9. A memory having computer-executable instructions embodied thereon, the computer-executable instructions to configure a computer to perform acts comprising: subspace learning for ranking; and returning a search based at least in part on the subspace learning for ranking.
9. A memory having computer-executable instructions embodied thereon, the computer-executable instructions to configure a computer to perform acts comprising: subspace learning for ranking; and returning a search based at least in part on the subspace learning for ranking. 10. The memory as recited in claim 9 wherein the subspace learning for ranking is tailored for ranking based at least in part on labeled relevance information obtained during the training process of subspace learning.