Table 1.
Summary of the results for LTE.
| Experiment: LTE. A2, NO. (2 sources) | ||||||
|---|---|---|---|---|---|---|
| Random | K-means | FCM | PCA | FastICA | NMF (als) | |
| euc | A2: 0.98 | A2: 0.97 | A2: 0.98 | A2: 0.91 | A2: 0.98 | A2: 0.97 |
| NO: 0.96 | NO: 0.99 | NO: 0.99 | NO: 0.98 | NO: 0.87 | NO: 0.95 | |
| als | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 |
| NO: 0.98 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 0.95 | NO: 0.96 | |
| alspg | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 |
| NO: 0.96 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 0.95 | NO: 0.96 | |
| alsobs | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 | A2: 0.97 |
| NO: 0.96 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 0.95 | NO: 0.99 | |
| convex | A2: 1.00 | A2: 1.00 | A2: 1.00 | A2: 0.99 | A2: 1.00 | A2: 1.00 |
| NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | |
| Experiment: LTE. A2, ME, NO. (3 sources) | ||||||
| Random | K-means | FCM | PCA | FastICA | NMF (als) | |
| euc | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.88 | A2: 0.94 | A2: 0.94 |
| ME: 0.85 | ME: 0.85 | ME: 0.85 | ME: 0.78 | ME: 0.86 | ME: 0.85 | |
| NO: 0.95 | NO: 1.00 | NO: 0.99 | NO: 0.90 | NO: 0.92 | NO: 0.93 | |
| als | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 |
| ME: 0.85 | ME: 0.84 | ME: 0.84 | ME: 0.85 | ME: 0.85 | ME: 0.85 | |
| NO: 0.92 | NO: 0.99 | NO: 0.99 | NO: 0.92 | NO: 0.91 | NO: 0.91 | |
| alspg | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 |
| ME: 0.85 | ME: 0.85 | ME: 0.85 | ME: 0.85 | ME: 0.85 | ME: 0.85 | |
| NO: 0.99 | NO: 0.99 | NO: 0.99 | NO: 0.95 | NO: 0.93 | NO: 0.92 | |
| alsobs | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 | A2: 0.94 |
| ME: 0.85 | ME: 0.85 | ME: 0.85 | ME: 0.85 | ME: 0.85 | ME: 0.85 | |
| NO: 0.96 | NO: 0.99 | NO: 0.99 | NO: 0.95 | NO: 0.95 | NO: 0.95 | |
| convex | A2: 0.99 | A2: 0.99 | A2: 0.98 | A2: 0.98 | A2: 0.98 | A2: 0.98 |
| ME: 0.88 | ME: 0.88 | ME: 0.90 | ME: 0.86 | ME: 0.87 | ME: 0.87 | |
| NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | |
| Experiment: LTE. A2, GL, NO. (3 sources) | ||||||
| Random | K-means | FCM | PCA | FastICA | NMF (als) | |
| euc | A2: 0.91 | A2: 0.91 | A2: 0.91 | A2: 0.87 | A2: 0.92 | A2: 0.91 |
| GL: 0.75 | GL: 0.76 | GL: 0.75 | GL: 0.92 | GL: 0.78 | GL: 0.76 | |
| NO: 0.99 | NO: 0.99 | NO: 0.99 | NO: 0.96 | NO: 0.94 | NO: 0.99 | |
| als | A2: 0.92 | A2: 0.92 | A2: 0.92 | A2: 0.92 | A2: 0.92 | A2: 0.92 |
| GL: 0.76 | GL: 0.76 | GL: 0.76 | GL: 0.76 | GL: 0.76 | GL: 0.76 | |
| NO: 0.95 | NO: 0.99 | NO: 0.99 | NO: 0.99 | NO: 0.95 | NO: 0.98 | |
| alspg | A2: 0.91 | A2: 0.91 | A2: 0.91 | A2: 0.91 | A2: 0.91 | A2: 0.91 |
| GL: 0.75 | GL: 0.75 | GL: 0.75 | GL: 0.75 | GL: 0.75 | GL: 0.75 | |
| NO: 0.99 | NO: 0.99 | NO: 0.99 | NO: 0.99 | NO: 0.97 | NO: 0.96 | |
| alsobs | A2: 0.91 | A2: 0.91 | A2: 0.91 | A2: 0.91 | A2: 0.91 | A2: 0.91 |
| GL: 0.75 | GL: 0.75 | GL: 0.75 | GL: 0.75 | GL: 0.75 | GL: 0.75 | |
| NO: 0.99 | NO: 0.99 | NO: 0.99 | NO: 0.99 | NO: 0.98 | NO: 0.99 | |
| convex | A2: 0.94 | A2: 0.97 | A2: 0.95 | A2: 0.94 | A2: 0.96 | A2: 0.96 |
| GL: 0.80 | GL: 0.73 | GL: 0.77 | GL: 0.81 | GL: 0.75 | GL: 0.74 | |
| NO: 0.98 | NO: 1.00 | NO: 1.00 | NO: 0.99 | NO: 1.00 | NO: 1.00 | |
| Experiment: LTE. A2, MM, NO. (3 sources) | ||||||
| Random | K-means | FCM | PCA | FastICA | NMF (als) | |
| euc | A2: 0.96 | A2: 0.88 | A2: 0.89 | A2: 0.97 | A2: 0.88 | A2: 0.88 |
| MM: 0.92 | MM: 0.97 | MM: 0.97 | MM: 0.91 | MM: 0.99 | MM: 0.97 | |
| NO: 0.95 | NO: 0.98 | NO: 0.98 | NO: 0.72 | NO: 0.89 | NO: 0.98 | |
| als | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 |
| MM: 0.97 | MM: 0.97 | MM: 0.97 | MM: 0.97 | MM: 0.97 | MM: 0.97 | |
| NO: 0.98 | NO: 0.97 | NO: 0.97 | NO: 0.98 | NO: 0.97 | NO: 0.98 | |
| alspg | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 |
| MM: 0.97 | MM: 0.97 | MM: 0.97 | MM: 0.97 | MM: 0.97 | MM: 0.97 | |
| NO: 0.97 | NO: 0.98 | NO: 0.98 | NO: 0.98 | NO: 0.96 | NO: 0.98 | |
| alsobs | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 | A2: 0.88 |
| MM: 0.98 | MM: 0.98 | MM: 0.97 | MM: 0.97 | MM: 0.97 | MM: 0.98 | |
| NO: 0.98 | NO: 0.98 | NO: 0.98 | NO: 0.98 | NO: 0.97 | NO: 0.98 | |
| convex | A2: 0.98 | A2: 0.99 | A2: 0.98 | A2: 0.98 | A2: 0.99 | A2: 0.88 |
| MM: 1.00 | MM: 0.99 | MM: 0.99 | MM: 0.99 | MM: 1.00 | MM: 0.98 | |
| NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 1.00 | NO: 0.99 | |
Summary of the correlation values for the sources most highly correlating with each type of tissue as expressed by its mean spectrum, for different diagnostic problems at LTE, and for all the NMF methods and initialisation conditions in the study. The diagnostic problems are: A2, NO; A2, ME, NO; A2, GL, NO; and A2, MM, NO