My old research group at UVa worked on (almost) exactly that problem. See: http://www.cs.virginia.edu/~weimer/p/p109-weimer.pdf http://www.cs.virginia.edu/~wei

My old research group at UVa worked on (almost) exactly that problem. See: http://www.cs.virginia.edu/~weimer/p/p109-weimer.pdf http://www.cs.virginia.edu/~weimer/p/p109-weimer.pdf