 |
| |||
| precision ratio; relevance factor; relevance ratio; accuracy | |||
| relevance figure | |||
| coefficient de pertinence: 3 短语, 2 学科 |
| 信息技术 | 1 |
| 经济 | 2 |
|
| |||
| precision ratio; relevance factor; relevance ratio; accuracy | |||
| relevance figure | |||
| coefficient de pertinence: 3 短语, 2 学科 |
| 信息技术 | 1 |
| 经济 | 2 |