连续近邻查询(CNN)是时空数据库中一种重要的查询类型。

Continuous nearest neighbors (CNN) inquiry is important in spatial-temporal database.

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连续近邻查询(CNN)要检索一给定查询线段上每一点的近邻。

Continuous nearest neighbors (CNN) inquiry is to retrieve nearest neighbors of every point on given line segment.

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