Question - Explain the chameleon method utilized in data warehousing.
Answer -
Chameleon may be a methodology that may be a hierarchical clustering algorithm that overcomes the restrictions of the prevailing models and methods in data warehousing. This method operates on the sparse graph having nodes that represent data items and edges which represent the weights of the info items. This representation allows large data sets to be created and operated successfully. The tactic finds the clusters that are utilized in the info set using the two-phase algorithm. The primary phase consists of the graph partitioning that permits the clustering of the info items into a larger number of sub-clusters; the second phase, on the opposite hand, uses an agglomerative hierarchical clustering algorithm to look for the clusters that are genuine and may be combined alongside the sub-clusters that are produced.