An efficient social-like semantic-aware service discovery mechanism for large-scale Internet of Things
An efficient social-like semantic-aware service discovery mechanism for large-scale Internet of Things
复制标题
面向大规模物联网的高效类社交语义感知服务发现机制
DOI：
10.1016/j.comnet.2019.02.006
复制
发表时间：
2019
影响因子：
5.6
通讯作者：
Zhen-kuan Pan
中科院分区：
文献类型：
--
作者：
Hui Xia;Chun-qiang Hu;Fu Xiao;Xiang-guo Cheng;Zhen-kuan Pan
由于巨大的搜索空间、动态可用性和地理位置的限制，实现大规模物联网（即，IoT是一项具有挑战性的工作。由于社交网络和物联网之间的相似性，可以集成社交策略以提高物联网解决方案的性能。在本文中，我们提出了一个高效的social-like语义感知服务发现机制命名为SLSA模仿人类的社会行为和探索合作智能。我们的机制可以发现所需的服务，在一个快速和可扩展的方式。知识索引的更新过程采用了双模排序堆栈策略，提高了检索效率。考虑到领域本体中两个概念的语义相似性和语义相关性，我们引入模糊逻辑方法来计算它们的相关度以进行设备排名。SLSA实现自适应转发策略，其中服务查询以优选顺序被转发到相邻设备的所选子集。我们通过建立动态环境进行综合实验来评估四种机制。仿真结果表明，SLSA在三个方面都优于其他相关机制。并对小世界网络的特性进行了验证性检验。
Due to the enormous search space, dynamic availability, and restrictions on geographic positions, achieving a scalable and efficient service discovery mechanism for large-scale Internet of Things (i.e., IoT) is a challenging job. Owing to the similarity between social networks and IoT, social strategies can be integrated to improve the performance of IoT solutions. In this paper, we propose an efficientsocial-like semantic-awareservice discovery mechanism named SLSA by mimicking human-like social behaviors and exploring cooperative intelligence. Our mechanism can discover desired services in a fast and scalable manner. The update process of knowledge index adopts a dual-modular-ordering stack strategy that makes search more efficient. Considering the semantic similarity and semantic relativity of two concepts in the domain ontology, we introduce the fuzzy logic method to calculate their correlation degree for device ranking. The SLSA implements an adaptive forwarding strategy, where the service query is forwarded to a selected subset of neighboring devices in a preferred order. We conduct comprehensive experiments to evaluate four mechanisms by establishing dynamic environments. The simulation results show that the SLSA achieves better performance than the other relevant mechanisms with three aspects. Furthermore, confirmative tests are carried out on the characteristics of small-world networks.