org.alitouka.spark.dbscan.spatial.rdd

PartitioningSettings

class PartitioningSettings extends Serializable

Represents density-based partitioning settings. Most of the time you can use default settings, or adjust only the numberOfPointsInBox parameter

During density-based partitioning, a data set is split along the longest dimension into numberOfSplits parts, then each part is split again and so on, until the maximum number of levels ( numberOfLevels ) is reached, or until the number of points in this part of the data set is less than a specified number ( numberOfPointsInBox )

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Instance Constructors

  1. new PartitioningSettings(numberOfSplits: Int = ..., numberOfLevels: Int = ..., numberOfPointsInBox: Long = ..., numberOfSplitsWithinPartition: Int = ...)

    numberOfSplits

    A number of parts at each level

    numberOfLevels

    Number of levels

    numberOfPointsInBox

    APPROXIMATE number of points in each density-based partition. The actual number can be anywhere from 0 to 2*numberOfPointsInBox-1, depending on distribution of your data.

    numberOfSplitsWithinPartition

    Each partition will be split into parts to build an indexing data structure. This parameter represents the number of splits along each dimension

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  17. val numberOfLevels: Int

    Number of levels

  18. val numberOfPointsInBox: Long

    APPROXIMATE number of points in each density-based partition.

    APPROXIMATE number of points in each density-based partition. The actual number can be anywhere from 0 to 2*numberOfPointsInBox-1, depending on distribution of your data.

  19. val numberOfSplits: Int

    A number of parts at each level

  20. val numberOfSplitsWithinPartition: Int

    Each partition will be split into parts to build an indexing data structure.

    Each partition will be split into parts to build an indexing data structure. This parameter represents the number of splits along each dimension

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  26. def withNumberOfLevels(nl: Int): PartitioningSettings

  27. def withNumberOfSplitsWithinPartition(ns: Int): PartitioningSettings

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