国家自然科学基金(61272222, 61003116); 江苏省自然科学基金(BK2011782, BK2011005)
提出了多标记分类和标记相关性的联合学习(JMLLC),在JMLLC中,构建了基于类别标记变量的有向条件依赖网络,这样不仅使得标记分类器之间可以联合学习,从而增强各个标记分类器的学习效果,而且标记分类器和标记相关性可以联合学习,从而使得学习得到的标记相关性更为准确.通过采用两种不同的损失函数:logistic回归和最小二乘,分别提出了JMLLC-LR(JMLLC with logistic regression)和JMLLC-LS(JMLLC with least squares),并都拓展到再生核希尔伯特空间中.最后采用交替求解的方法求解JMLLC-LR和JMLLC-LS.在20个基准数据集上基于5种不同的评价准则的实验结果表明,JMLLC优于已提出的多标记学习算法.
In this paper, joint learning of multi-label classification and label correlations (JMLLC) is proposed. In JMLLC, a directed conditional dependency network is constructed based on class label variables. This not only enables joint learning of independent label classifiers to enhance the performance of label classifiers, but also allows joint learning of label classifiers and label correlations, thereby making the learned label correlations more accurate. JMLLC-LR (JMLLC with logistic regression) and JMLLC-LS (JMLLC with least squares), are proposed respectively by adopting two different loss functions: logistic regression and least squares, and are both extended to the reproducing kernel Hilbert space (RKHS). Finally, both JMLLC-LR and JMLLC-LS can be solved by alternating solution approaches. Experimental results on twenty benchmark data sets based on five different evaluation criteria demonstrate that JMLLC outperforms the state-of-the-art MLL algorithms.