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Register a new userZero-Shot Information Extraction as a Unified Text-to-Triple Translation
استخراج المعلومات Zero-Shot كترجمة Text-to-triple
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نقوم بإلقاء مجموعة من مهام استخراج المعلومات في إطار ترجمة نصية إلى ثلاثية. بدلا من حل كل مهمة تعتمد على مجموعات البيانات والنماذج الخاصة بالمهام، نقوم بإضفاء الطابع الرسمي على المهمة كترجمة بين نص الإدخال الخاص بمهارات المهام وتصل إلى ثلاث مرات. من خلال اتخاذ المدخلات الخاصة بالمهامة، فإننا تمكن الترجمة المرجعية على المهام من خلال الاستفادة من المعرفة الكامنة التي يحتوي عليها نموذج لغة مدرب مسبقا حول المهمة. نوضح كذلك أن مهمة ما قبل التدريب البسيطة المتمثلة في التنبؤ بالمعلومات العلاجية التي تتوافق مع نص الإدخال هو وسيلة فعالة لإنتاج مخرجات خاصة بالمهام. وهذا يتيح نقل الطلقة الصفرية لإطارنا إلى مهام المصب. ندرس أداء الطلقة الصفرية لهذا الإطار في استخراج المعلومات المفتوح (OIE2016، NYT، WEB، PENN)، تصنيف العلاقة (عدد قليل من الألوان والمستقبلية)، والتحقيق الواقعي (Google-Re و T-Rex). التحويلات النموذجية غير تيهية لمعظم المهام وغالبا ما تكون تنافسية مع طريقة تحت إشراف بالكامل دون الحاجة إلى أي تدريب خاص بمهام. على سبيل المثال، نتفوق بشكل كبير على درجة F1 من استخراج المعلومات المفتوح الخاضعة للإشراف دون الحاجة لاستخدام مجموعة التدريب الخاصة بها.
We cast a suite of information extraction tasks into a text-to-triple translation framework. Instead of solving each task relying on task-specific datasets and models, we formalize the task as a translation between task-specific input text and output triples. By taking the task-specific input, we enable a task-agnostic translation by leveraging the latent knowledge that a pre-trained language model has about the task. We further demonstrate that a simple pre-training task of predicting which relational information corresponds to which input text is an effective way to produce task-specific outputs. This enables the zero-shot transfer of our framework to downstream tasks. We study the zero-shot performance of this framework on open information extraction (OIE2016, NYT, WEB, PENN), relation classification (FewRel and TACRED), and factual probe (Google-RE and T-REx). The model transfers non-trivially to most tasks and is often competitive with a fully supervised method without the need for any task-specific training. For instance, we significantly outperform the F1 score of the supervised open information extraction without needing to use its training set.
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