Table 4 Example of an unweighted term-document matrix (TDM) with outcomes
From: Machine learning in medicine: a practical introduction
| Â | Â | Features | Outcome | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
documentID | service | a | bad | doctor | great | kind | satisfied | service | unhappy | Class |
1 | 001312 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 |
2 | 001345 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
3 | 001312 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |
. | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
. | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
. | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
699 | 001345 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |