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- |Name|Definition|Example|Characteristics|Organization|
- |----:|:---------:|:-----:|:-------------:|:---------:|
- |Connectivity Models| Data points closer in data space are more similar than those far away| hierachical cluster| easy to interpret but do not scale well|Hierachical|
- |Centroid models|iterative where similarity is intepreted as proximity of data point to centroid| K-means|provide final number of cluster| Non-Hierachical|
- |Distribution Models|Based on probability of data points in a cluster belonging to the same distribution | EM-Algorithm (Expectation-Maximization) | frequent problems of overfitting|Non-Hierachical|
- |Density Models| Isolate different density regions as basis for clustering| Density-Based Clustering of Application with Noise (DBSCAN)| Not good on high dimensional data or clusters with varying densities|Non-Hierachical|
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