Spatial keyword search has been playing an indispensable role in personalized route recommendation and geo-textual information retrieval. In this light, we conduct a survey on existing studies of spatial keyword search. We categorize existing works of spatial keyword search based on the types of their input data, output results, and methodologies. For each category, we summarize their common features in terms of input data, output result, indexing scheme, and search algorithms. In addition, we provide detailed description regarding each study of spatial keyword search. This survey summarizes the findings of existing spatial keyword search studies, thus uncovering new insights that may guide software engineers as well as further research.

中文翻译：

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空间关键字搜索：调查

空间关键词搜索在个性化路线推荐和地理文本信息检索中一直扮演着不可或缺的角色。有鉴于此，我们对现有的空间关键词搜索研究进行了调查。我们根据空间关键字搜索的现有作品的输入数据，输出结果和方法的类型对其进行分类。对于每个类别，我们在输入数据，输出结果，索引方案和搜索算法方面总结了它们的共同特征。此外，我们提供有关空间关键字搜索的每项研究的详细说明。这项调查总结了现有空间关键字搜索研究的结果，从而发现了可以指导软件工程师以及进一步研究的新见解。