To address the heterogeneity problems in sensor ontology interaction within Internet of Things (IoT) systems, this paper proposes a sensor ontology matching method based on a Genuine-Pseudo Triplet Neural Network(GP-TNN). Firstly, core entities are extracted by analyzing the in-degree and out-degree of entities to enhance the quality of training samples. Secondly, a deterministic hybrid similarity measurement method is designed to generate high-confidence anchor matching pairs, thereby reducing the dependence on reference alignments during training. Finally, by leveraging the representation capabilities of Siamese and pseudo-Siamese networks for homogeneous and heterogeneous annotation attributes, the GP-TNN is constructed to enhance the extraction of deep semantic features. Evaluation experiments are conducted on the Benchmark dataset from the Ontology Alignment Evaluation Initiative(OAEI) and three real-world sensor ontologies. Experimental results show that the proposed method can more effectively improve the quality of matching results than the comparative methods, and provides reliable theoretical support for the sensor ontology matching task in the Internet of Things.
伴随着物联网(Internet of Things, IoT)的快速发展,移动流量数据的急剧增长给传感器设备带来了诸多挑战,如高延迟和能源消耗增加[1,2]。第六代通信技术(6G)和网络孪生等新兴网络技术正在成为促进复杂无线互联的关键支撑[3],促使大量传感器设备在异构网络中进行数据交换。然而,由于不同网络环境下的数据标准、格式和语义定义存在差异,传感器数据往往缺乏统一的语义信息,导致数据的异质性问题。传感器本体通过机器可解释的方式组织传感器信息和知识,为解决数据异质性提供了一种有效手段。但由于本体构建过程中存在工程主观性,传感器本体自身也具有固有的异质性[4],包括对相同概念使用不同的描述、对不同概念使用相同的描述,以及在特定领域构建不同粒度的层次结构等。这种异质性问题严重阻碍了传感器设备之间的交互与协作。
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