1. Ambati V, Vogel S, Carbonell J (2010) Active learning and crowd-sourcing for machine translation. In: Proceedings of the seventh international conference on language resources and evaluation (LREC 2010), 17–23 May 2010, Valletta, pp 2169–2174
2. Ananthakrishnan S, Prasad R, Stallard D, Natarajan P (2010) Discriminative sample selection for statistical machine translation. In: Proceedings of the 2010 conference on empirical methods in natural language processing (EMNLP-2010), MIT, Massachusetts, 9–11 Oct 2010, pp 626–635
3. Avramidis E (2013) Rankeval: open tool for evaluation of machine-learned ranking. Prague Bull Math Linguist (PBML) 100:63–72
4. Avramidis E (2016) Qualitative: python tool for MT quality estimation supporting server mode and hybrid MT. Prague Bull Math Linguist 106:147–158
5. Bach N, Huang F, Al-Onaizan Y (2011) Goodness: a method for measuring machine translation confidence. In: ACL11, Portland, pp 211–219