schema: superpaper.ledger/v1
retired_ids: []
paper:
  id: derive-delegate
  title: Scaled attention
  authors: ["Fixture"]
  notes_language: zh
  source: {kind: excerpt}
coverage:
  mode: excerpt
questions:
  - {id: Q1, text: "缩放从哪来？", source: "excerpt"}
claims:
  - id: C1
    text: "1/√d_k 是改写，不是新算子"
    kind: theoretical
    status: core
    supports: [Q1]
definitions: []
assumptions: []
lemmas: []
symbols:
  - {name: Q, latex: "Q", meaning: "query", kind: value}
  - {name: K, latex: "K", meaning: "key", kind: value}
  - {name: dk, latex: "d_k", meaning: "key 维", kind: "shape parameter"}
derivations:
  - id: DER1
    claim: C1
    title: "缩放"
    expand: true
    figure: F3
    steps:
      - {id: S1, from: "QK^{\\top}", to: "QK^{\\top}/\\sqrt{d_k}", rule: scale}
figures:
  - id: F3
    claim: C1
    title: "缩放来自方差"
    grammar: derivation
    toolkit: superderive
    signals: [rewrite-figure]
    request: figures/F3/F3.request.md
    include: figures/F3/build/F3.pdf
    status: included
evidence: []
terms: []
source_assets: []