WDC Products
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WDC Products数据集由德国曼海姆大学的数据与网络科学组创建,包含11,715个产品描述,涵盖2,162个不同产品。该数据集通过从3,259个电子商务网站提取schema.org标记的产品数据构建,旨在为实体匹配任务提供多维度的评估基准。数据集设计了多个维度,包括角案例的数量、测试集中未见实体的比例以及开发集的大小,以系统评估匹配系统的性能。WDC Products不仅支持传统的成对匹配任务,还支持多类别匹配任务,确保两种设置之间的可比性,为实体匹配系统的精细评估提供了平台。
The WDC Products dataset was created by the Data and Web Science Group at the University of Mannheim, Germany. It contains 11,715 product descriptions covering 2,162 distinct products. The dataset is constructed by extracting schema.org-annotated product data from 3,259 e-commerce websites, aiming to provide a multi-dimensional evaluation benchmark for entity matching tasks. It is designed with multiple dimensions, including the number of corner cases, the proportion of unseen entities in the test set, and the size of the development set, to systematically evaluate the performance of matching systems. WDC Products not only supports traditional pairwise matching tasks but also multi-class matching tasks, ensuring comparability between the two settings, and provides a platform for fine-grained evaluation of entity matching systems.




