Quran is the most significant religious document in the Arabic language in Islamic law. Several Quranic search engines have been designed and widely used for the past two decades. However, these search engines have certain limitations. For example, in many cases, the search is unable to retrieve relevant verses because it is based on keywords or root search and does not rely on the semantic relation between words in the query. The main objective of the present paper is to design a semantic search engine based on ontology as an index. In our work, we focus on creating a new ontology for Quranic document based on a set of useful words extracted from the Quranic Earab book with grammatical functions that serve as concepts. This ontology will be used as an index in information retrieval. The main idea is to create links between the existing Quranic words in the same verse, which will be used with user’s query to find the desired verses. We developed a graphical user interface with free and multiple inputs that convert users’ Arabic queries into SPARQL queries and then retrieve relevant verses from the ontology. The obtained results show that our proposal provides heightened precision and recall compared to other search engines.

古兰经是伊斯兰法律中阿拉伯语中最重要的宗教文献。在过去的二十年中，已经设计并广泛使用了几种古兰经搜索引擎。但是，这些搜索引擎有一定的局限性。例如，在许多情况下，搜索无法检索相关的经文，因为它基于关键字或词根搜索，并且不依赖于查询中单词之间的语义关系。本文的主要目的是设计一种基于本体作为索引的语义搜索引擎。在我们的工作中，我们专注于基于古兰经Earab书中提取的一组有用词，并以语法功能作为概念，为古兰经文档创建新的本体。该本体将用作信息检索中的索引。主要思想是在同一经文中的现有古兰经词之间创建链接，该链接将与用户查询一起使用以查找所需的经文。我们开发了带有免费输入和多个输入的图形用户界面，将用户的阿拉伯语查询转换为SPARQL查询，然后从本体中检索相关的经文。获得的结果表明，与其他搜索引擎相比，我们的建议提供了更高的精度和召回率。