@inproceedings{Schaul2011coherence,
author = {Schaul, Tom and Pape, Leo and Glasmachers, Tobias and Graziano, Vincent and Schmidhuber, J\"{u}rgen},
booktitle = {Fourth Conference on Artificial General Intelligence (AGI)},
title = {{Coherence Progress: A Measure of Interestingness Based on Fixed Compressors}},
year = {2011}
}