ID  - jf:ECML-09-QuickECOC
T1  - Efficient Decoding of Ternary Error-Correcting Output Codes for Multiclass Classification
A1  - Park, Sang-Hyeun
A1  - Fürnkranz, Johannes
ED  - Buntine, Wray L.
ED  - Grobelnik, Marko
ED  - Mladenić, Dunja
ED  - Shawe-Taylor, John
TI  - Proceedings of the 20th European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD 2009, Bled, Slovenia), Part II
Y1  - 2009
SP  - 189
EP  - 204
PB  - Springer
M2  - doi: 10.1007/978-3-642-04174-7_13
N2  - We present an adaptive decoding algorithm for ternary ECOC matrices which reduces the number of needed classifier evaluations for multiclass classification. The resulting predictions are guaranteed to be equivalent with the original decoding strategy except for ambiguous final predictions. The technique works for Hamming Decoding and several commonly used alternative decoding strategies. We show its effectiveness in an extensive empirical evaluation considering various code design types: Nearly in all cases, a considerable reduction is possible. We also show that the performance gain depends on the sparsity and the dimension of the ECOC coding matrix.
ER  -