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Register a new userMultiEURLEX - A multi-lingual and multi-label legal document classification dataset for zero-shot cross-lingual transfer
multieurlex - مجموعة بيانات تصنيف وثيقة قانونية متعددة اللغات ومتعددة الملصقات لنقل الصفر اللغوي
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نقدم متعدد اليوراء، مجموعة بيانات جديدة متعددة اللغات لتصنيف الموضوع للوثائق القانونية. تضم DataSet قوانين الاتحاد الأوروبي 65 ألف (EU)، والتي ترجمت رسميا في 23 لغة، مشروحا بالملصقات المتعددة من تصنيف Eurovoc. نسلط الضوء على تأثير المنفأة الزمنية الانجراف وأهمية التسلسل الزمني، بدلا من الانقسامات العشوائية. نستخدم DataSet كاختبار لنقل صفرية عبر اللغات، حيث استغلنا المستندات التدريبية المشروح بلغة واحدة (مصدر) لتصنيف المستندات بلغة أخرى (الهدف). نجد أن ضبط النموذج المحدد المتعدد اللغتين (XLM-Roberta، MT5) في لغة مصدر واحدة يؤدي إلى نسيان كارثي من المعرفة متعددة اللغات، وبالتالي، فإن تحويل صفر ضعيف إلى لغات أخرى. استراتيجيات التكيف، وهي استراتيجيات دقيقة، محولات، معترفيت، LNFIT، اقترحت في الأصل تسريع الضبط الجميل للمهام النهائية الجديدة، والمساعدة في الاحتفاظ بالمعرفة متعددة اللغات من الاحتجاج، وتحسين نقل اللغات الصفر قليلا، ولكن تأثيرها يعتمد أيضا على ذلك على النموذج المحدد مسبقا يستخدم وحجم مجموعة التسمية.
We introduce MULTI-EURLEX, a new multilingual dataset for topic classification of legal documents. The dataset comprises 65k European Union (EU) laws, officially translated in 23 languages, annotated with multiple labels from the EUROVOC taxonomy. We highlight the effect of temporal concept drift and the importance of chronological, instead of random splits. We use the dataset as a testbed for zero-shot cross-lingual transfer, where we exploit annotated training documents in one language (source) to classify documents in another language (target). We find that fine-tuning a multilingually pretrained model (XLM-ROBERTA, MT5) in a single source language leads to catastrophic forgetting of multilingual knowledge and, consequently, poor zero-shot transfer to other languages. Adaptation strategies, namely partial fine-tuning, adapters, BITFIT, LNFIT, originally proposed to accelerate fine-tuning for new end-tasks, help retain multilingual knowledge from pretraining, substantially improving zero-shot cross-lingual transfer, but their impact also depends on the pretrained model used and the size of the label set.
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