We consider the two related problems of detecting if an example is misclassified or out-of-distribution. We present a simple baseline that utilizes probabilities from softmax distributions. Correctly classified examples tend to have greater maximum softmax probabilities than erroneously classified and out-of-distribution examples, allowing for their detection. We assess performance by defining several tasks in computer vision, natural language processing, and automatic speech recognition, showing the effectiveness of this baseline across all. We then show the baseline can sometimes be surpassed, demonstrating the room for future research on these underexplored detection tasks.
- Pub Date:
- October 2016
- Computer Science - Neural and Evolutionary Computing;
- Computer Science - Computer Vision and Pattern Recognition;
- Computer Science - Machine Learning
- Published as a conference paper at ICLR 2017. 1 Figure in 1 Appendix. Minor changes from the previous version