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arXiv 2212.09503cs.CLcs.LG
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跨复杂结构化、多对象和自由文本注释任务测量注释器一致性

Measuring Annotator Agreement Generally across Complex Structured, Multi-object, and Free-text Annotation Tasks

University of Texas at Austin(德克萨斯大学奥斯汀分校);Northeastern University(东北大学)

Alexander Braylan, Omar Alonso, Matthew Lease

摘要:

当注释者标记数据时,质量保证的一个关键指标是注释者间一致性(IAA):注释者在标签上达成一致的程度。虽然许多IAA措施存在简单的分类和顺序标签任务,相对较少的工作考虑了更复杂的标签任务,如结构化,多对象,和自由文本注释。Krippendorff的alpha以用于简单的标记任务而闻名,确实有一个基于距离的公式,具有更广泛的适用性,但很少有工作研究其在复杂注释任务中的有效性和一致性。我们调查的IAA措施的设计和评估复杂的注释任务,评估跨越七个不同的任务:图像边界框,图像关键点,文本序列标记,排名列表,自由文本翻译,数字向量和语法树。我们发现可解释性的困难和选择距离函数的复杂性是在这些任务中普遍应用克里彭多夫阿尔法的关键障碍。我们提出了两个新的,更可解释的措施,表明他们产生更一致的IAA措施跨任务和注释距离函数。

英文摘要:

When annotators label data, a key metric for quality assurance is inter-annotator agreement (IAA): the extent to which annotators agree on their labels. Though many IAA measures exist for simple categorical and ordinal labeling tasks, relatively little work has considered more complex labeling tasks, such as structured, multi-object, and free-text annotations. Krippendorff's alpha, best known for use with simpler labeling tasks, does have a distance-based formulation with broader applicability, but little work has studied its efficacy and consistency across complex annotation tasks. We investigate the design and evaluation of IAA measures for complex annotation tasks, with evaluation spanning seven diverse tasks: image bounding boxes, image keypoints, text sequence tagging, ranked lists, free text translations, numeric vectors, and syntax trees. We identify the difficulty of interpretability and the complexity of choosing a distance function as key obstacles in applying Krippendorff's alpha generally across these tasks. We propose two novel, more interpretable measures, showing they yield more consistent IAA measures across tasks and annotation distance functions.

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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