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Learning Latent Representations in Neural Networks for Clustering through Pseudo Supervision and Graph-based Activity Regularization

ICLR 2018 · Label-efficient and robust learning › Recognition and long-tail · approach: Contrastive representation theory · 23 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use the proposed pseudo-supervision and ACOL/GAR approach instead of IMSATUnsupervised clustering · SVHN-testACC: 57.30%(± 3.90) -> 76.80%(± 1.30)Helped
Use the proposed pseudo-supervision and ACOL/GAR approach instead of JULEUnsupervised clustering · USPS-fullACC: 95.00% -> 96.51%(± 0.26)Helped
Use the proposed pseudo-supervision and ACOL/GAR approach instead of IMSATUnsupervised clustering · MNIST-testACC: 98.40%(± 0.40) -> 98.32%(± 0.08)No clear effect
Use four rotation transformations instead of all eight (ablation)Our approach · MNIST-testACC: 98.32%(± 0.08) -> 97.80%(± 0.18)Hurt
Use only T1 and T2 rotations instead of all eight transformations (ablation)Our approach · MNIST-testACC: 98.32%(± 0.08) -> 72.52%(± 6.20)Hurt
Use only T1 and T3 rotations instead of all eight transformations (ablation)Our approach · MNIST-testACC: 98.32%(± 0.08) -> 96.84%(± 0.29)Hurt
Use T1 and T3 rather than T1 and T2 (ablation)Our approach · MNIST-testACC: 72.52%(± 6.20) -> 96.84%(± 0.29)Helped
Cluster the Z representation instead of F (ablation)Our approach · MNIST-testACC: 98.32%(± 0.08) -> 98.16%±(0.14)No clear effect
Use scaling or shearing transformations to make pseudo parent-classes (ablation)Our approach · MNISTclustering qualityHurt
Use translation or random pixel permutation transformations to make pseudo parent-classes (ablation)Our approach · MNISTclustering qualityHurt
Increase the number of rotation-based transformations (ablation)Our approach · MNISTACC: 72.52%(± 6.20) -> 96.84%(± 0.29) -> 97.80%(± 0.18) -> 98.32%(± 0.08)Helped
Reduce F dimensionality up to approximately 1024 (ablation)Our approach · MNISTclustering accuracyNo clear effect

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