3. The method of claim 2 , wherein ranking the unlabeled images comprises classifying, for each of the first image triplets, one of the two unlabeled images as being more visually similar to the first reference image, the classification being performed independent of the similarity feedback data.
3. The method of claim 2 , wherein ranking the unlabeled images comprises classifying, for each of the first image triplets, one of the two unlabeled images as being more visually similar to the first reference image, the classification being performed independent of the similarity feedback data. 4. The method of claim 3 , wherein generating a weighted feature vector comprises determining, based on the feature vectors and the classifications, weight values for a weighted feature vector, each weight value being indicative of an importance of a feature value for determining visual similarity between two images, the determination being performed independent of the similarity feedback data.