Prerequisite chain

Prerequisites for PaddleOCR and Practical OCR

Topics you need before working through PaddleOCR and Practical OCR. Direct prerequisites are listed first; transitive prerequisites (the chain reachable through them) follow.

Direct prerequisites (1)

Document Intelligencelayer 5, tier 2

Reachable through the chain (8)

These topics are not directly cited as prerequisites but are reached transitively by following the chain upward. Working through the direct prerequisites pulls these in.

Multimodal RAGlayer 5, tier 2
Context Engineeringlayer 5, tier 2
KV Cachelayer 5, tier 2
Attention Mechanism Theorylayer 4, tier 2
Matrix Operations and Propertieslayer 0A, tier 1
Sets, Functions, and Relationslayer 0A, tier 1
Basic Logic and Proof Techniqueslayer 0A, tier 2
Softmax and Numerical Stabilitylayer 1, tier 1