Editors’ foreword to the special issue on human factors in neural machine translation
Editors’ foreword to the special issue on human factors in neural machine translation
复制标题
神经机器翻译中人为因素特刊的编辑前言
作者:
Sheila Castilho;F. Gaspari;Joss Moorkens;Maja Popovic;Antonio Toral
Over the past 5 years the machine translation (MT) community has become aware of the potential of neural machine translation (NMT) to sustain the increases in output quality that had appeared to plateau when using statistical MT (SMT) (Kenny 2018). This has led an increasing number of MT providers and research groups to focus their energies and resources on developing NMT systems. Early studies on NMT quality demonstrated that, in general, this MT paradigm yields higher automatic evaluation metric scores than its predecessor, SMT (Bahdanau et al. 2014; Jean et al. 2015; Bojar et al. 2016; Koehn and Knowles 2017). NMT has also been shown to provide a jump in fluency when compared with SMT (Bentivogli et al. 2016; Toral and Sánchez-Cartagena 2017). This increased fluency has quickly made NMT the preferred MT paradigm for assimilation, as is evident from the move to NMT by many major online MT providers. Where MT for dissemination is concerned, when text is “machine translated as an intermediate step in production” (Forcada 2010), we might reasonably assume that the reported increase in quality would result in a concomitant productivity boost. However, studies such as Castilho et al. (2018) reported that NMT delivers only minor improvements in productivity and technical effort, relative to the improved scores using automatic metrics and human fluency evaluation, when comparing with phrase-based SMT (PBSMT) systems. The rule of thumb for MT deployment suggested by Way (2018) is that “the degree of human involvement required—or warranted—in a particular translation scenario will depend on the purpose, value and shelf-life of the content.” However, positive evaluations of NMT for assimilation alongside occasionally hyperbolic reports in the media (as reported in Castilho et al. 2017; Toral et al. 2018) have