. Author manuscript; available in PMC: 2018 Aug 1.

Published in final edited form as: J Biomed Inform. 2017 Jun 27;72:23–32. doi: 10.1016/j.jbi.2017.06.019

Table A.7.

Precision [P.], recall [R.], F1 score [F₁] results using UMLS ontology-guided feature extraction and PCA.

POV	# of components	Naïve Bayes			SVM (linear kernel)			SVM (RBF kernel)			MaxEnt
POV	# of components	P.	R.	F₁	P.	R.	F₁	P.	R.	F₁	P.	R.	F₁

0.99	405	0.533	0.950	0.683	0.748	0.779	0.758	0.718	0.775	0.741	0.726	0.810	0.763
0.95	289	0.539	0.938	0.684	0.719	0.767	0.738	0.717	0.744	0.725	0.719	0.790	0.749
0.90	210	0.538	0.942	0.684	0.710	0.751	0.725	0.703	0.736	0.713	0.704	0.775	0.734
0.85	158	0.535	0.934	0.680	0.695	0.729	0.708	0.688	0.728	0.698	0.690	0.760	0.722
0.80	121	0.537	0.934	0.681	0.679	0.740	0.706	0.675	0.732	0.695	0.686	0.768	0.722
0.75	93	0.537	0.926	0.680	0.682	0.756	0.715	0.641	0.736	0.681	0.674	0.764	0.715
0.70	71	0.539	0.915	0.678	0.683	0.764	0.720	0.651	0.725	0.681	0.671	0.752	0.708
0.65	54	0.544	0.896	0.676	0.676	0.744	0.706	0.637	0.741	0.682	0.664	0.744	0.701
0.60	41	0.556	0.888	0.683	0.669	0.764	0.711	0.645	0.772	0.700	0.661	0.748	0.701

Note: Performance of shaded region is not significantly different from the top overall model (i.e., F1 of 77.4%).