(b) The best value obtained for the b parameter
| Combinations | Parameters | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| k 1 | b | k 3 | k 1 | b | k 3 | k 1 | b | k 3 | k 1 | b | k 3 | k 1 | b | k 3 | k 1 | b | k 3 | k 1 | b | k 3 | |
| 1.3 | 0 | 1.2 | 1.3 | 1 | 1.2 | 1.3 | 0.75 | 1.2 | 1.3 | 0.65 | 1.2 | 1.3 | 0.6 | 1.2 | 1.3 | 0.55 | 1.2 | 1.3 | 0.70 | 1.2 | |
| Porter stemmer-NLM stopwords |
0.1652 | 0.1715 | 0.1807 | 0.1810 | 0.1824 | 0.1821 | 0.1799 | ||||||||||||||
| Porter stemmer-SMART stopwords |
0.1669 | 0.1695 | 0.1813 | 0.1816 | 0.1814 | 0.1808 | 0.1817 | ||||||||||||||
| Krovetz stemmer-NLM stopwords |
0.1667 | 0.1706 | 0.1804 | 0.1802 | 0.1819 | 0.1819 | 0.1795 | ||||||||||||||
| Krovetz stemmer-SMART stopwords | 0.1701 | 0.1707 | 0.1824 | 0.1823 | 0.1824 | 0.1821 | 0.1818 | ||||||||||||||
The bold font refers to the best values for the parameters.