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首页> 外文期刊>International Journal of Computer Integrated Manufacturing >Ontology-based semantic retrieval for mechanical design knowledge
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Ontology-based semantic retrieval for mechanical design knowledge

机译:机械设计知识的基于本体的语义检索

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摘要

The semantic retrieval of mechanical domain knowledge is critical in product design process. To address the problems with existing keyword-based and semantic-enabled methods, an ontology-based search system (OBSS) for knowledge search and retrieval from knowledge base is proposed. In our scheme, the mechanical design knowledge ontology is first constructed, and query semantic extension and retrieval are then adopted for knowledge retrieval. For the query semantic extension, the semantic similarity analysis is adopted to discover the semantic distance between the semantic key in query and its extended semantic keys. Then, the query boosts of extended semantic keys are modified by the semantic similarity. In the precision and recall experiments, the results demonstrate that our method outperforms the keyword-based search technique. Further, two query cases ensure that the semantic retrieval algorithm based on domain ontology could understand the latent search intents. This research contributes to the query intent capture and the application of engineering ontology for design knowledge retrieval.
机译:机械领域知识的语义检索在产品设计过程中至关重要。为了解决现有基于关键字和启​​用语义的方法所存在的问题,提出了一种用于知识搜索和知识库检索的基于本体的搜索系统(OBSS)。在我们的方案中,首先构造了机械设计知识本体,然后采用查询语义扩展和检索进行知识检索。对于查询语义扩展,采用语义相似度分析来发现查询中的语义键与其扩展语义键之间的语义距离。然后,通过语义相似度修改扩展语义键的查询增强。在精确度和召回率实验中,结果表明我们的方法优于基于关键字的搜索技术。此外,两个查询案例确保了基于领域本体的语义检索算法可以理解潜在的搜索意图。该研究有助于查询意图的捕获以及工程本体在设计知识检索中的应用。

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