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خبراء DataSet واحد للحصول على سؤال متعدد البيانات
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تم إنشاء العديد من مجموعات البيانات لتدريب نماذج الفهم في القراءة، والسؤال الطبيعي هو ما إذا كان يمكننا دمجها لبناء النماذج التي (1) أداء أفضل على جميع مجموعات بيانات التدريب و (2) تعميم وتحويل أفضل بيانات جديدة إلى مجموعات البيانات الجديدة. عالج العمل المسبق هذا الهدف من خلال تدريب شبكة واحدة في وقت واحد على مجموعات بيانات متعددة، والتي تعمل بشكل جيد في المتوسط ولكنها عرضة للتوزيعات الفرعية المختلفة أو غير الضرورية ويمكن نقلها أسوأ مقارنة بالنماذج المصدر بأكثر تداخل مع DataSet المستهدف. يتمثل نهجنا في نموذج سؤال متعدد البيانات مستجيب مع مجموعة من خبراء DataSet واحد، من خلال تدريب مجموعة من وحدات محول محول خفيفة الوزن وخفيفة الوزن (Houlsby et al.، 2019) التي تشترك في نموذج محول أساسي. نجد أن خبراء مجموعة البيانات متعددة المحولات (صنع) تفوقوا جميع خطوط الأساس لدينا من حيث دقة التوزيع، والأساليب البسيطة القائمة على متوسط المعلمة تؤدي إلى تحسين التعميم الصفرية وأداء قليل من الرصاص، مما يوفر قويا و نقطة انطلاق متعددة الاستخدامات لبناء أنظمة مفهوم القراءة الجديدة.
Many datasets have been created for training reading comprehension models, and a natural question is whether we can combine them to build models that (1) perform better on all of the training datasets and (2) generalize and transfer better to new datasets. Prior work has addressed this goal by training one network simultaneously on multiple datasets, which works well on average but is prone to over- or under-fitting different sub- distributions and might transfer worse compared to source models with more overlap with the target dataset. Our approach is to model multi-dataset question answering with an ensemble of single-dataset experts, by training a collection of lightweight, dataset-specific adapter modules (Houlsby et al., 2019) that share an underlying Transformer model. We find that these Multi-Adapter Dataset Experts (MADE) outperform all our baselines in terms of in-distribution accuracy, and simple methods based on parameter-averaging lead to better zero-shot generalization and few-shot transfer performance, offering a strong and versatile starting point for building new reading comprehension systems.
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