This corpus is divided into training, validation and evaluation. All of them contains tokens extracted using ChemTok applied on CHEMDNER corpora in IOB annotation. File contains the following content.

• PMID_Type: PMID is Public Medical Identifier and Type is the Type of Medical Text i.e., Title (T) or Abstract(A).

• Sentence_Index: It is the sentence index of each sentence in Medical text.

• Token: It is the token extracted using ChemTok from each given sentence.

• Tag: It is an IOB annotation given to the token.

NOTE: Please refer README guide from the original corpora or links provided for in-depth information on this subject.

Acknowledgements

Krallinger, M. et al. The CHEMDNER corpus of chemicals and drugs and its annotation principles. J Cheminform, 2014