Explainer Articles
In-depth explanations of AI concepts, architectures, and principles. Educational content that breaks down complex topics into understandable insights.
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What Are Similarity Search Algorithms and How Nearest Neighbor Methods Find Matching Vectors
Similarity search algorithms find matching vectors by measuring geometric distance, not keywords. Learn how HNSW, PQ, …
What Is an Embedding and How Neural Networks Encode Meaning into Vectors
Embeddings turn words into vector coordinates where distance equals meaning. Learn the geometry, training mechanics, and …
What Is Decoder-Only Architecture and How Autoregressive LLMs Generate Text Token by Token
Decoder-only architecture powers every major LLM today. Learn how causal masking, KV cache, and autoregressive …
What Is Encoder-Decoder Architecture and How Sequence-to-Sequence Models Process Language
Encoder-decoder models compress input sequences into vectors and generate outputs token by token. Learn how seq2seq …
What Is Tokenizer Architecture and How BPE, WordPiece, and Unigram Encode Text for LLMs
Tokenizer architecture determines how LLMs read text. Learn how BPE, WordPiece, and Unigram split text into subword …
Why Decoder-Only Beat Encoder-Decoder: Scaling Laws, Data Efficiency, and the Simplicity Advantage
Decoder-only models won the scaling race by doing less. Learn how a simpler training objective, scaling laws, and MoE …
Attention Mechanism: Scaled Dot-Product, Self vs Cross
Transformers use weighted averaging, not human-like focus: scaled dot-product, self-attention vs cross-attention, and …
From Embeddings to Attention: The Math You Need Before Studying Transformers
Master the math behind attention mechanisms — dot products, softmax, QKV matrices, and multi-head projections — before …
Prerequisites for Understanding Transformers: From Embeddings to Matrix Multiplication
Master the math behind transformers: embeddings, matrix multiplication, positional encoding, and multi-head attention …
What Is the Transformer Architecture and How Self-Attention Really Works
The transformer architecture powers every major LLM. Learn how self-attention computes token relationships, why …
Why Standard Attention Breaks at Long Contexts: The O(n²) Bottleneck and Attention Sinks
Standard attention scales quadratically with sequence length. Learn why O(n²) breaks at long contexts, what attention …
Why Transformers Hit a Wall: Quadratic Scaling and the Memory Bottleneck
Transformer self-attention scales quadratically with sequence length. Understand the O(n²) memory wall, KV cache costs, …