A relative labeling importance estimation algorithm based on global-local label correlations for multi-label learning
method
同时考虑全局和局部标签相关性来估计相对标签重要性。
objective function
yi′\text{y}_i'yi′表示相对标记重要性矩阵的第iii行,Yi′Y_i'Yi′表示相对标记重要性矩阵的第iii列,∣yi∣|\text{y}_i|∣yi∣表示xix_ixi的相关标签数,G=[gil]n×lG=[g_{il}]_{n\times l}G=[gil]n×l,其中当yil=1\text{y}_{il}=1yil=1时,gil=∣yi∣g_{il}=|\text{y}_i|gil=∣yi∣,当yil=−1\text{y}_{il}=-1yil=−1时,gil=−1g_{il}=-1gil=−1
Construction of matrix SSS
Construction of matrix CCC and C′C'C′