upload hub_repos/nlmchem/README.md to hub from bigbio repo

README.md

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+
+---
+language: 
+- en
+license: cc0-1.0
+license_bigbio_shortname: CC0_1p0
+pretty_name: NLM-Chem
+---
+
+
+# Dataset Card for NLM-Chem
+
+## Dataset Description
+
+- **Homepage:** https://biocreative.bioinformatics.udel.edu/tasks/biocreative-vii/track-2
+- **Pubmed:** True
+- **Public:** True
+- **Tasks:** Named Entity Recognition, Named Entity Disambiguation, Text Classification
+
+
+NLM-Chem corpus consists of 150 full-text articles from the PubMed Central Open Access dataset,
+comprising 67 different chemical journals, aiming to cover a general distribution of usage of chemical
+names in the biomedical literature.
+Articles were selected so that human annotation was most valuable (meaning that they were rich in bio-entities,
+and current state-of-the-art named entity recognition systems disagreed on bio-entity recognition.
+
+
+
+## Citation Information
+
+```
+@Article{islamaj2021nlm,
+title={NLM-Chem, a new resource for chemical entity recognition in PubMed full text literature},
+author={Islamaj, Rezarta and Leaman, Robert and Kim, Sun and Kwon, Dongseop and Wei, Chih-Hsuan and Comeau, Donald C and Peng, Yifan and Cissel, David and Coss, Cathleen and Fisher, Carol and others},
+journal={Scientific Data},
+volume={8},
+number={1},
+pages={1--12},
+year={2021},
+publisher={Nature Publishing Group}
+}
+
+```