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Research map / Label-efficient and robust learning / Zero-/few-shot and meta-learning

‘Less Than One’-Shot Learning: Learning N Classes From M < N Samples

AAAI 2021 · Label-efficient and robust learning › Zero-/few-shot and meta-learning · approach: Fine-grained and cross-domain few-shot baselines · 39 citations (OpenAlex)

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Measured effects reported in the paper

What was changedWhereMeasuredEffect
Use probabilistic soft labels on two prototypesSLaPkNN with k=2 · Euclidean spaceclasses separable: two soft-label prototypes; n ∈ [1,∞) classesHelped
Use soft labels rather than hard labels for prototype generationkNN on concentric circles · Concentric circlesprototype requirement: from O(N^2) down to O(1)Helped
Use five soft-label prototypes with SLaPkNN instead of the hard-label 1NN configurationCircle classification · Concentric circlesprototypes required to separate six circles: five soft-label prototypesHelped
Increase k from 1 to 2 (ablation)SLaPkNN decision landscapes · LO-shot configurationsdecision landscapeMixed
Increase k from 2 to 3 (ablation)SLaPkNN decision landscapes · LO-shot configurationsrisk at decision boundariesHurt
Tune prototype positions and labels to control decision boundaries and riskSLaPkNN · LO-shot configurationsrobustness to prototype perturbationsHelped
Use unrestricted soft labels and vary kSLaPkNN · Decision landscapesdecision-boundary configurationsHelped

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