Research map / Probabilistic and scientific modeling / Causal discovery
GP CaKe: Effective brain connectivity with causal kernels
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| Use GP CaKe instead of VAR or ridge-regularized VAR | effective connectivity kernel recovery · two-node and three-node simulated networks | MSE | Helped |
| Add ridge regularization to VAR (ablation) | VAR · two-node and three-node simulated networks | MSE | Helped |
| Overestimate temporal smoothness (ablation) | GP CaKe · simulated two-node network | kernel estimation accuracy | Hurt |
| Underestimate temporal smoothness (ablation) | GP CaKe · simulated two-node network | kernel estimate variance | Hurt |
| Overestimate the noise level (ablation) | GP CaKe · simulated two-node network | kernel estimation accuracy | Hurt |
| Overestimate temporal localization (ablation) | GP CaKe · simulated two-node network | duration of estimated causal influence | Hurt |
| Use a fully disconnected estimate instead of GP CaKe or VAR at low connection strength | effective connectivity kernel recovery · simulated networks with low connection strength | MSE | Helped |
| Use GP CaKe or VAR instead of a fully disconnected estimate | effective connectivity kernel recovery · simulated networks | correlation | Helped |
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