Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-10-01

Journal: INFORMATION-AN INTERNATIONAL INTERDISCIPLINARY JOURNAL

Included Journals: SCIE、Scopus

Volume: 14

Issue: 10

Page Number: 3527-3536

ISSN: 1343-4500

Key Words: biomedical named entity recognition; staged and distributed strategy; dictionary-based tagging; machine learning-based recognition

Abstract: This paper proposes a staged and distributed strategy for biomedical named entity recognition (Bio-NER). In this strategy, named entities (NEs) are recognized in two stages: dictionary-based NE tagging and machine learning-based NE recognition. In dictionary-based tagging stage, we exploit a distributed strategy to recognize NEs, in which different models and NE dictionaries are used for recognizing different NEs. This strategy not only exploits strengths of dictionary-based model and machine learning-based model, but also improves the performance and speed of identification. Experimental results show that our approach achieves higher accuracy than previous approaches.