FuseGen: PLM Fusion for Data-generation based Zero-shot Learning

التفاصيل البيبلوغرافية
العنوان: FuseGen: PLM Fusion for Data-generation based Zero-shot Learning
المؤلفون: Zou, Tianyuan, Liu, Yang, Li, Peng, Zhang, Jianqing, Liu, Jingjing, Zhang, Ya-Qin
سنة النشر: 2024
المجموعة: Computer Science
مصطلحات موضوعية: Computer Science - Computation and Language
الوصف: Data generation-based zero-shot learning, although effective in training Small Task-specific Models (STMs) via synthetic datasets generated by Pre-trained Language Models (PLMs), is often limited by the low quality of such synthetic datasets. Previous solutions have primarily focused on single PLM settings, where synthetic datasets are typically restricted to specific sub-spaces and often deviate from real-world distributions, leading to severe distribution bias. To mitigate such bias, we propose FuseGen, a novel data generation-based zero-shot learning framework that introduces a new criteria for subset selection from synthetic datasets via utilizing multiple PLMs and trained STMs. The chosen subset provides in-context feedback to each PLM, enhancing dataset quality through iterative data generation. Trained STMs are then used for sample re-weighting as well, further improving data quality. Extensive experiments across diverse tasks demonstrate that FuseGen substantially outperforms existing methods, highly effective in boosting STM performance in a PLM-agnostic way. Code is provided in https://github.com/LindaLydia/FuseGen.
Comment: 17 pages, 8 figures, 12 tabels
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2406.12527
رقم الأكسشن: edsarx.2406.12527
قاعدة البيانات: arXiv