Transformer Deep Dive: Part 8 - Alternative Architectures
Beyond Transformers - State Space Models (SSMs), Mamba, Linear Attention, RWKV, and hybrid architectures that challenge the attention paradigm.
Deep dives into machine learning, transformers, and AI research. Technical tutorials and insights from my journey as a PhD researcher.
In-depth multi-part explorations of complex topics
A comprehensive journey from the original 2017 Transformer to modern LLMs like GPT-4 and LLaMA. Covering architecture changes, attention modifications, training improvements, and beyond.
Beyond Transformers - State Space Models (SSMs), Mamba, Linear Attention, RWKV, and hybrid architectures that challenge the attention paradigm.
The small details that matter - bias removal, tied embeddings, parallel attention and FFN computation, and initialization schemes in modern LLMs.
Production deployment techniques - KV-cache for avoiding redundant computation, quantization for memory efficiency, speculative decoding for faster generation, and continuous batching for throughput.
Modern training techniques for LLMs - AdamW optimizer, learning rate schedules, mixed precision training (FP16/BF16), gradient checkpointing, and distributed training strategies.
Evolution of the Feed-Forward Network - from ReLU to GELU, SwiGLU gated activations, and Mixture of Experts for scaling to trillion-parameter models.
Evolution of the attention mechanism - from sinusoidal to RoPE positional encoding, Multi-Query Attention, Grouped Query Attention, and the revolutionary FlashAttention algorithm.
How modern LLMs evolved from the original Transformer - decoder-only architecture, Pre-Layer Normalization, and RMSNorm. The fundamental architectural shifts that power GPT, LLaMA, and Mistral.
A deep dive into the original Transformer architecture from 'Attention Is All You Need' - the encoder-decoder structure, scaled dot-product attention, multi-head attention, and the design decisions that revolutionized NLP.