13. A method as claim 12 recites, further comprising establishing a relevance space in the semantic space to determine relevance of the plurality of text vectors to the image vector, whereby text vectors in the relevance space of the semantic space are determined to be more relevant than text vectors outside of the relevance space of the semantic space.
14. A method as claim 13 recites, further comprising determining an order of relevance for the caption sentences by measuring a cosine similarity between the image vector and one or more of the plurality of text vectors.