (v 6, 276/702), (v 7, 67/702), (v 8, 21/702), (v 9, 17/702), (v 10, 99/702), (v 11, 104/702), (v 12, 67/702), (v 13, 51/702)
v 3 brain stem (v 24, 189/222), (v 28, 1/222), (v 29, 3/222), (v 30, 4/222), (v 31, 6/222), (v 32, 19/222)
v 4 IV ventricle (v 24, 16/109), (v 28, 3/109), (v 29, 24/109), (v 30, 56/109) (v 32, 10/109)
v 5 cerebellum (v 24, 168/300), (v 28, 9/300), (v 29, 12/300), (v 30, 87/300), (v 31, 3/300), (v 32, 21/300)
v 6 cerebrum (v 14, 4/230), (v 15, 55/230), (v 16, 14/230), (v 17, 70/230), (v 18, 87/230)
v 7 pineal (v 24, 3/67), (v 26, 19/67), (v 27, 17/67), (v 28, 1/67) (v 32, 27/67)
v 8 pituitary (v 25, 12/21), (v 32, 9/21)
v 9 lateral ventricle (v 24, 5/17), (v 29, 1/17), (v 31, 1/17), (v 32, 10/17)
v 10 optic pathway (v 19, 25/99), (v 20, 74/99)
v 11 sella turcica (v 24, 25/104), (v 25, 51/104), (v 27, 10/104), (v 28, 1/104), (v 29, 1/104), (v 31, 1/104), (v 32, 15/104)
v 12 "deep structures" (v 21, 52/67), (v 22, 14/67), (v 23, 1/67)
v 13 III ventricle (v 24, 26/51), (v 25, 4/51), (v 29, 3/51), (v 30, 2/51), (v 31, 1/51), (v 32, 15/51)
v 14 "other cerebral area" (v 24, 3/4), (v 32, 1/4)
v 15 frontal lobe (v 24, 19/55), (v 25, 3/55), (v 28, 4/55), (v 29, 5/55), (v 31, 8/55), (v 32, 16/55)
v 16 occipital lobe (v 24, 7/14), (v 28, 2/14), (v 29, 2/14), (v 32, 3/14)
v 17 parietal lobe (v 24, 37/70), (v 28, 13/70), (v 29, 4/70), (v 30, 2/70), (v 31, 3/70), (v 32, 11/70)
v 18 temporal lobe (v 24, 51/87), (v 28, 2/87), (v 29, 7/87), (v 30, 1/87), (v 31, 5/87), (v 32, 21/87)
v 19 optical chiasm (v 24, 22/25), (v 25, 1/25), (v 32, 2/25)
v 20 optic nerve (v 24, 73/74), (v 32, 1/74)
v 21 thalamus (v 24, 35/52), (v 28, 1/52), (v 29, 1/52), (v 31, 3/52) (v 32, 12/52)
v 22 hypo-thalamus (v 24, 10/14), (v 27, 1/14), (v 32, 3/14)
v 23 basal ganglia (v 24, 1/1)
v 24 astrocytoma G1, G2 and optic pathway glioma (v 24, 1)
v 25 craniopharyngioma (v 25, 1)
v 26 pineoblastoma (v 26, 1)
v 27 germinoma (v 27, 1)
v 28 PNET (v 28, 1)
v 29 ependymoma (v 29, 1)
v 30 medulloblastoma (v 30, 1)
v 31 astrocytoma G3, G4 (v 31, 1)
v 32 other tumour (v 32, 1)
  1. The probabilities (weights) for each connection are expressed as a fraction, giving the final quantities obtained from the WMRCTR. For example, 222 cases of the 631 tumours in the posterior fossa, were in the brain stem.