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Okay, so in this next segment of the 
class, we are going to look at 

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Phrase-Based Translation Systems. 
Phrase-Based Translation Systems first 

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came around in the late 1990s, and in 
some sense, they're a second generation 

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of Statistical Machine Translation 
Systems. 

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The first generation was the IBM models 
that we saw in the last lecture. 

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Phrase-Based Systems, build on the ideas 
form the IBM translation models, they 

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make direct use of the alignments that we 
saw last lecture, but they represent a 

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significant step forward. 
They also are widely used in modern 

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research and also industry based systems 
for translation.