I asked him do you need why I have mentioned in my cv? then he said he just wanted to know whether I know these things or not. Fine.... I started explaining each and every stuff and then I asked him do you want to know the internal architecture of skip gram and cbow model. then he said no... I'm fine with your explanation. and similarly, for d2v as well and wants to know how we have developed it in pyspark. again, he is ok on that.