From: S-RASTER: contraction clustering for evolving data streams

Symbol | Meaning |
---|---|

\(\xi\) | Precision for projection operation |

\(\tau\) | Threshold number of points to determine if a tile is significant |

\(\delta\) | Distance metric for cluster definition |

\(\mu\) | Minimum cluster size in terms of the number of significant tiles |

\(\pi\) | Projection operator |

\(\alpha\) | Accumulation operator |

\(\kappa\) | Clustering operator |