Table 2. Empirical clustering results for (1) Multimedia Documents (2) Multimedia document groups.
| Experiment | Iteration | Optimal θ1 | # of Clusters1 | SC1 | CHI1 | DBI1 | Optimal θ2 | # of Clusters2 | SC2 | CHI2 | DBI2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 15 | 174 | 0.11 | 3.40 | 1.15 | 17 | 79 | 0.08 | 4.97 | 1.79 | |
| 2 | 9 | 200 | 0.15 | 5.88 | 0.88 | 19 | 5 | 0.05 | 3.15 | 2.00 | |
| 1 | 3 | 12 | 240 | 0.12 | 3.82 | 0.83 | 14 | 90 | 0.05 | 2.28 | 1.06 |
| 4 | 14 | 148 | 0.11 | 3.59 | 0.98 | 17 | 54 | 0.05 | 2.66 | 1.47 | |
| 5 | 10 | 248 | 0.15 | 5.60 | 0.75 | 13 | 54 | 0.07 | 3.32 | 1.08 | |
| Mean | 12 | 202 | 0.13 | 4.46 | 0.92 | 16 | 56.4 | 0.06 | 3.28 | 1.48 | |
| 1 | 14 | 209 | 0.10 | 3.39 | 0.97 | 17 | 76 | 0.04 | 2.83 | 1.81 | |
| 2 | 15 | 157 | 0.09 | 3.56 | 1.27 | 16 | 81 | 0.04 | 2.61 | 1.42 | |
| 2 | 3 | 15 | 160 | 0.11 | 3.36 | 1.28 | 15 | 113 | 0.05 | 2.51 | 1.21 |
| 4 | 16 | 123 | 0.08 | 3.62 | 1.50 | 15 | 93 | 0.05 | 2.54 | 1.24 | |
| 5 | 13 | 255 | 0.15 | 4.08 | 0.74 | 16 | 97 | 0.06 | 2.73 | 1.28 | |
| Mean | 14.6 | 180.8 | 0.11 | 3.60 | 1.15 | 15.8 | 92 | 0.04 | 2.65 | 1.39 | |
| 1 | 13 | 187 | 0.08 | 3.49 | 1.08 | 15 | 61 | 0.05 | 2.93 | 1.58 | |
| 2 | 15 | 180 | 0.10 | 3.36 | 1.11 | 16 | 106 | 0.04 | 2.57 | 1.33 | |
| 3 | 3 | 13 | 191 | 0.10 | 4.01 | 1.01 | 15 | 69 | 0.05 | 2.84 | 1.27 |
| 4 | 16 | 102 | 0.09 | 4.51 | 1.59 | 15 | 77 | 0.04 | 2.69 | 1.24 | |
| 5 | 15 | 178 | 0.12 | 3.48 | 1.12 | 16 | 103 | 0.05 | 2.54 | 1.29 | |
| Mean | 14.4 | 167.6 | 0.10 | 3.77 | 1.18 | 15.4 | 83.2 | 0.05 | 2.71 | 1.34 | |
| 1 | 14 | 190 | 0.12 | 3.94 | 1.01 | 16 | 82 | 0.06 | 2.63 | 1.39 | |
| 2 | 14 | 160 | 0.10 | 3.80 | 1.20 | 16 | 55 | 0.06 | 2.84 | 1.56 | |
| 4 | 3 | 14 | 205 | 0.09 | 3.06 | 1.06 | 16 | 85 | 0.04 | 2.64 | 1.43 |
| 4 | 13 | 249 | 0.12 | 3.22 | 0.81 | 15 | 114 | 0.04 | 2.30 | 1.16 | |
| 5 | 13 | 186 | 0.17 | 4.47 | 0.88 | 15 | 78 | 0.05 | 2.58 | 1.18 | |
| Mean | 13.6 | 198 | 0.12 | 3.70 | 0.99 | 15.6 | 82.8 | 0.05 | 2.60 | 1.34 | |
| 1 | 14 | 166 | 0.10 | 4.04 | 1.16 | 15 | 78 | 0.04 | 2.76 | 1.27 | |
| 2 | 13 | 192 | 0.09 | 3.85 | 1.00 | 16 | 80 | 0.05 | 3.01 | 1.62 | |
| 5 | 3 | 13 | 182 | 0.10 | 3.58 | 1.09 | 15 | 58 | 0.05 | 2.78 | 1.40 |
| 4 | 12 | 204 | 0.10 | 4.06 | 0.96 | 14 | 60 | 0.06 | 3.01 | 1.13 | |
| 5 | 12 | 192 | 0.14 | 5.46 | 0.92 | 14 | 64 | 0.05 | 2.74 | 1.14 | |
| Mean | 12.8 | 187.2 | 0.11 | 4.20 | 1.03 | 14.8 | 62 | 0.05 | 2.86 | 1.31 | |
| Mean Average | 13.48 | 187.12 | 0.11 | 3.95 | 1.06 | 15.52 | 75.28 | 0.05 | 2.82 | 1.37 |