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Register a new userClassification of hierarchical text using geometric deep learning: the case of clinical trials corpus
تصنيف النص الهرمي باستخدام التعلم العميق الهندسي: حالة التجارب السريرية Corpus
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نحن نعتبر التمثيل الهرمي للوثائق كرسوم بيانية واستخدام التعلم العميق الهندسي لتصنيفها إلى فئات مختلفة.في حين أن الشبكات العصبية الرسم البيانية يمكن أن تتعامل مع الهيكل المتغير بشكل فعال للمستندات التسلسل الهرمية باستخدام عمليات تمرير رسالة ثابتة للصبغ، فإننا نوضح أنه يمكننا الحصول على تحسينات إضافية على الأداء باستخدام عملية تجمع الرسوم البيانية الانتقائية المقترحة التي تنشأ من حقيقة أن بعض أجزاء التسلسل الهرمي ثابتةعبر وثائق مختلفة.طبقنا نموذجنا لتصنيف بروتوكولات التجريبية السريري (CT) إلى فئات كاملة وإنهاءها.نستخدم حقيبة من الكلمات القائمة على الأكياس، بالإضافة إلى تضيير مقرها المحولات مسبقا لفصل العقد الرسم البياني، وتحقيق F1 Squareesaround 0.85 على سجل CT واسع النطاق للجمهور حول بروتوكولات 360k.نوضح كذلك كيف يمكن للتجمع الانتقائي إضافة رؤى في التنبؤ بحالة إنهاء CT.نحن نجعل التعليمات البرمجية المصدرية والشقاقات DataSet يمكن الوصول إليها.
We consider the hierarchical representation of documents as graphs and use geometric deep learning to classify them into different categories. While graph neural networks can efficiently handle the variable structure of hierarchical documents using the permutation invariant message passing operations, we show that we can gain extra performance improvements using our proposed selective graph pooling operation that arises from the fact that some parts of the hierarchy are invariable across different documents. We applied our model to classify clinical trial (CT) protocols into completed and terminated categories. We use bag-of-words based, as well as pre-trained transformer-based embeddings to featurize the graph nodes, achieving f1-scoresaround 0.85 on a publicly available large scale CT registry of around 360K protocols. We further demonstrate how the selective pooling can add insights into the CT termination status prediction. We make the source code and dataset splits accessible.
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