Institute of Computer Software;
Baoji University of Arts and Sciences;
Baoji 721007;
P. R. China;
Institute of Computational Information Science;
Baoji University of Arts and Sciences;
Baoji 721007;
P. R. China;
automatic image annotation; semi-supervised learning; probabilistic latent semantic analysis(PLSA); transductive support vector machine(TSVM); image segmentation; image retrieval;