Appendix

This is the Appendix for "Self-Supervised Learning Disentangled Group Representation as Feature". Table .1 summarizes the abbreviations and the symbols used in the main paper.Abbreviation/Symbol Meaning Abbreviation SSL Self-supervised Learning SL Supervised Learning DCI Disentangle Metric for Informativeness IRS Interventional Robustness Score EXP Explicitness Score MOD Modularity Score LR Logistic Regression GBT Gradient Boosted Trees OOD Out-Of-Distributed Symbol in Theory U Semantic space X V ector space I Image space G Group G ( x) Group orbit w.r .t.G containing the sample x ϕ Image generation process U I φ Visual representation I X f Semantic representation U X m The number of decomposed subgroups Symbol in Algorithm P Partition of dataset P Learned partition through Eq. (3) P Set of partitions used in Eq. (2) N Number of training images θ "Dummy" parameter used by IRM I Image X List of abbreviations and symbols used in the paper. Section A provides the preliminary knowledge about the group theory. Section D presents the additional experimental results. 1 A Preliminaries Groups often arise as transformations of some space, such as a set, vector space, or topological space. The set of clockwise rotations w.r .t. its centroid to retain We say this group of rotations act on the triangle, which is formally defined below.