Minimal Sufficient Views: A DNN model making predictions with more evidence has higher accuracy

Fuente: arXiv
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Autori principali: Kawano, Keisuke, Kutsuna, Takuro, Sano, Keisuke
Natura: Preprint
Pubblicazione: 2024
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author Kawano, Keisuke
Kutsuna, Takuro
Sano, Keisuke
author_facet Kawano, Keisuke
Kutsuna, Takuro
Sano, Keisuke
contents Deep neural networks (DNNs) exhibit high performance in image recognition; however, the reasons for their strong generalization abilities remain unclear. A plausible hypothesis is that DNNs achieve robust and accurate predictions by identifying multiple pieces of evidence from images. Thus, to test this hypothesis, this study proposed minimal sufficient views (MSVs). MSVs is defined as a set of minimal regions within an input image that are sufficient to preserve the prediction of DNNs, thus representing the evidence discovered by the DNN. We empirically demonstrated a strong correlation between the number of MSVs (i.e., the number of pieces of evidence) and the generalization performance of the DNN models. Remarkably, this correlation was found to hold within a single DNN as well as between different DNNs, including convolutional and transformer models. This suggested that a DNN model that makes its prediction based on more evidence has a higher generalization performance. We proposed a metric based on MSVs for DNN model selection that did not require label information. Consequently, we empirically showed that the proposed metric was less dependent on the degree of overfitting, rendering it a more reliable indicator of model performance than existing metrics, such as average confidence.
format Preprint
id arxiv_https___arxiv_org_abs_2402_01095
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Minimal Sufficient Views: A DNN model making predictions with more evidence has higher accuracy
Kawano, Keisuke
Kutsuna, Takuro
Sano, Keisuke
Machine Learning
Artificial Intelligence
Computer Vision and Pattern Recognition
Deep neural networks (DNNs) exhibit high performance in image recognition; however, the reasons for their strong generalization abilities remain unclear. A plausible hypothesis is that DNNs achieve robust and accurate predictions by identifying multiple pieces of evidence from images. Thus, to test this hypothesis, this study proposed minimal sufficient views (MSVs). MSVs is defined as a set of minimal regions within an input image that are sufficient to preserve the prediction of DNNs, thus representing the evidence discovered by the DNN. We empirically demonstrated a strong correlation between the number of MSVs (i.e., the number of pieces of evidence) and the generalization performance of the DNN models. Remarkably, this correlation was found to hold within a single DNN as well as between different DNNs, including convolutional and transformer models. This suggested that a DNN model that makes its prediction based on more evidence has a higher generalization performance. We proposed a metric based on MSVs for DNN model selection that did not require label information. Consequently, we empirically showed that the proposed metric was less dependent on the degree of overfitting, rendering it a more reliable indicator of model performance than existing metrics, such as average confidence.
title Minimal Sufficient Views: A DNN model making predictions with more evidence has higher accuracy
topic Machine Learning
Artificial Intelligence
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2402.01095