Survey: Weighted Extended Top-down Tree Transducers Part II—Application in Machine Translation

  • Authors:
  • Andreas Maletti

  • Affiliations:
  • (Correspd.) (Fin. supp. by the German Res. Fdn. (DFG) grant MA/4959/1-1 and the Ministerio de Educación y Ciencia (MEC) grant JDCI-2007-760, Spain) Universität Stuttgart, Inst. for Natl. ...

  • Venue:
  • Fundamenta Informaticae - Non-Classical Models of Automata and Applications II
  • Year:
  • 2011

Quantified Score

Hi-index 0.00

Visualization

Abstract

In this second part of the survey, we present the application of weighted extended top-down tree transducers in machine translation, which is the automatic translation of natural language texts. We present several formal properties that are relevant to machine translation and evaluate the weighted extended top-down tree transducer along those criteria. In addition, we demonstrate how to extract rules for an extended top-down tree transducer from existing linguistic data and how to obtain suitable rule weights automatically from similar information. Overall, the aim of the survey is twofold. It should provide a synopsis that illustrates how theory (tree transducers) and practice (machine translation) interact on this particular example. Secondly, it presents a uniform and simplified treatment of the rule extraction and training algorithms that is accessible to the nonexpert. Additional details can be found in the original results that are referenced throughout the text.