Table 3.
Experimental results of three different combinations of the proposed technique.
| Test Set | # of abstracts | # of tokens |
|---|---|---|
| A (1978-1989) | 104 | 22,320 |
| B (1990-1999) | 106 | 25,080 |
| C (2000-2001) | 130 | 33,380 |
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