Nicola Ueffing Hermann Ney Bayes Decision Rules and Confidence Measures for Statistical Machine Translation. 70-81 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3230&spage=70 2004 conf/tal/2004 EsTAL db/conf/tal/estal2004.html#UeffingN04