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Title |
Food Detection by Fine-Tuning Pre-trained Convolutional Neural Network Using Noisy Labels |
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Author |
Shroog Alshomrani, Lina Aljoudi, Banan Aljabri, Sarah Al-Shareef |
| Citation |
Vol. 21 No. 7 pp. 182-190 |
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Abstract |
Deep learning is an advanced technology for large-scale data analysis, with numerous promising cases like image processing, object detection and significantly more. It becomes customarily to use transfer learning and fine-tune a pre-trained CNN model for most image recognition tasks. Having people taking photos and tag themselves provides a valuable resource of in-data. However, these tags and labels might be noisy as people who annotate these images might not be experts. This paper aims to explore the impact of noisy labels on fine-tuning pre-trained CNN models. Such effect is measured on a food recognition task using Food101 as a benchmark. Four pre-trained CNN models are included in this study: InceptionV3, VGG19, MobileNetV2 and DenseNet121. Symmetric label noise will be added with different ratios. In all cases, models based on DenseNet121 outperformed the other models. When noisy labels were introduced to the data, the performance of all models degraded almost linearly with the amount of added noise. |
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Keywords |
deep learning, food image detection, symmetric label noise, convolutional neural networks, transfer learning. |
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