The Mathematics of Statistical Machine Translation: Parameter Estimation

Brown et al., 1993, The Mathematics of Statistical Machine Translation (Computational Linguistics)

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2 cards in “4.3 Intermodel interlude” · whole deck

4.3 Intermodel interlude

  1. What is fertility?
    The number of French words an English word connects to in an alignment: the usually gives one word (le, la, l’) but sometimes none; only gives one (seulement), two (ne … que) or none. Models 3–5 parameterize fertility directly.
  2. Describe the generative story behind Models 3–5.
    For each English word choose a fertility and a list of French words (its tablet; together, the tableau), then permute the tableau’s words into a French string. Several (tableau, permutation) pairs can give the same French string and alignment.

Source

  • Peter F. Brown, Stephen A. Della Pietra, Vincent J. Della Pietra and Robert L. Mercer. 1993. The Mathematics of Statistical Machine Translation: Parameter Estimation. In Computational Linguistics, pp. 263–311. https://aclanthology.org/J93-2003/