OpenIncrement: A Unified Framework for Open Set Recognition and Deep
  Class-Incremental Learning
Jiawen Xu Claas Grohnfeldt Odej Kao
In most works on deep incremental learning research, it is assumed that novel
samples are pre-identified for neural network retraining. However, practical
deep classifiers often misidentify these samples, leading to erroneous
predictions. Such misclassifications can degrade model performance. Techniques
like open set recognition offer a means to detect these novel samples,
representing a significant area in the machine learning domain.
  In this paper, we introduce a deep class-incremental learning framework
integrated with open set recognition. Our approach refines class-incrementally
learned features to adapt them for distance-based open set recognition.
Experimental results validate that our method outperforms state-of-the-art
incremental learning techniques and exhibits superior performance in open set
recognition compared to baseline methods.