TABLE 2.
Constrained CCA application
| CCA variant | Modality 1 | Modality 2 | Reference |
|---|---|---|---|
| Sparse CCA (L1‐norm penalty) | Brain imaging data | Clinical/behavioral/neuropsychological measurements | Badea et al. (2019); Lee, Moser, Ing, Doucet, and Frangou (2019); Moser et al. (2018); Pustina, Avants, Faseyitan, Medaglia, and Coslett (2018); Thye and Mirman (2018); Vatansever et al. (2017); Wang et al. (2018); Xia et al. (2018) |
| Brain imaging data | Brain imaging data | Avants, Cook, Ungar, Gee, and Grossman (2010); Deligianni, Carmichael, Zhang, Clark, and Clayden (2016); Deligianni, Centeno, Carmichael, and Clayden (2014); Duda, Detre, Kim, Gee, and Avants (2013); Jang et al. (2017); Kang, Kwak, Yoon, and Lee (2018); Rosa et al. (2015); Sintini, Schwarz, Martin et al. (2019); Sintini, Schwarz, Senjem, et al. (2019) | |
| Brain imaging data | Genetic information | Du et al. (2016); Du, Liu, Yao, et al. (2019); Du, Liu, Zhu, et al. (2019); Grellmann et al. (2015); Gossmann, Zille, Calhoun, and Wang (2018); McMillan et al. (2014); Sheng et al. (2014); Szefer, Lu, Nathoo, Beg, and Graham (2017); Wan et al. (2011) | |
| Genetic information | Clinical/behavioral/measurements | Leonenko et al. (2018) | |
| Structure‐sparse CCA | Brain imaging data | Brain imaging data | Lisowska and Rekik (2019); Mohammadi‐Nejad, Hossein‐Zadeh, and Soltanian‐Zadeh (2017) |
| Brain imaging data | Genetic information | Du et al. (2014, 2015, 2016a, 2016b; Du et al. (2017); Kim et al. (2019); Liu et al. (2017; Lin, Calhoun, and Wang, 2014; Yan et al. (2014 | |
| Discriminant sparse CCA | Brain imaging data | Genetic information/blood data | Fang et al. (2016); Wang, Shao, Hao, Shen, and Zhang (2019); Yan, Risacher, Nho, Saykin, and Shen (2017) |
| Constrained CCA | Brain imaging data | Clinical/behavioral/neuropsychological measurements | Grosenick et al. (2019); Dashtestani et al. (2019) |
| Brain imaging data | Task design | Cordes, Jin, Curran, and Nandy, (2012a, 2012b); Dong et al. (2015); Friman, Borga, Lundberg, and Knutsson (2003); Zhuang et al. (2017); Zhuang et al. (2019) | |
| Other constraints in CCA | Longitudinal brain imaging data | Genetic information | Du, Liu, Zhu, et al. (2019) (temporal multitask sparse CCA); Hao et al. (2017) (temporal group sparse CCA); |
Abbreviation: CCA, canonical correlation analysis.