Research map / Learning theory and algorithms / Prediction and decision losses
Optimizing Mode Connectivity via Neuron Alignment
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Measured effects reported in the paper
| What was changed | Where | Measured | Effect |
|---|---|---|---|
| align neurons of second endpoint (correlation of post-activations) before learning Bezier curve | mode connecting curve, TinyTen · Tiny ImageNet test | min accuracy along curve: 30.0 -> 33.7 | Helped |
| add neuron alignment before curve finding | mode connecting curve, ResNet32 · CIFAR10 test | min accuracy along curve: 89.1 -> 92.2 | Helped |
| add neuron alignment before curve finding | mode connecting curve, GoogLeNet · CIFAR100 test | min accuracy along curve: 69.8 -> 72.9 | Helped |
| add neuron alignment before curve finding | mode connecting curve, GoogLeNet · CIFAR10 test | avg accuracy along curve: 93.3 -> 93.4 | No clear effect |
| add neuron alignment before curve finding | mode connecting curve, TinyTen · Tiny ImageNet test | avg accuracy along curve: 32.5 -> 34.4 | Helped |
| run PAM from aligned permutation instead of plain alignment (ablation) | Aligned curve, TinyTen · CIFAR100 test | avg accuracy along curve: 58.7 -> 58.8 | No clear effect |
| run PAM from identity initialization instead of alignment (ablation) | curve finding, TinyTen · CIFAR100 test | avg accuracy along curve: 58.7 -> 57.3 | Hurt |
| run PAM from identity init versus no permutation optimization (ablation) | Unaligned curve, TinyTen · CIFAR10 test | min accuracy along curve: 82.8 -> 84.0 | Helped |
| align post-activations by correlation instead of pre-activations / L2 distance (ablation) | alignment technique, TinyTen · CIFAR10/CIFAR100/Tiny ImageNet | test accuracy along curve | Helped |
| add neuron alignment when connecting adversarially robust models | robust curve, ResNet32 CIFAR100 · CIFAR100 clean and robust accuracy | midpoint accuracy vs endpoints: +5.3% clean, +1.3% robust | Helped |
| add neuron alignment | curve training speed, TinyTen CIFAR100 · CIFAR100 train accuracy | epochs to converge: 100 epochs less | Helped |
Closest papers by meaning
- Generalized Linear Mode Connectivity for Transformers (NeurIPS 2025 · similarity 0.92)
- Understanding Mode Connectivity via Parameter Space Symmetry (ICML 2025 · similarity 0.90)
- On Linear Mode Connectivity of Mixture-of-Experts Architectures (NeurIPS 2025 · similarity 0.88)
- Input Space Mode Connectivity in Deep Neural Networks (ICLR 2025 · similarity 0.87)
- Exploring and Exploiting the Asymmetric Valley of Deep Neural Networks (NeurIPS 2024 · similarity 0.87)
- The Empirical Impact of Neural Parameter Symmetries, or Lack Thereof (NeurIPS 2024 · similarity 0.87)
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