Enhancing Cross-Dataset Performance of Distracted Driving Detection With Score-Softmax Classifier
CoRR(2023)
摘要
Deep neural networks enable real-time monitoring of in-vehicle driver,
facilitating the timely prediction of distractions, fatigue, and potential
hazards. This technology is now integral to intelligent transportation systems.
Recent research has exposed unreliable cross-dataset end-to-end driver behavior
recognition due to overfitting, often referred to as “shortcut learning",
resulting from limited data samples. In this paper, we introduce the
Score-Softmax classifier, which addresses this issue by enhancing inter-class
independence and Intra-class uncertainty. Motivated by human rating patterns,
we designed a two-dimensional supervisory matrix based on marginal Gaussian
distributions to train the classifier. Gaussian distributions help amplify
intra-class uncertainty while ensuring the Score-Softmax classifier learns
accurate knowledge. Furthermore, leveraging the summation of independent
Gaussian distributed random variables, we introduced a multi-channel
information fusion method. This strategy effectively resolves the
multi-information fusion challenge for the Score-Softmax classifier.
Concurrently, we substantiate the necessity of transfer learning and
multi-dataset combination. We conducted cross-dataset experiments using the
SFD, AUCDD-V1, and 100-Driver datasets, demonstrating that Score-Softmax
improves cross-dataset performance without modifying the model architecture.
This provides a new approach for enhancing neural network generalization.
Additionally, our information fusion approach outperforms traditional methods.
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关键词
distracted driving detection,classifier,cross-dataset,score-softmax
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