Table 1 Categorisation of feature selection methods applied to the single-cell field
| Â | Category | Methods | Transcriptomics | Epigenomics | Surface proteins | Imaging | Multimodal |
|---|---|---|---|---|---|---|---|
Classic | Filter | Univariate | (53–60) | (61–64) |  | (65, 122) |  |
Multivariate | (66, 67) | Â | Â | Â | Â | ||
Wrapper | Greedy | (68) | Â | (69, 70) | Â | Â | |
Nature-inspired | (71, 72) | Â | (73) | Â | Â | ||
Others | (74, 75) | Â | Â | (76) | Â | ||
Embedded | Tree-based | (77) | (81) | (82) | (83, 84) | Â | |
Shrinkage | (78, 79) | (62, 81) | (85) | Â | (86) | ||
Others | (80) | Â | Â | (83) | Â | ||
Advanced | Ensemble | Â | (87) | Â | Â | Â | Â |
Hybrid |  | (88–91) | (90) |  |  |  | |
Deep learning | Â | (49, 92) | Â | Â | (93) | Â |