Journal of Optimization Theory and Applications
Neural Computation
Reducing multiclass to binary: a unifying approach for margin classifiers
The Journal of Machine Learning Research
Stochastic Organization of Output Codes in Multiclass Learning Problems
Neural Computation
IEEE Transactions on Pattern Analysis and Machine Intelligence
An incremental node embedding technique for error correcting output codes
Pattern Recognition
Solving multiclass learning problems via error-correcting output codes
Journal of Artificial Intelligence Research
On the Decoding Process in Ternary Error-Correcting Output Codes
IEEE Transactions on Pattern Analysis and Machine Intelligence
Re-coding ECOCs without re-training
Pattern Recognition Letters
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In this paper, we present a first study which learns the ECOC matrix as well as dichotomizers simultaneously from data; these two steps are usually conducted independently in previous methods. We formulate our learning model as a sequence of concave-convex programming problems and develop an efficient alternative minimization algorithm to solve it. Extensive experiments over eight real data sets and one image analysis problem demonstrate the advantage of our model over other state-of-theart ECOC methods in multi-class classification.