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Evaluation of Knowledge
- Are all mined knowledge interesting?
- One can mine tremendous amount of “patterns” and knowledge
- Some may fit only certain dimension space (time, location, …)
- Some may not be representative, may be transient, …
- Evaluation of mined knowledge → directly mine only interesting knowledge?
- Descriptive vs. predictive
- Coverage
- Typicality vs. novelty
- Accuracy
- Timeliness
- …
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