chi square feature analysis 1.0

Date Added: April 16, 2013 | Visits: 385

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parameter 1 is feature value (discrete), parameter 2 is the corresponding labelsthe reference paper is: S. Wu, P. A. Flach, Feature selection with labeled and unlabeled data, available athttp://ai.ijs.si/branax/iddm-2002_proceedings/Wu.pdfrelevant paper is: Technical Note: Bias in Information-Based Measures in Decision Tree Induction.I programmed the file according to the first paper, but I find that the results are not reasonable, wondering if it is the drawback of chi square feature analysis method or some bugs in my file. Hope somebody can point out.The computed chi value needs to compared with chi square table to see how important are the features. chi square table:http://www.ma.utexas.edu/users/davis/375/p...bles/chisq.html

Requirements: No special requirements

Platforms: Matlab

Keyword: Analysis, Drawback, Method, Programmed, Reasonable, Results, Square, Wondering

Users rating: 0/10

License: Shareware

Size: 10 KB

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