Training SMT incrementally

For word alignments

Force Alignment: http://geek.kyloo.net/software/doku.php/mgiza:forcealignment

MGIZA++: http://geek.kyloo.net/software/doku.php/mgiza:overview and http://sourceforge.net/projects/mgizapp/

For translation models

Stream-based Translation Models for Statistical Machine Translation

Abby Levenberg, Chris Callison-Burch and Miles Osborne, NAACL 2010.

For language models

Stream-based Randomised Language Models for SMT

Abby Levenberg and Miles Osborne, EMNLP 2009.