If we compare our method with the method of <cite>Conneau et al. (2018)</cite> on the more challenging Dinu-Artexe dataset in Table 3 , we see here also our method performs better than <cite>their method</cite> in all the four translation tasks involving European language pairs. For example, <cite>their method</cite> had difficulties in converging for En from/to Es translations; for En→Es, it converges only 2 times out of 10 attempts, while for Es→En it did not converge a single time in 10 attempts. Compared to <cite>that</cite>, our method was more robust, converging 4 times out of 10 attempts.