End-to-End Training of CNN Ensembles for Person Re-Identification
This addresses overfitting in person re-identification for computer vision applications, but it is incremental as it builds on existing ensemble and DenseNet techniques.
The paper tackles overfitting in person re-identification models by proposing an end-to-end ensemble method using a single DenseNet, achieving state-of-the-art results with noticeable improvements on small datasets.
We propose an end-to-end ensemble method for person re-identification (ReID) to address the problem of overfitting in discriminative models. These models are known to converge easily, but they are biased to the training data in general and may produce a high model variance, which is known as overfitting. The ReID task is more prone to this problem due to the large discrepancy between training and test distributions. To address this problem, our proposed ensemble learning framework produces several diverse and accurate base learners in a single DenseNet. Since most of the costly dense blocks are shared, our method is computationally efficient, which makes it favorable compared to the conventional ensemble models. Experiments on several benchmark datasets demonstrate that our method achieves state-of-the-art results. Noticeable performance improvements, especially on relatively small datasets, indicate that the proposed method deals with the overfitting problem effectively.