Feature Selection using Matlab 1.0 |
Date Added: September 02, 2013 | Visits: 451 |
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The DEMO includes 5 feature selection algorithms:d-deD? Sequential Forward Selection (SFS)d-deD? Sequential Floating Forward Selection (SFFS)d-deD? Sequential Backward Selection (SBS)d-deD? Sequential Floating Backward Selection (SFBS)d-deD? ReliefFTwo CCR estimation methods:d-deD? Cross-validationd-deD? ResubstitutionAfter selecting the best feature subset, the classifier obtained can be used for classifying any pattern. Figure: Upper panel is the pattern x feature matrix Lower panel left are the features selected Lower panel right is the CCR curve during feature selection steps Right panel is the classification results of some patterns.This software was developed using Matlab 7.5 and Windows XP.Copyright: D. Ververidis and C.Kotropoulos AIIA Lab, Thessaloniki, Greece, jimver@aiia.csd.auth.gr costas@aiia.csd.auth.grIn order to run the DEMO:In order to run the demo:- A PC with Windows XP is needed.- Use Matlab7.5 or later to run DEMO.m1) Select the d-de?finalvec.matd-deOao dataset (patterns x [features+1] matrix) from 'PatTargMatrices' folder. The last column of d-de?finalvec.matd-deOao are the targets.2) Press the run button on the panel. It is the second one.3) After the selection of the optimum feature set, select a set of patterns for classification using the open folder button (last button). It can be the same data-set that was used for training the feature selection algorithm REFERENCES:[1] D. Ververidis and C. Kotropoulos, "Fast and accurate feature subset selection applied into speech emotion recognition," Els. Signal Process., vol. 88, issue 12, pp. 2956-2970, 2008.[2] D. Ververidis and C. Kotropoulos, "Information loss of the Mahalanobis distance in high dimensions: Application to feature selection," IEEE Trans. Pattern Analysis and Machine Intelligence, vol. 31, no. 12, pp. 2275-2281, 2009.
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License: Freeware | Size: 3.23 MB |
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