基于跨本体语义相关的三维模型检索方法-电子科技大学学报.pdfVIP

第46 卷 第4 期 电 子 科 技 大 学 学 报 Vol.46 No.4 2017年7月 Journal of University of Electronic Science and Technology of China Jul. 2017 基于跨本体语义相关的三维模型检索方法 陈 莉，刘 弘 ( 山东师范大学信息科学与工程学院 济南 250014 ；山东省分布式计算机软件新技术重点实验室 济南 250014) 【摘要】针对某些特定领域的建模中单一的语义检索条件无法得到理想的检索结果，提出了基于跨本体的语义相关度进 行检索的算法。首先构建相关领域的本体，然后对已有实例进行分析，通过聚类算法找出模型本体间具有相关性的属性。再 通过调查获取用户对实例的评价数据，对深度信念网络进行训练，求出本体间相关语义属性的相关度权值。最终对模型库中 的模型计算与检索模型间的相关度作为检索条件，将大于一定阈值的模型作为检索结果。应用该算法，用户一般在检索首页 可以找到较满意的模型，大大缩短了检索的时间。 关 键 词 三维模型检索; 聚类分析; 深度信念网络; 本体; 语义特征 中图分类号 TP391 文献标志码 A doi:10.3969/j.issn.1001-0548.2017.04.018 3D Model Retrieval Method Based on Semantic Correlation between Different Ontology CHEN Li and LIU Hong (School of Information Science Engineering, Shandong Normal University Jinan 250014; Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Jinan 250014) Abstract In some specific areas, a single condition of semantic retrieval cannot have the ideal results. A retrieval algorithm based on semantic correlation between different ontologies is presented. The algorithm firstly builds the domain ontology, and then analyzes the existing instances to find out the semantic correlation among ontologies by clustering algorithm. Besides, the evaluation data of the user of the instance which is obtained by the survey is used as the sample, with which the deep belief network (DBN) is trained to obtain the weights of correlation between semantics of different ontologies. Finally, the relevancy between the retrieved models and the model in database is computed and the models with higher relevan