author= {Popovi\\'{c}, Maja and Ney, Hermann},
title= {Word Error Rates: Decomposition over POS classes and Applications for Error Analysis},
booktitle= {Second Workshop on Statistical Machine Translation},
year= 2007,
pages= {48-55},
publisher= {Association for Computational Linguistics},
address= {Prague, Czech Republic},
month= jun,
booktitlelink= {http://www.statmt.org/wmt07/},
pdf = {https://www-i6.informatik.rwth-aachen.de/publications/downloader.php?id=317&row=pdf}