On combining classifiers
Kittler, J.; Hatef, M.; Duin, R.P.W.; Matas, J.
Pattern Analysis and Machine Intelligence, IEEE Transactions on
Volume 20, Issue 3, Mar 1998 Page(s):226 - 239
Digital Object Identifier 10.1109/34.667881
Summary:We develop a common theoretical framework for combining
classifiers which use distinct pattern representations and show that
many existing schemes can be considered as special cases of compound
classification where all the pattern representations are used jointly to
make a decision. An experimental comparison of various classifier
combination schemes demonstrates that the combination rule developed
under the most restrictive assumptions-the sum rule-outperforms other
classifier combinations schemes. A sensitivity analysis of the various
schemes to estimation errors is carried out to show that this finding
can be justified theoretically
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