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arXiv 2601.03025cs.CL
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LittiChoQA:用于问答的印度语言文学文本

LittiChoQA: Literary Texts in Indic Languages Chosen for Question Answering

Indraprastha Institute of Information Technology, Delhi(德里英德拉普拉斯塔信息技术学院);Accenture(埃森哲)

Aarya Khandelwal, Ritwik Mishra, Rajiv Ratn Shah

AI总结:

LittiChoQA是一个针对印度语言文学文本的大型问答数据集,通过完整上下文微调在性能上表现最佳,同时上下文缩短显著提升了处理效率。

摘要:

长上下文的文学文本问答(QA)对现代大语言模型提出了重大挑战,特别是在资源匮乏的语言中。我们通过引入LittiChoQA,解决印度语言长上下文QA资源稀缺的问题,这是目前最大的文学QA数据集,涵盖印度恒河平原上许多语言。该数据集包含超过270,000个自动生成的问题-答案对,具有事实性问题和非事实性问题的平衡分布,这些数据来自开放网络上自然撰写的文学文本。我们评估了多种多语言LLM在非事实性、抽象性QA任务上的表现,分别在完整上下文和上下文缩短的设置下进行。结果表明,性能与效率之间存在明显权衡:完整上下文微调获得最高令牌级和语义级得分,而上下文缩短显著提高了吞吐量。在评估的模型中,Krutrim-2表现最强,完整上下文下获得76.1的语义得分。而在上下文缩短设置下,其在答案段落选择时得分为74.9,在向量检索时得分为71.4。定性评估进一步验证了这些发现。

英文摘要:

Long-context question answering (QA) over literary texts poses significant challenges for modern large language models, particularly in low-resource languages. We address the scarcity of long-context QA resources for Indic languages by introducing LittiChoQA, the largest literary QA dataset to date covering many languages spoken in the Gangetic plains of India. The dataset comprises over 270K automatically generated question-answer pairs with a balanced distribution of factoid and non-factoid questions, generated from naturally authored literary texts collected from the open web. We evaluate multiple multilingual LLMs on non-factoid, abstractive QA, under both full-context and context-shortened settings. Results demonstrate a clear trade-off between performance and efficiency: full-context fine-tuning yields the highest token-level and semantic-level scores, while context shortening substantially improves throughput. Among the evaluated models, Krutrim-2 achieves the strongest performance, obtaining a semantic score of 76.1 with full context. While, in shortened context settings it scores 74.9 with answer paragraph selection and 71.4 with vector-based retrieval. Qualitative evaluations further corroborate these findings.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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