The alignment

  All text are first aligned on sentence level, using a program based upon the algorithm putforth by Church and Gale. This algorithm is built upon the assumption that a short sentence will be translated with a short sentence and long with a long sentence. A more detailed description of this algorithm is described in Gale and Church GaleChurch93.

The different types of aligned pairs are: 1-0, 0-1, 1-1, 2-1, 1-2, 2-2, 3-1, 1-3. We have found the percentage of correct alignments to be above 95%. Within the 5% of misstakes that the program makes we mostly find examples of 1-0 or 0-1 alignment which are easily to correct. All 3-1 or 1-3 alignments are made manually as the program used today cannot automatically deside whether it should be a case of 1-0 followed by a 2-1 or a 3-1.