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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: Artif Intell Med. 2015 Apr 2;64(1):29–40. doi: 10.1016/j.artmed.2015.03.002

Table 3.

Observed trapezoids of various kinds between SNOMED CT and four reference terminologies.

Path length
ratio of reference
terminology:
SNOMED CT		 Number of
trapezoids		 Additional
concepts in
SNOMED CT		 Path length
ratio of reference
terminology:
SNOMED CT		 Number of
trapezoids		 Additional
concepts in
reference
terminology
1:2 4998 2521 2:1 1282 734
1:3 1913 1754 3:1 208 257
1:4 707 922 4:1 27 67
1:5 439 628 5:1 7 23
1:6 223 444 6:1 1 5
1:7 94 174 7:1 0 0
1:8 37 59 8:1 0 0
1:9 4 10
1:10 0 0
1:11 0 0