NVIDIA Applied Deep Learning Research interview questions

2 rounds of phone interviews. first one was with VP of Applied DL research. Talked about my recent projects in DL, specifically in applied medical DL. There were some general questions on my routine model architecture design, (regularization, training, parameter tuning etc.). I asked about ongoing projects. The second round was with a senior engineer from the same team. it was a coding interview on CoderPad(the research team uses mostly python). 2 questions, first one is basically the implementation of the equivalent of scipy.stats.rv_discrete.