VORTRAG
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Oesterreichisches Forschungsinstitut fuer Artificial Intelligence(OeFAI)
Schottengasse 3, A-1010 Wien
Tel.: +43-1-53361120, Fax: +43-1-5336112-77, Email: sec@oefai.at
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Professor Dr. Saso Dzeroski
Jozef Stefan Institute, Ljubljana, Slovenia
IS COMBINING CLASSIFIERS BETTER THAN SELECTING THE BEST ONE?
We empirically evaluate several state-of-the-art methods for
constructing ensembles of classifiers with stacking and show that
they perform (at best) comparably to selecting the best classifier
from the ensemble by cross validation. We then propose a new method
for stacking, that uses multi-response model trees at the meta-level,
and show that it clearly outperforms existing stacking approaches,
as well as selecting the best classifier from the ensemble by cross
validation.
Zeit: Montag, 18. Feber 2002, 18:30 Uhr pktl.
Ort: Oesterreichisches Forschungsinstitut
fuer Artificial Intelligence
Schottengasse 3, 1010 Wien.
OESTERREICHISCHES FORSCHUNGSINSTITUT
FUER ARTIFICIAL INTELLIGENCE
o.Univ.-Prof. Dr. Robert Trappl