Hi - The moses recaser appears to essentially be a word-for-word MT model, with nothing to keep it from reordering. And, in fact, I have found that it does so, in about 10% of my test sentences. Here's an example, before and after recasing. Note that it swaps "power" and "electric".
the results and based on the quantum 阱 power electric 耦合 characteristics of the concept of pressure is the doctrine of research results are consistent . The results and based on the quantum 阱 electric power 耦合 characteristics of the concept of pressure is the doctrine of research results are consistent . Is this to be expected? In this case, it's arguably an improvement (although the phrase "electric power" does not, in fact, occur in the reference sentence.) In many cases, however, it's doing the wrong thing for my data - if I score case-insensitively, BLEU actually goes down by a small amount. I found it surprising that the recaser would do more than what its name suggests. Is this to be expected, and how could I prevent it? The recaser model does not appear to include a reordering table, but the moses.ini file does have a single weight for reoerdering, 0.6. Could I effectively turn off reordering by setting this to 0? (This may also be related to a recent question by Scott Olsson: "preventing reorderings with GIZA++".) Thanks. - John Burger MITRE _______________________________________________ Moses-support mailing list [email protected] http://mailman.mit.edu/mailman/listinfo/moses-support
