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The Retrieval of Regions with Similar Tendency in Geo-Tagged Dataset

机译:在地理标记数据集中检索具有相似趋势的地区

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We consider an application scenario where user want to find regions that have similar tendency about a certain issue, e.g., looking for regions that are neutral to new welfare policies. Motivated by this, we present a novel query to retrieve regions with similar tendency, named p-Dense Region Query (ρ-DR Query), that returns arbitrary shape of regions whose tendency satisfy the p-dense constraint. We design a basic algorithm to find all regions with similar spatial textual density that we define in this paper, and also propose an advanced algorithm that performs more efficiently. We conduct experiments to evaluate the performance of both algorithms, and the experiments prove the advanced algorithm is superior to the basic algorithm.
机译:我们考虑一个应用方案,其中用户想要查找具有类似趋势的区域,例如,例如寻找与新福利政策中立的地区。 由此激励,我们提出了一种新的查询来检索具有类似趋势的区域,命名为p-indend Region查询(ρ-dr查询),其返回其趋势满足p致密约束的任意形状。 我们设计了一种基本算法,可以找到具有类似的空间文本密度的所有区域,我们在本文中定义,并且还提出了一种更有效地执行的高级算法。 我们进行实验以评估两种算法的性能,实验证明了先进的算法优于基本算法。

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