HAL 2015 (ghost_arxiv.pdf): https://hal.inria.fr/hal-01152231/document
TCIAIG 2016 (ghost.pdf): http://dx.doi.org/10.1109/TCIAIG.2016.2573199
All benchmarks have been moved (August 2017) on the repo: https://github.com/richoux/GHOST-benchmarks/tree/tciaig16