Re: [Moses-support] translation probabilities in a string-to-tree system

2014-01-27 Thread Rico Sennrich
Marion Weller writes: > To my understanding, the target-side non-terminals are copied to the source-side string for technical reasons only in a string-to-tree system: shouldn't then source-side strings as in the example > above be counted as one string ("according to your [X]") instead of differe

Re: [Moses-support] Difference between lexical reordering and distortion?

2014-01-27 Thread Philipp Koehn
Hi, both models deal with reordering. The "distortion" model assigns a cost relative to the distance of jumps. The lexicalized reordering model learns for each phrase pair if it is likely to be reordered. Typically both are used. -phi On Sun, Jan 26, 2014 at 3:04 PM, Andrew wrote: > Hi, > > in

[Moses-support] translation probabilities in a string-to-tree system

2014-01-27 Thread Marion Weller
Hello, I have a question about the p(e|f) probabilities in a string-to-tree system: In the example below, the source-side strings "according to your [X][nn]" and "according to your [X][cnp]" are counted as different source-side phrases. (The probabilities for the source-side string "according to