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Learning to Propagate for Graph Meta-Learning

Neural Information Processing Systems

Inmost meta-learning methods, tasks areimplicitly related bysharing parameters oroptimizer. We develop a novel meta-learner of this type for prototype based classification, in which a prototype is generated for each class, such that the nearest neighbor search among the prototypes produces an accurate classification.



Supplementary: CharacterizingGeneralizationunder Out-Of-DistributionShiftsinDeepMetricLearning

Neural Information Processing Systems

Subsequently, we select train-test splits from the same iteration steps. These settings are used throughout our study. For the few-shot experiments, the same pipeline parameters were utilized with changes noted in the respectivesection. However,thefactthatFIDscores are relatively close to another despite large semantic differences between datasets may indicate that FID based on our utilised FID estimator (Sec. Beyond these limits, generic representations learned byself-supervised learning may offerbetter zero-shot generalization,asalsodiscussedonSec.




SupplementaryMaterialsFor: " DomainAdaptation with InvariantRepresentationLearning: What TransformationstoLearn? "

Neural Information Processing Systems

Furthermore, letφ: X Z be an encoder s.t. Then, there is no functionφ s.t. Let there be a subset in the invariant spaceB Z, and suppose that we have marginal invariance inthelatent space:PS(φ(X) B) = PT(φ(X) B), B. Define thepre-image ofB as: A={a X:φ(a) B}. Let A X be a region s.t. We followed the procedure in [2], and used a mixture kernel function ofq RBF kernels: κ(z1,z2) = Pq i=1ηiexp{ ||z1 z2||2}/σ2i, where σ2i is the kernel width of the i-th kernel, and ηi is a mixing weight which we set to1/q.