This question connects why deep nets were hard to train with the cluster of tricks that solved it. What interviewers reward is the multiplicative-gradient cause and naming the real fixes: ReLU, He/Xavier init, residuals, normalization. Here is the answer.
Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.
This question connects why deep nets were hard to train with the cluster of tricks that solved it. What interviewers reward is the multiplicative-gradient cause and naming the real fixes: ReLU, He/Xavier init, residuals, normalization. Here is the answer.
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