This work presents six structural quality metrics that can measure the quality of knowledge graphs and analyzes five cross-domain knowledge graphs on the web (Wikidata, DBpedia, YAGO, Google Knowledge Graph, Freebase) as well as 'Raftel', Naver's integrated knowledge graph. The 'Good Knowledge Graph' should define detailed classes and properties in its ontology so that knowledge in the real world can be expressed abundantly. Also, instances and RDF triples should use the classes and properties actively. Therefore, we tried to examine the internal quality of knowledge graphs numerically by focusing on the structure of the ontology, which is the schema of knowledge graphs, and the degree of use thereof. As a result of the analysis, it was possible to find the characteristics of a knowledge graph that could not be known only by scale-related indicators such as the number of classes and properties.
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标签预测上的一致性正则化成为半监督学习中的一项基本技术,但是它仍然需要大量的训练迭代以进行高性能。在这项研究中,我们分析了一致性正则化限制了由于在模型更新中排除具有不受欢迎的伪标记的样品,因此标记信息的传播限制了。然后,我们提出对比度正则化,以提高未标记数据的群集特征一致性正则化的效率和准确性。在特定的情况下,在通过其伪标签将强大的增强样品分配给群集后,我们的对比度正规化更新了模型,以便具有自信的伪标签的功能在同一集群中汇总了功能,同时将功能推迟了不同的群集中的功能。结果,在培训中,可以有效地将自信的伪标签的信息有效地传播到更无标记的样品中。在半监督学习任务的基准上,我们的对比正则化改善了以前的基于一致性的方法,并取得了最新的结果,尤其是在培训次数较少的情况下。我们的方法还显示了在开放式半监督学习中的稳健性能,其中未标记的数据包括分发样本。
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