Before revision:  Most existing approaches to multilingual ToD thus rely on (zero- or few-shot) cross-lingual transfer from resource-rich languages ( in ToD, this is basically only English), either by means of (i) machine translation or (ii) multilingual representation spaces. However, such approaches are currently not a viable solution for a large number of low-resource languages without parallel data and /or limited monolingual corpora .
After revision:  Most existing approaches to multilingual ToD thus rely on (zero- or few-shot) cross-lingual transfer from resource-rich languages ( in ToD, this is basically only English), either by means of (i) machine translation or multilingual representations. These approaches are currently not a viable solution for a large number of low-resource languages without parallel data and /or limited monolingual corpora .