Uplug is a great tool, I use it to align English and Macedonian texts. It essentially builds on Giza ++, adding so-called alignments. This advanced setup actually combines tooltip alignments with Giza ++ and performs 3 such iterations. The more hints (pos-tags, lemmas ...), the better the result. But I have to mention that you should not expect to get fundamentally different results, just using Giza ++.
In any case, if you plan to seriously study the topic of SMT, I suggest you read the article (profile) about Uplug, it will be very useful for you.
msaveski
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