- Zero-shot learning is being able to solve a task despite not having received any training examples of that task. For a concrete example, imagine recognizing a category of object in photos without ever having seen a photo of that kind of object before. If you’ve read a very detailed description of a cat, you might be able to tell what a cat is in a photograph the first time you see it.
- We consider the problem of zero-shot learning, where the goal is to learn a classifier
f : X → Y that must predict novel values of Y that were omitted from
the training set. To achieve this, we define the notion of a semantic output code
classifier (SOC) which utilizes a knowledge base of semantic properties of Y to
extrapolate to novel classes
https://www.quora.com/What-is-zero-shot-learning
http://www.cs.cmu.edu/afs/cs/project/theo-73/www/papers/zero-shot-learning.pdf

本文探讨了零样本学习的概念,即在没有特定任务训练样本的情况下解决新任务的能力。通过定义语义输出代码分类器(SOC),利用关于输出类别语义属性的知识库来预测训练集中未出现过的新型类别。
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