To retrieve translation examples for a test sentence , ( Watanabe and Sumita , 2003 ) defined a metric based on the combination of edit distance and TF-IDF ( Manning and Sch Â¨ utze , 1999 ) as follows :
examplebased decoding for statistical machine translation
Taro Watanabe Eiichiro Sumita
The metric we consider here is derived from an example-based machine translation . To retrieve translation examples for a test sentence , ( Watanabe and Sumita , 2003 ) defined a metric based on the combination of edit distance and TF-IDF ( Manning and Sch Â¨ utze , 1999 ) as follows : where 0 ( 0 < 0 < 1 ) is an interpolation weight , fi ( i = 1 , 2 ) is a word sequence and can be also considered as a document .
To retrieve translation examples for a test sentence , ( @@CITATION ) defined a metric based on the combination of edit distance and TF-IDF ( Manning and Sch Â¨ utze , 1999 ) as follows :