Table 9.
Method | BL | [1] | [1-2] | [1-3] | [1-4] | [1-5] | [1-6] | [1-7] |
---|---|---|---|---|---|---|---|---|
micro-avg. F1 Training | 0.78 | 0.58*' | 0.76*' | 0.88*' | 0.92*' | 0.95*' | 0.96*' | 0.97*' |
micro-avg. F1 Test | 0.75 | 0.60*' | 0.75' | 0.86*' | 0.91*' | 0.93*' | 0.94*' | 0.94* |
Evaluation performance combining feature sets stepwise according to their stand alone performance (1 Language features; 2 Rule-based features; 3 Text format features; 4 Word length features; 5 Right context word type features; 6 Word type features; 7 Abbreviation feature). * significant difference to base line (p <0.05), ' significant difference to predecessor (p <0.05)