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Continuous Skylining on Volatile Moving Data

机译:不断变化的移动数据不断发展

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A dynamic skyline query retrieves the moving data objects that are not spatially dominated by any other object with respect to a given query point. Existing efforts on supporting such queries, however, supports location as a single dynamic attribute and one or more static dimensions. In a clear contrast, this paper focuses on the continuous skyline computation on moving data with an arbitrary number of dynamic queriable dimensions, e.g., to model both location and its volatility, with and without static dimension. Toward the goal, we investigate the relative positions and velocities of the initial skyline points with respect to the query, to derive a search region for skyline candidates. After retrieving these candidates, we further prune out some candidates and examine their spatial relations to monitor the changes in the skyline.
机译:动态天际线查询检索相对于给定查询点在空间上不受任何其他对象支配的运动数据对象。但是,在支持此类查询方面的现有努力将位置作为单个动态属性和一个或多个静态维度来支持。与之形成鲜明对比的是,本文着重于对具有任意数量的动态可查询维度的移动数据进行连续的天际线计算,例如,以静态和不静态的方式对位置及其波动性进行建模。为了实现这一目标,我们调查了有关查询的初始天际线点的相对位置和速度,以得出天际线候选者的搜索区域。在检索这些候选者之后,我们进一步修剪一些候选者,并检查它们的空间关系以监视天际线的变化。

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