A Smorgasbord of Features for Statistical Machine Translation

نویسندگان

  • Franz Josef Och
  • Daniel Gildea
  • Sanjeev Khudanpur
  • Anoop Sarkar
  • Kenji Yamada
  • Alexander M. Fraser
  • Shankar Kumar
  • Libin Shen
  • David Smith
  • Katherine Eng
  • Viren Jain
  • Zhen Jin
  • Dragomir R. Radev
چکیده

We describe a methodology for rapid experimentation in statistical machine translation which we use to add a large number of features to a baseline system exploiting features from a wide range of levels of syntactic representation. Feature values were combined in a log-linear model to select the highest scoring candidate translation from an n-best list. Feature weights were optimized directly against the BLEU evaluation metric on held-out data. We present results for a small selection of features at each level of syntactic representation.

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تاریخ انتشار 2004