Quality: What s g。。 d clustering A good clustering method will produce high quality clusters high intra-class similarity: cohesive within clusters low inter-class similarity: distinctive between clusters The guality of a clustering method depends on the similarity measure used by the method its implementation, and Its ability to discover some or all of the hidden patternsQuality: What Is Good Clustering? ◼ A good clustering method will produce high quality clusters ◼ high intra-class similarity: cohesive within clusters ◼ low inter-class similarity: distinctive between clusters ◼ The quality of a clustering method depends on ◼ the similarity measure used by the method ◼ its implementation, and ◼ Its ability to discover some or all of the hidden patterns 8