Multi view semi supervised learning for image classification
With the massive growth of digital image data uploaded to the Internet, classifying each image into appropriate semantic category with respect to its image content for image index and image retrieval has become an increasingly difficult and laborious task. To deal with this issue, we propose a novel multi view semi supervised learning framework which leverages the information contained in pseudo labeled images to improve the prediction performance of image classification using multiple views of an image. In the training process, labeled images are first adopted to train view specific classifiers independently using uncorrelated and sufficient views, and each view specific classifier is then iteratively re trained with respect to a measure of confidence using initial labeled samples and additional pseudo labeled samples. In the classification process, the maximum entropy principle is utilized to assign appropriate category labels to unlabeled images via optimally trained view specific classifiers. Experimental results on a general purpose image database demonstrate the effectiveness and efficiency of the proposed multi view semi supervised image classification scheme.
Neurocomputing