Research map / Probabilistic and scientific modeling / Variational and generative sampling
Approximate Stein Classes for Truncated Density Estimation
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| Replace exact boundary-distance weighting with approximate Stein class built from boundary samples (TKSD) | truncated density estimation · US-border truncated Gaussian | mean l2 estimation error | Helped |
| Approximate boundary-distance function used by TruncSM (instead of exact) on l1 and l2 truncation (ablation) | TruncSM / bd-KSD · Gaussian truncated by l1/l2 balls | mean l2 estimation error | Hurt |
| Use TKSD instead of exact-distance TruncSM/bd-KSD on l2 ball truncation | truncated Gaussian, l2 ball · Gaussian truncated by l2 ball | mean l2 estimation error | Helped |
| Use TKSD on l1 ball truncation versus TruncSM/bd-KSD | truncated Gaussian, l1 ball · Gaussian truncated by l1 ball | mean l2 estimation error | No clear effect |
| Use TKSD instead of exact-distance methods for runtime | truncated Gaussian, l1 ball · Gaussian truncated by l1 ball | runtime | Helped |
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