TESI DOCTORAL - La Salle

5.3. Multimodal consensus clustering results
Data Consensus Consensus function
set type CSPA EAC HGPA MCLA ALSAD KMSAD SLSAD
λ
IsoLetters
image %exp 92.9 92.9 93.6 92.9 92.9 92.9 85.7
c
∆φ (NMI) 10.7 37.4 11.2 14.3 10.7 9.7 20.1
λ speech %exp 96.4 92.9 95 95.7 85.7 92.9 92.9
c ∆φ (NMI) 81.1 177.7 56.5 70.7 54.3 65.9 155.4
λ
CAL500
audio %exp 7.1 10.7 30.7 2.1 3.6 5 25
c ∆φ (NMI) -26 -21.7 -7.3 -31.4 -28.7 -29.4 -11.2
λ text %exp 100 17.9 85 79.3 96.4 93.6 82.1
c
∆φ (NMI) 19.9 -12.3 11.8 13.8 22.2 18.7 23.4
λ
InternetAds
object %exp 64.3 35.7 93.6 62.1 64.3 59.3 71.4
c ∆φ (NMI) 80 234 1616 348 53833 1454 1270
λ collateral %exp 67.9 50 78.6 73.6 82.1 64.3 78.6
c ∆φ (NMI) 1690 160 -10 910 3750 200660 1030
λ
Corel
image %exp 85.7 28.6 42.9 65.7 60.7 61.4 53.6
c
∆φ (NMI) -2.5 -0.8 96.3 12.9 -5.9 -5.7 -6.7
λ text %exp 89.3 96.4 88.6 91.4 96.4 96.4 96.5
c
∆φ (NMI) 142.9 149.9 129.9 165.8 169.6 151.7 192
150
Table 5.5: Evaluation of the multimodal consensus clusterings with respect to their unimodal counterparts, across the four multimedia
data collections and the seven consensus functions. The symbol %exp denotes the percentage of experiments in which the multimodal
consensus clustering is superior to the unimodal consensus clusterings, and ∆φ (NMI) stands for the relative percentage φ (NMI) difference
of the former wrt the latter.