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Register a new userDistilling Linguistic Context for Language Model Compression
تقطير السياق اللغوي لضغط نموذج اللغة
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تكمن الشبكة العصبية الباهظة الثمنية والذاكرة الكثيفة وراء النجاح الأخير لتعلم تمثيل اللغة. نقل المعرفة، وهي تقنية رئيسية لنشر مثل هذا النموذج اللغوي الواسع في البيئات النادرة من الموارد، ينقل المعرفة المتعلقة بتمثيلات الكلمات الفردية المستفادة دون قيود. في هذه الورقة، مستوحاة من الملاحظات الأخيرة أن تمثيلات اللغة في وضع معرفة نسبيا ولديها معرفة أكثر دلالة ككل، نقدم هدف تقطير معارف جديد لتعلم تمثيل اللغة الذي ينقل المعرفة السياقية عبر نوعين من العلاقات عبر الإنترنت: علاقة كلمة وطبقة تحول العلاقة. على عكس تقنيات التقطير الأخيرة الأخرى لنماذج اللغة، فإن تقطيرنا السياقي ليس لديه أي قيود على التغييرات المعمارية بين المعلم والطالب. نحن نقوم بالتحقق من فعالية طريقتنا حول المعايير الصعبة لمهام فهم اللغة، ليس فقط في بنية الأحجام المختلفة ولكن أيضا بالاشتراك مع Dynabert، طريقة تشذيب الحجم التكيفي المقترح مؤخرا.
A computationally expensive and memory intensive neural network lies behind the recent success of language representation learning. Knowledge distillation, a major technique for deploying such a vast language model in resource-scarce environments, transfers the knowledge on individual word representations learned without restrictions. In this paper, inspired by the recent observations that language representations are relatively positioned and have more semantic knowledge as a whole, we present a new knowledge distillation objective for language representation learning that transfers the contextual knowledge via two types of relationships across representations: Word Relation and Layer Transforming Relation. Unlike other recent distillation techniques for the language models, our contextual distillation does not have any restrictions on architectural changes between teacher and student. We validate the effectiveness of our method on challenging benchmarks of language understanding tasks, not only in architectures of various sizes but also in combination with DynaBERT, the recently proposed adaptive size pruning method.
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