机器学习原理
Can you explain the backpropagation algorithm and its role in training neural networks?
原题What is a convolutional neural network (CNN) and how does it work?
原题What is transfer learning and how is it used in practice?
原题Walk through a transformer block. Why divide attention scores by √dₖ?
原题What is the KV cache and why does it matter for inference? How does its memory scale?
原题Compare MHA, MQA, and GQA. Why did Llama adopt GQA?
原题What is RoPE and why are rotary embeddings preferred over learned positional embeddings?
原题When would you choose RAG vs fine-tuning vs long-context?
原题Compare SFT, DPO, GRPO, and RLVR — data requirements, what extra models each needs, and when to use each.
原题Why does GRPO drop the critic network, and how does it estimate advantage?
原题
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