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. Author manuscript; available in PMC: 2011 Dec 6.
Published in final edited form as: Mol Pharm. 2010 Sep 29;7(6):2120–2131. doi: 10.1021/mp100226q

Table 3.

Validation analysis for the training and test sets when treating the data as binary using 1000μM as the Ki upper limit for an inhibitor.a

true positivesb false negativesc false positivesd true negativese
quantitative model training set (n=22) 14 (63.6%) 0 (0%) 1 (4.55%) 7 (31.8%)
quantitative model test set (n=27, FAST conformer) 8 (29.6%) 8 (29.6%) 0 (0%) 11(40.7%)
quantitative model test set (n=27, BEST conformer) 9 (33.3%) 6 (22.2%) 1 (3.70%) 11(40.7%)
quantitative model literature test set (n=32, FAST conformer) 2 (6.25%) 12 (37.5%) 0 (0%) 18 (56.25%)
quantitative model literature test set (n=32, BEST conformer) 2 (6.25%) 12 (37.5%) 2 (6.25%) 16 (50%)
Bayesian model training set (n=22)f 13 (59.1%) 1 (4.55%) 1 (4.55%) 7 (31.8%)
Bayesian model test set (n=27) 13 (48.1%) 3 (11.1%) 2 (7.41%) 9 (33.3%)
Bayesian model literature test set (n=32) 9 (28.1%) 5 (15.6%) 6 (18.8%) 12 (37.5%)
a

Values in table are numbers of compounds that were true positives, false negatives, false positives, or true negatives. Values in parenthesis are simply the percent of compounds that were true positives, false posi tives, true negatives, or false negatives.

b

True positives were both predicted and observed to be inhibitors (Ki < 1000μM).

c

False negatives were predicted to non- inhibitors but were inhibitors.

d

False positives were predicted to be inhibitors but were non-inhibitors.

e

True negatives were both predicted and observed to be non-inhibitors (Ki > 1000μM).

f

The calculation was based on the leave-one-out cross-validation approach.