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Register a new userDiscoDVT: Generating Long Text with Discourse-Aware Discrete Variational Transformer
Discodvt: توليد نص طويل مع خطاب محول متغيرات منفصلة
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على الرغم من التطورات الأخيرة في تطبيق نماذج اللغة المدربة مسبقا لتوليد نصوص عالية الجودة، فإن توليد مقاطع طويلة تحافظ على تماسك طويل المدى أمر صعب للغاية لهذه النماذج.في هذه الورقة، نقترح Discodvt، وهو محول متغيرات منفصلة على درايته لمعالجة مشكلة عدم الاتساق.يتعلم Discodvt تسلسل متغير منفصل يلخص الهيكل العالمي للنص، ثم ينطبق عليه لتوجيه عملية التوليد في كل خطوة فك التشفير.لزيادة تضمين المعلومات التي تدرك الخطاب في التمثيلات الكامنة المنفصلة، نقدم هدف إضافي لنموذج علاقات الخطاب داخل النص.نقوم بإجراء تجارب واسعة على مجموعة من مجموعات بيانات من القصة المفتوحة وإثبات أن الرموز الكامنة تعلم مراسلات ذات معنى لهياكل الخطاب التي توجه النموذج لتوليد النصوص الطويلة مع التماسك طويل المدى أفضل.
Despite the recent advances in applying pre-trained language models to generate high-quality texts, generating long passages that maintain long-range coherence is yet challenging for these models. In this paper, we propose DiscoDVT, a discourse-aware discrete variational Transformer to tackle the incoherence issue. DiscoDVT learns a discrete variable sequence that summarizes the global structure of the text and then applies it to guide the generation process at each decoding step. To further embed discourse-aware information into the discrete latent representations, we introduce an auxiliary objective to model the discourse relations within the text. We conduct extensive experiments on two open story generation datasets and demonstrate that the latent codes learn meaningful correspondence to the discourse structures that guide the model to generate long texts with better long-range coherence.
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