The CHEMDNER corpus of chemicals and drugs and its annotation principles

Table 2 CHEMDNER abstracts, split into chemical disciplines (subject categories, first column; MULTIDISCIPL. CHEM.: Multidisciplinary Chemistry).

Chem. subject categories	Abstracts	Mentions	AB	FA	FO	ID	MU	NO	SY	TR
PHARMACOLOGY	1,983	23,368	18.81	10.54	6.42	4.93	0.64	0.29	17.28	41.09
MEDICINAL CHEMISTRY	1,957	17,543	10.00	21.11	8.00	2.10	1.56	0.12	25.88	31.23
ORGANIC CHEMISTRY	1,893	22,622	18.77	10.56	6.56	5.00	0.63	0.30	17.43	40.74
TOXICOLOGY	1,664	21,608	20.82	10.59	14.16	1.35	0.46	0.13	22.68	29.81
MULTIDISCIPL. CHEM.	1,217	11,892	14.38	12.15	27.97	0.52	0.55	0.13	25.62	18.67
PHYSICAL CHEMISTRY	997	9,682	12.14	9.81	36.39	0.27	0.43	0.15	27.57	13.24
BIOCHEMISTRY	879	6,503	18.75	16.55	14.24	1.12	0.34	0.11	23.17	25.73
APPLIED CHEMISTRY	843	7,759	8.48	24.45	7.71	0.17	1.37	0.10	24.99	32.74
ENDOCRINOLOGY	652	5,484	14.66	16.01	9.87	1.33	0.15	0.15	20.13	37.71
POLYMER SCIENCE	232	1,999	33.82	17.26	6.50	0.05	0.10	0.00	25.86	16.41
CHEMICAL ENGINEERING	3	42	0.00	0.00	38.10	0.00	0.00	0.00	61.90	0.00

Abstracts: The number of abstracts associated with that category in the CHEMDNER corpus. Mentions: The total number of chemical entity mentions in the abstracts of that category. Remaining columns: The values provided for the different SACEM classes correspond to the percentage of mentions in that category; AB: ABBREVIATION, FA: FAMILY, FO: FORMULA, ID: IDENTIFIER, MU: MULTIPLE, NO: NO CLASS, SY: SYSTEMATIC, TR: TRIVIAL.

ISSN: 1758-2946