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- W4380479929 abstract "Feature-based Knowledge Distillation (FKD) is a method for guiding the activations at the intermediate layers of a Convolutional Neural NetworkConvolutional Neural Network (CNN) (CNN) during training. It has recently gained significant popularity as either a standalone or complementary method of Knowledge Distillation (KD)Knowledge distillation. Most techniques however, handle the teacher-to-student knowledge transfer in a statistical or probabilistic manner. In this chapter, we propose a family of efficient loss functions that aim to transfer the geometry of activations from intermediate layers of a teacher CNNConvolutional Neural Network (CNN) to the activations of a student CNN model at matching spatial resolutions through a novel Feature-based Knowledge Distillation (FKD) method. We discuss the challenges of geometric methods, provide connections with manifold-to-manifold comparison and regularization techniques, and draw some interesting connections to the field of random graphs. Experiments on benchmark tasks show evidence that by focusing on replicating the feature relationships only across local neighborhoods, results in better performance. Furthermore, the definition of neighborhoods important for sufficient performance, with neighborhoods defined over parsimonious graphs such as the Minimal Spanning Tree achieving better results that standard kNN rule. Finally, we present a case study on data-free Knowledge Distillation in the field of offline handwritten signature verification. The case study demonstrates a way to harness knowledge from an expert CNNConvolutional Neural Network (CNN) model to enhance the training of a new model with different architecture, using only external (task-irrelevant) data. Results indicate that both geometric FKD and its combination with standard KDKnowledge distillation techniques can effectively create new models with better performance than the expert teacher model." @default.
- W4380479929 created "2023-06-14" @default.
- W4380479929 creator A5008187790 @default.
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- W4380479929 date "2023-01-01" @default.
- W4380479929 modified "2023-10-16" @default.
- W4380479929 title "A Geometric Perspective on Feature-Based Distillation" @default.
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- W4380479929 doi "https://doi.org/10.1007/978-3-031-32095-8_2" @default.
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