July 2017
Beginner to intermediate
715 pages
17h 3m
English
Content preview from Java: Data Science Made Easy
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Evaluation
The most complex part of unsupervised learning is evaluating the quality of models. It is very hard to objectively tell if a clustering is good or whether one result is better than another.
There are a few ways to approach this:
- Manual evaluation
- Using label information, if present
- Unsupervised metrics