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Register a new userEffective Convolutional Attention Network for Multi-label Clinical Document Classification
شبكة الاهتمام التفاعلي الفعال لتصنيف المستندات السريرية متعددة الملصقات
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يمكن أن تكون مشاكل تصنيف المستندات متعددة الملصقات (MLDC) تحديا، خاصة بالنسبة للمستندات الطويلة ذات مجموعة علامات كبيرة وتوزيع ذيل طويل على الملصقات. في هذه الورقة، نقدم شبكة اهتمام نفعية فعالة لمشكلة MLDC مع التركيز على تنبؤ الكود الطبي من الوثائق السريرية. ابتكاراتنا هي ثلاثة أضعاف: (1) نستخدم تشفير عميق يستند إلى الارتفاع مع شبكات الضغط والإثارة والشبكات المتبقية لتجميع المعلومات عبر الوثيقة وتعلم تمثيلات وثيقة ذات مغزى تغطي نطاقات مختلفة من النصوص؛ (2) نستكشف الانتباه متعدد الطبقات ومجموعة إيلاء الاهتمام لاستخراج الميزات الأكثر تفاعيمية من هذه التمثيلات متعددة النطاق؛ (3) نجمع بين خسارة انتروبيا الصليب الثنائية وفقدان البؤري لتحسين الأداء للعلامات النادرة. نحن نركز دراسة تقييمنا على MIMIC-III، مجموعة بيانات واستخدامها على نطاق واسع في المجال الطبي. تتفوق نماذجنا على العمل السابق على الترميز الطبي وتحقيق نتائج جديدة من الفنون الجديدة على مقاييس متعددة. كما نوضح أيضا الطبيعة المستقلة للغة لنهجنا من خلال تطبيقها على مجموعة بيانات غير الإنجليزية. يتفوق النموذج الخاص بنا على أفضل نموذج مسبق ونموذج محول متعدد اللغات من هامش جوهري.
Multi-label document classification (MLDC) problems can be challenging, especially for long documents with a large label set and a long-tail distribution over labels. In this paper, we present an effective convolutional attention network for the MLDC problem with a focus on medical code prediction from clinical documents. Our innovations are three-fold: (1) we utilize a deep convolution-based encoder with the squeeze-and-excitation networks and residual networks to aggregate the information across the document and learn meaningful document representations that cover different ranges of texts; (2) we explore multi-layer and sum-pooling attention to extract the most informative features from these multi-scale representations; (3) we combine binary cross entropy loss and focal loss to improve performance for rare labels. We focus our evaluation study on MIMIC-III, a widely used dataset in the medical domain. Our models outperform prior work on medical coding and achieve new state-of-the-art results on multiple metrics. We also demonstrate the language independent nature of our approach by applying it to two non-English datasets. Our model outperforms prior best model and a multilingual Transformer model by a substantial margin.
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