Bi Clustering

BUSINESS INTELLIGENCE

Assignment 1

Find clusters taking last three objects as the seeds. Then, explain why and how the results obtained are different from that of the example solved in the class.

Sample

Student | Age | Mark1 | Mark2 | Mark3 |

S1 | 18 | 73 | 75 | 57 |

S2 | 18 | 79 | 85 | 75 |

S3 | 23 | 70 | 70 | 52 |

S4 | 20 | 55 | 55 | 55 |

S5 | 22 | 85 | 86 | 87 |

S6 | 19 | 91 | 90 | 89 |

S7 | 20 | 70 | 65 | 60 |

S8 | 21 | 53 | 56 | 59 |

S9 | 19 | 82 | 82 | 60 |

S10 | 47 | 75 | 76 | 77 |

Seeds

S8 | 21 | 53 | 56 | 59 |

S9 | 19 | 82 | 82 | 60 |

S10 | 47 | 75 | 76 | 77 |

First Iteration

C1 | 21 | 53 | 56 | 59 | Distance from clusters | Allocation to nearest cluster |

C2 | 19 | 82 | 82 | 60 | Frm C1 | Frm C2 | Frm C3 | |

C2 | 47 | 75 | 76 | 77 | | | | |

S1 | 18 | 73 | 75 | 57 | 44 | 20 | 52 | C2 |

S2 | 18 | 79 | 85 | 75 | 74 | 22 | 44 | C2 |

S3 | 23 | 70 | 70 | 52 | 40 | 36 | 60 | C2 |

S4 | 20 | 55 | 55 | 55 | 8 | 60 | 90 | C1 |

S5 | 22 | 85 | 86 | 87 | 91 | 37 | 55 | C2 |

S6 | 19 | 91 | 90 | 89 | 104 | 46 | 70 | C2 |

S7 | 20 | 70 | 65 | 60 | 28 | 30 | 60 | C1 |

S8 | 21 | 53 | 56 | 59 | 0 | 58 | 86 | C1 |

S9 | 19 | 82 | 82 | 60 | 58 | 0 | 58 | C2 |

S10 | 47 | 75 | 76 | 77 | 86 | 58 | 0 | C3 |

Second Iteration

C1 | 20.3 | 59.3 | 58.7 | 58.0 | Distance from clusters | Allocation to nearest cluster |

C2 | 19.8 | 80.0 | 81.3 | 70.0 | Frm C1 | Frm C2 | Frm C3 | |

C2 | 47 | 75 | 76 | 77 | | | | |

S1 | 18 | 73 | 75 | 57 | 33.3 | 28.2 | 52.0 | C2 |

S2 | 18 | 79 | 85 | 75 | 65.3 | 11.5 | 44.0 | C2 |

S3 | 23 | 70 | 70 | 52 | 30.7 | 42.5 | 60.0 | C1 |

S4 | 20 | 55 | 55 | 55 | 11.3 | 66.5 | 90.0 | C1 |

S5 | 22 | 85 | 86 | 87 | 83.7 | 28.8 | 55.0 | C2 |

S6 | 19 | 91 | 90 | 89 | 95.3 | 39.5 | 70.0 | C2 |

S7 | 20 | 70 | 65 | 60 | 19.3 | 36.5 | 60.0 | C1 |

S8 | 21 | 53 | 56 | 59 | 10.7 | 64.5 | 86.0 | C1 |

S9 | 19 | 82 | 82 | 60 | 49.3 | 13.5 | 58.0 | C2 |

S10 | 47 | 75 | 76 | 77 |...