Consensus Clustering - Issues With Existing Clustering Techniques

Issues With Existing Clustering Techniques

  • Current clustering techniques do not address all the requirements adequately.
  • Dealing with large number of dimensions and large number of data items can be problematic because of time complexity;
  • Effectiveness of the method depends on the definition of “distance” (for distance based clustering)
  • If an obvious distance measure doesn’t exist we must “define” it, which is not always easy, especially in multidimensional spaces.
  • The result of the clustering algorithm (that in many cases can be arbitrary itself) can be interpreted in different ways.

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