首次系统评估人类在文本嵌入任务中的表现,揭示模型与人类的差距。
HUME: Measuring the Human-Model Performance Gap in Text Embedding Tasks
- 构建HUME框架,量化人类在16个MTEB数据集上的表现
- 人类平均准确率77.6%,最佳模型达80.1%,低资源语言差距显著
- 发现数据集缺陷,验证大模型作标注仍不及人类
对比人类与模型在文本嵌入任务中的表现,有助于理解嵌入模型的优势与局限。然而,由于难以测量人类性能,此类比较极少进行。为此,我们提出HUME:文本嵌入的人类评估框架。尽管MTEB等框架可广泛评估模型性能,但缺乏可靠的人类表现基准,限制了模型得分的可解释性。我们在16个MTEB数据集上评估了人类在重排序、分类、聚类及语义文本相似性任务中的表现,涵盖语言多样性高的高/低资源语言。人类平均准确率为77.6%,优于最佳嵌入模型(80.1%),但存在显著差异:模型在部分数据集表现优异,但在低资源语言上明显落后。人类标注还揭示了多个数据集问题。我们进一步以九个大语言模型为标注者,在重排序、分类和STS任务中测试,发现其平均表现(76.1%)仍低于人类(81.2%),尽管具备更高的可扩展性。我们提供人类性能基线、任务难度模式洞察及可扩展评估框架,助力模型与基准的改进。代码、数据集和排行榜已开源于https://github.com/embeddings-benchmark/mteb。
原文摘要 · Abstract (English)
Comparing human and model performance offers a valuable perspective for understanding the strengths and limitations of embedding models, highlighting where they succeed and where they fail to capture meaning and nuance. However, such comparisons are rarely made, as human performance on embedding tasks is difficult to measure. To fill this gap, we introduce HUME: Human Evaluation Framework for Text Embeddings. While frameworks like MTEB provide broad model evaluation, they lack reliable estimates of human performance, limiting the interpretability of model scores. We measure human performance across 16 MTEB datasets spanning reranking, classification, clustering, and semantic textual similarity across linguistically diverse high- and low-resource languages. Humans achieve an average performance of 77.6% compared to 80.1% for the best embedding model, though with substantial variation: models reach high performance on some datasets while struggling on notably low-resource languages. Our human annotations also reveal multiple dataset issues. We additionally benchmark nine LLMs as annotators on reranking, classification, and STS tasks, finding that they fall short of human performance (76.1% vs. 81.2%) despite offering scalability advantages. We provide human performance baselines, insights into task difficulty patterns, and an extensible evaluation framework that enables a more meaningful interpretation of results and informs the development of both models and benchmarks. Our code, dataset, and leaderboard are publicly available at https://github.com/embeddings-benchmark/mteb.
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