Assessing Quality of Experience in Natural Language Generation of German Text

2026-08-19

AI Summary

本文通过构建TextQ-German数据集和开发混合模型来评估德语文本生成的质量体验，解决了传统自动度量无法全面捕捉文本质量感知的问题。

Abstract

The rapid advancement of Natural Language Generation (NLG) has made the reliable evaluation of generated text increasingly critical, as these systems, such as large language models (LLMs), are now widely deployed in real-world applications. However, traditional automatic metrics fail to capture the multifaceted nature of perceived quality. In this paper, we introduce TextQ-German, a novel dataset suite for human-centered evaluation of German NLG from a Quality of Experience (QoE) perspective, covering automatic text summarization and machine translation. Through crowdsourcing studies with German speakers, we collect human quality ratings and identify relevant perceptual quality dimensions for each task. We develop automatic QoE prediction models, including transformer-based, linguistic feature-based, and hybrid approaches. Hybrid models outperform pure transformer baselines in almost all experimental settings, while linguistic features alone can approach the performance of fine-tuned language models. The dataset is extended with LLM-generated outputs annotated with overall QoE scores. Final validation on held-out sets indicates generalization to unseen data. Our work contributes a publicly accessible resource for NLG evaluation and baselines for automatic QoE prediction, providing a foundation for developing NLG systems that better align with human quality perception.

Problem

• Natural Language Generation
• Quality of Experience
• Automatic Metrics
• Human Evaluation
• German Text

Innovation

• Quality of Experience
• Natural Language Generation
• Hybrid Models
• Linguistic Features
• Crowdsourcing Studies