Machine Learning Approach for Multi-Layered Detection of Chemical Named Entities in Text

Machine Learning Approach for Multi-Layered Detection of Chemical Named Entities in Text

Usha B. Biradar, Harsha Gurulingappa, Lokanath Khamari, Shashikala Giriyan
Copyright: © 2016 |Volume: 8 |Issue: 1 |Pages: 15
ISSN: 1942-9045|EISSN: 1942-9037|EISBN13: 9781466690684|DOI: 10.4018/IJSSCI.2016010101
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MLA

Biradar, Usha B., et al. "Machine Learning Approach for Multi-Layered Detection of Chemical Named Entities in Text." IJSSCI vol.8, no.1 2016: pp.1-15. http://doi.org/10.4018/IJSSCI.2016010101

APA

Biradar, U. B., Gurulingappa, H., Khamari, L., & Giriyan, S. (2016). Machine Learning Approach for Multi-Layered Detection of Chemical Named Entities in Text. International Journal of Software Science and Computational Intelligence (IJSSCI), 8(1), 1-15. http://doi.org/10.4018/IJSSCI.2016010101

Chicago

Biradar, Usha B., et al. "Machine Learning Approach for Multi-Layered Detection of Chemical Named Entities in Text," International Journal of Software Science and Computational Intelligence (IJSSCI) 8, no.1: 1-15. http://doi.org/10.4018/IJSSCI.2016010101

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Abstract

Identification of chemical named entities in text and subsequent linkage of information to biological events is of immense value to fulfill the knowledge needs of pharmaceutical and chemical R&D. A significant amount of investigation has been carried out since a decade for identifying chemical named entities at morphological level. However, a barrier still remains in terms of value proposition to scientists at chemistry level. Therefore, the work described here aims to circumvent the information barrier by adaptation of a Conditional Random Fields-based approach for identifying chemical named entities at various levels namely generic chemical level, morphological level, and chemistry level. Substantial effort has been invested on generation of suitable multi-level annotated corpora. Recommended machine learning practices such as active learning-based training corpus generation and feature optimization have been systematically performed. Evaluation of system performance and benchmarking against the other state-of-the-approaches showed improved results.

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