In this chapter, we are going to discuss Out-of-Distribution (OOD) detection, the problem of identifying “unknown” samples that do not belong to the DNN’s training distribution. We will first explain in detail what OOD detection is and why it matters. Then we introduce several representative research works characterizing two important directions, along with some recent, new explorations.

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Out-of-Distribution Detection

  • Yiran Chen,
  • Hai Li,
  • Huanrui Yang

摘要

In this chapter, we are going to discuss Out-of-Distribution (OOD) detection, the problem of identifying “unknown” samples that do not belong to the DNN’s training distribution. We will first explain in detail what OOD detection is and why it matters. Then we introduce several representative research works characterizing two important directions, along with some recent, new explorations.