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. Author manuscript; available in PMC: 2016 Oct 8.
Published in final edited form as: Stud Health Technol Inform. 2015;216:599–603.

Table 3. Feature contribution: F1-measure (%).

Features Quantitative Qualitative
1. Lexical 90.3 78.3
2. Concept position 57.2 77.2
3. Related concept 78.2 80.2
4. Section 80.9 94.0
1 + 2 91.9 85.9
1 + 2 + 3 91.6 86.9
All (1 + 2 + 3 + 4) 95.6 94.2