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Printable Handouts
Navigable Slide Index
- Introduction
- The problem
- Simplicity first!
- Agenda
- One attribute does all the work
- Example
- Complications: missing values
- Complications: overfitting
- Evaluating the result
- First description of the method
- Agenda: statistical modeling
- Statistical modeling
- Bayes's rule
- Weather data: probabilities
- Weather data: results
- Complications: zero frequencies, missing values
- Numeric attributes
- Numeric attributes: example
- "Nave" statistical model
- Agenda: constructing decision trees
- Constructing decision trees
- Which attribute to select? (1)
- Which is the best attribute?
- Which attribute to select? (2)
- Continuing to split
- Complications: highly-branching attributes
- Complications: overfitting and the need to prune (1)
- Complications: overfitting and the need to prune (2)
- Complications: missing values, numeric attributes
- Constructing decision trees: summary
- Agenda: constructing rules
- Constructing rules
- Generating a rule
- Rules vs. trees
- Constructing rules: general algorithm
- More about rules
- Association rules
- Constructing association rules
- Association rules: example
- Association rules: discussion
Topics Covered
- Simplicity first
- One attribute does all the work
- Complications: missing values
- Overfitting
- Evaluating the result
- Description of the method
- Statistical modeling
- Bayes's rule
- Weather data: probabilities
- Zero frequencies, missing values
- Numeric attributes
- "Naive" statistical model
- Constructing decision trees
- Continuing to split
- Highly-branching attributes
- Overfitting and the need to prune
- Constructing rules
- Rules versus trees
- General algorithm
- Association rules
Talk Citation
Witten, I. (2008, June 17). Data mining algorithms 1 [Video file]. In The Business & Management Collection, Henry Stewart Talks. Retrieved December 3, 2024, from https://doi.org/10.69645/CAQM1965.Export Citation (RIS)