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Domain-General Crowd Counting in Unseen Scenarios

AAAI 2023 · Label-efficient and robust learning › Domain adaptation and generalization · approach: Optimization-based domain generalization · 44 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use the proposed domain-general method instead of DG-MANCrowd counting trained on SHA or SHB · SHA→SHB, SHA→QNRF, SHB→SHA, SHB→QNRFMAE: 17.3 -> 12.6; 129.1 -> 119.4; 130.7 -> 121.8; 182.4 -> 179.1Helped
Use the proposed domain-general method instead of DG-MANCrowd counting trained on SHA or SHB · SHA→SHB, SHA→QNRF, SHB→SHA, SHB→QNRFMSE: 28.7 -> 24.6; 238.2 -> 216.6; 225.1 -> 203.1; 325.8 -> 316.2Helped
Add MLDG meta-learning to the baseline (ablation)Baseline crowd counter · SHA→SHBMAE: 22.0 -> 17.1Helped
Add the domain-invariant branch and its reconstruction loss (ablation)+MLDG · SHA→SHBMAE: 17.1 -> 13.6Helped
Add the domain-specific branch and orthogonal loss (ablation)+DI-B · SHA→SHBMAE: 13.6 -> 12.6Helped
Add feature reconstruction loss (ablation)Full method · SHA→SHB, SHA→QNRF, SHB→SHA, SHB→QNRFMAE: 15.4 -> 12.6; 132.8 -> 119.4; 175.6 -> 121.8; 266.9 -> 179.1Helped
Add feature orthogonal loss (ablation)Full method · SHA→SHB, SHA→QNRF, SHB→SHA, SHB→QNRFMAE: 17.8 -> 12.6; 132.2 -> 119.4; 148.6 -> 121.8; 219.8 -> 179.1Helped
Add hard predicted region reinforcement (ablation)Full method · SHA→SHB, SHA→QNRF, SHB→SHA, SHB→QNRFMAE: 13.4 -> 12.6; 124.0 -> 119.4; 127.8 -> 121.8; 189.3 -> 179.1Helped
Dynamically refine sub-domain assignments rather than cluster once (ablation)Full method · SHA→SHB, SHA→QNRF, SHB→SHA, SHB→QNRFMAE: 14.0 -> 12.6; 125.6 -> 119.4; 128.3 -> 121.8; 198.8 -> 179.1Helped
Use base feature f for dynamic sub-domain division instead of z (ablation)Full method · SHA→SHBMAE: 15.4 -> 12.6Helped
Use re-encoded invariant feature tilde f for dynamic sub-domain division instead of z (ablation)Full method · SHA→SHBMAE: 21.4 -> 12.6Helped
Use average re-encoded domain-specific feature tilde z for clustering instead of z (ablation)Full method · SHA→SHBMAE: 16.5 -> 12.6Helped

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