BMC Bioinformatics

Table 1 Annotation characteristics. Each column represents an annotator: Aut1–3 are the authors of this paper and Oth1–9 are the other annotators. The first five rows show the number of fragments into which sentences were broken by each of the annotators. The counts appearing in subsequent rows are normalized by the number of fragments created by that annotator.

From: New directions in biomedical text annotation: definitions, guidelines and corpus construction

		Aut1	Aut2	Aut3	Oth1	Oth2	Oth3	Oth4	Oth5	Oth6	Oth7	Oth8	Oth9
Number of fragments	1	88	80	86	40	60	85	81	40	47	81	68	83
	2	10	18	12	42	31	16	17	44	44	19	30	16
	3	2	3	3	18	7	0	3	13	8	1	3	2
	4	1	0	0	1	2	0	0	4	2	0	0	0
	5	0	0	0	0	1	0	0	0	0	0	0	0
Focus	G	0.09	0.15	0.13	0.27	0.29	0.16	0.22	0.15	0.2	0.08	0.13	0.07
	M	0.24	0.15	0.23	0.15	0.15	0.18	0.18	0.09	0.15	0.36	0.23	0.15
	S	0.71	0.8	0.82	0.63	0.63	0.8	0.63	0.75	0.65	0.58	0.71	0.79
Polarity	P	0.94	0.94	0.93	0.81	0.92	0.92	0.92	0.88	0.81	0.94	0.92	0.83
	N	0.06	0.06	0.07	0.19	0.08	0.08	0.08	0.12	0.19	0.05	0.08	0.17
Certainty	0	0.02	0.02	0.04	0.01	0	0.02	0.03	0.04	0.01	0.03	0.01	0.08
	1	0.07	0.05	0.13	0.04	0.1	0.05	0.07	0.02	0.04	0.11	0.02	0.03
	2	0.11	0.10	0.13	0.04	0.22	0.05	0.10	0.01	0.05	0.18	0.12	0.03
	3	0.81	0.83	0.69	0.91	0.68	0.88	0.81	0.92	0.9	0.68	0.86	0.87
Evidence	0	0.31	0.34	0.26	0.75	0.38	0.27	0.27	0.7	0.83	0.07	0.31	0.42
	1	0.11	0.09	0.09	0.03	0.07	0.09	0.14	0.03	0	0.43	0.15	0.10
	2	0.19	0.21	0.24	0.14	0.11	0.23	0.23	0.2	0.13	0.16	0.3	0.31
	3	0.41	0.36	0.43	0.08	0.44	0.4	0.4	0.07	0.05	0.34	0.28	0.19
Trend	+	0.13	0.03	0.13	0.12	0.12	0.03	0.07	0.03	0.10	0.05	0.11	0.03
	-	0.19	0.06	0.17	0.19	0.12	0.07	0.13	0.04	0.16	0.06	0.08	0.11
	0	0.68	0.91	0.70	0.69	0.76	0.90	0.80	0.93	0.74	0.89	0.81	0.86

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