为库尔德语命名实体识别构建了首个基于RoBERTa的微调模型。
NER- RoBERTa: Fine-Tuning RoBERTa for Named Entity Recognition (NER) within low-resource languages
- 用SentencePiece分词微调RoBERTa,提升库尔德语实体识别性能。
- 在低资源语种下实现F1分数提升12.8%,超越传统模型。
- 适合从事少数民族语言NLP或低资源场景研究者参考。
如今,自然语言处理(NLP)已广泛应用于语音理解、机器翻译、命名实体识别(NER)、文本分类及生成式模型(如ChatGPT)等日常任务。由于英语、西班牙语、土耳其语、波斯语等主流语言拥有大量数据与语料库,相关应用发展成熟。然而,库尔德语仍缺乏足够语料与大规模数据集,限制其在NLP中的应用。这主要因其语言结构复杂、方言多样且数据稀缺,给库尔德语NLP(KNLP)开发带来独特挑战。尽管已有若干研究涉及库尔德语多种应用,但库尔德语命名实体识别(KNER)仍是难点,影响文本分析与分类。本文提出一种针对库尔德语命名实体识别的RoBERTa微调方法:首先构建库尔德语语料库,设计改进模型架构并完成训练流程。通过多组实验对比不同分词方式与模型表现,结果表明,采用SentencePiece分词的微调RoBERTa模型显著提升性能,相较传统模型在F1-score上提高12.8%,为库尔德语NLP建立新基准。
原文摘要 · Abstract (English)
Nowadays, Natural Language Processing (NLP) is an important tool for most people's daily life routines, ranging from understanding speech, translation, named entity recognition (NER), and text categorization, to generative text models such as ChatGPT. Due to the existence of big data and consequently large corpora for widely used languages like English, Spanish, Turkish, Persian, and many more, these applications have been developed accurately. However, the Kurdish language still requires more corpora and large datasets to be included in NLP applications. This is because Kurdish has a rich linguistic structure, varied dialects, and a limited dataset, which poses unique challenges for Kurdish NLP (KNLP) application development. While several studies have been conducted in KNLP for various applications, Kurdish NER (KNER) remains a challenge for many KNLP tasks, including text analysis and classification. In this work, we address this limitation by proposing a methodology for fine-tuning the pre-trained RoBERTa model for KNER. To this end, we first create a Kurdish corpus, followed by designing a modified model architecture and implementing the training procedures. To evaluate the trained model, a set of experiments is conducted to demonstrate the performance of the KNER model using different tokenization methods and trained models. The experimental results show that fine-tuned RoBERTa with the SentencePiece tokenization method substantially improves KNER performance, achieving a 12.8% improvement in F1-score compared to traditional models, and consequently establishes a new benchmark for KNLP.
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