From: Research paper classification systems based on TF-IDF and LDA schemes
 | Description |
---|---|
Method 1 | Using only keywords: top frequency 10, 20, and 30 |
Method 2 | Using only topics by the LDA: topics 10, 20, and 30 |
Method 3 | Combination of Methods 1 and 2: 5 keywords and 5 topics, 10 keywords and 10 topics, and 15 keywords and 15 topics |