State of the art are these:
http://sva.cs.illinois.edu/pubs/KCoFI-Oakland-2014.pdf
http://dslab.epfl.ch/proj/cpi/
State of the art are these:
http://sva.cs.illinois.edu/pubs/KCoFI-Oakland-2014.pdf
http://dslab.epfl.ch/proj/cpi/