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Evaluating Transfer Learning and Multiple Instance Learning for Domain-Specific Endoscopic Video Classification
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DOI：10.1007/978-981-95-4100-3_21.png)
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Abstract
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Inflammatory Bowel Disease (IBD) is commonly assessed through endoscopy, but manual interpretation suffers from interobserver variability and limited scalability. Deep learning models offer a path toward standardizing evaluations, yet their effectiveness is constrained by limited task-specific data and the complexity of video-based scoring. Transfer learning from large image datasets like ImageNet is often used to address data scarcity, but such general-purpose features may not align well with medical imagery. This paper investigates the effectiveness of domain-specific pretraining for endoscopic video classification under weak supervision. We apply a multiple instance learning (MIL) framework to classify inflammation status from endoscopy videos using a range of deep learning architectures pretrained on either ImageNet, general medical images, or the domain-specific GastroNet5M dataset. Our findings show that models pretrained on endoscopy-specific data consistently outperform general-purpose models across both internal and external datasets, achieving superior F1 Score and AUC values. These results highlight the importance of domain-aligned feature representations and weakly supervised learning strategies in medical video analysis.
Keywords:
Endoscopy
Inflammatory Bowel Disease
Video Classification
Multiple Instance Learning
Transfer Learning
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Inflammation Detection Using Ensemble Endoscopic Multimodal Assessment in Inflammatory Bowel Disease
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