{
  "schema_version": 1,
  "builder_plan": {
    "scenario": "Your self-hosted model spends too long generating answers token by token.",
    "change": "Check whether a compatible draft model and serving integration exist before renting compute.",
    "baseline": "The same target with speculation off, then your existing drafter if you have one.",
    "steps": [
      "Locate the paper's implementation and check its license, model support, data needs, and hardware requirements. Stop here if you cannot obtain the required artifacts.",
      "Save a small set of representative product tasks and expected outcomes. Keep evaluation tasks out of any training or tuning, and choose quality and cost limits before running.",
      "Run the baseline and the proposed change on identical inputs. Keep other settings fixed and repeat paired runs to expose variation.",
      "Save per-task outputs, failures, timings, and all usage costs. Review regressions before expanding the test."
    ],
    "measure": "Accepted draft length, tokens per second, tail latency, output quality, and total GPU cost.",
    "decision": "Keep the change only if it meets your preselected quality and latency limits and improves the metric you care about after setup and operating costs. Otherwise retain the baseline. This is an exploration plan, not a validated recommendation."
  },
  "builder_review": null,
  "arxiv_id": "2608.14787",
  "title": "From Positionwise Confidence to Prefix Scheduling: Verifier Skipping in Speculative Decoding",
  "summary": "Replaces verification of every draft block with a lossy policy accepting contiguous high-confidence prefixes without the verifier. It requires diffusion speculative decoding, such as a DiffuCoder-7B drafter and a 32B target, which does not fit a single 24 GB GPU and is not supported by common serving frameworks. The approach assumes an existing SDD stack, and the paper finds a fragile scheduling signal because short skips can trigger extra drafting rounds.",
  "rationale": "A modest gain tied to a diffusion-speculative stack beyond small setups; worth following rather than adopting now.",
  "technique": "Skipping verification in diffusion speculative decoding",
  "family": "decodificacao_especulativa",
  "recommendation": "observar",
  "published": "2026-08-14",
  "as_of": "2026-10-18",
  "editorial_status": "indexed",
  "source_url": "https://arxiv.org/abs/2608.14787",
  "independent_implementations": 0,
  "total_implementations": 1,
  "stars": 5,
  "citations": 0,
  "claims": [
    {
      "claim_id": "claim-01",
      "statement": "Replaces verification of every draft block with a lossy policy accepting contiguous high-confidence prefixes without the verifier. It requires diffusion speculative decoding, such as a DiffuCoder-7B drafter and a 32B target, which does not fit a single 24 GB GPU and is not supported by common serving frameworks. The approach assumes an existing SDD stack, and the paper finds a fragile scheduling signal because short skips can trigger extra drafting rounds.",
      "basis": "inferred",
      "result": "",
      "baseline": "",
      "conditions": "",
      "source_url": "https://arxiv.org/abs/2608.14787",
      "source_page": null,
      "source_excerpt": ""
    },
    {
      "claim_id": "claim-02",
      "statement": "Reports 9.6%-13.5% fewer verifier calls with the same observed HumanEval pass@1 as Strict SDD; raw confidence saved the most calls.",
      "basis": "inferred",
      "result": "",
      "baseline": "",
      "conditions": "",
      "source_url": "https://arxiv.org/abs/2608.14787",
      "source_page": null,
      "source_excerpt": ""
    }
  ],
  "exposure_map": [
    {
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      "finding": "",
      "interpretation": "",
      "limitation": "",
      "next_check": "",
      "source_url": "",
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    {
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      "limitation": "",
      "next_check": "",
      "source_url": "",
      "source_page": null,
      "source_excerpt": ""
    },
    {
      "dimension": "latency",
      "basis": "not_evaluated",
      "finding": "",
      "interpretation": "",
      "limitation": "",
      "next_check": "",
      "source_url": "",
      "source_page": null,
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    },
    {
      "dimension": "operations",
      "basis": "not_evaluated",
      "finding": "",
      "interpretation": "",
      "limitation": "",
      "next_check": "",
      "source_url": "",
      "source_page": null,
      "source_excerpt": ""
    },
    {
      "dimension": "compatibility",
      "basis": "not_evaluated",
      "finding": "",
      "interpretation": "",
      "limitation": "",
      "next_check": "",
      "source_url": "",
      "source_page": null,
      "source_excerpt": ""
    },
    {
      "dimension": "security",
      "basis": "not_evaluated",
      "finding": "",
      "interpretation": "",
      "limitation": "",
      "next_check": "",
      "source_url": "",
      "source_page": null,
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    },
    {
      "dimension": "data_and_training",
      "basis": "not_evaluated",
      "finding": "",
      "interpretation": "",
      "limitation": "",
      "next_check": "",
      "source_url": "",
      "source_page": null,
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    },
    {
      "dimension": "reproducibility",
      "basis": "not_evaluated",
      "finding": "",
      "interpretation": "",
      "limitation": "",
      "next_check": "",
      "source_url": "",
      "source_page": null,
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    }
  ],
  "risks": [],
  "minimum_test": [],
  "open_questions": [],
  "independent_tests": [],
  "lab_reproductions": [],
  "report_available": false,
  "validation_tier": "unknown",
  "evidence_tier": "unknown",
  "infrastructure_basis": "unknown",
  "equations": [
    {
      "anchor": "S4.E3",
      "label": "(3)",
      "section": "4 Confidence-Guided Verifier Skipping",
      "role": "proposed_method",
      "latex": "\\widehat{K}=\\max\\!\\left\\{k\\!\\in\\!\\{1,\\ldots,\\gamma\\}:B_{k}\\geq\\eta_{b},\\;C_{k}\\geq\\eta_{c}\\right\\},",
      "mathml": "<math display=\"block\"><mrow><mover accent=\"true\"><mi>K</mi><mo>^</mo></mover><mo>=</mo><mpadded width=\"1.808em\"><mi>max</mi></mpadded><mrow><mo>{</mo><mi>k</mi><mo lspace=\"0.108em\" rspace=\"0.108em\">∈</mo><mrow><mo stretchy=\"false\">{</mo><mn>1</mn><mo>,</mo><mi mathvariant=\"normal\">…</mi><mo>,</mo><mi>γ</mi><mo rspace=\"0.278em\" stretchy=\"false\">}</mo></mrow><mo rspace=\"0.278em\">:</mo><msub><mi>B</mi><mi>k</mi></msub><mo>≥</mo><msub><mi>η</mi><mi>b</mi></msub><mo rspace=\"0.447em\">,</mo><msub><mi>C</mi><mi>k</mi></msub><mo>≥</mo><msub><mi>η</mi><mi>c</mi></msub><mo>}</mo></mrow><mo>,</mo></mrow></math>",
      "context": "Given thresholds <math display=\"inline\"><msub><mi>η</mi><mi>b</mi></msub></math> and <math display=\"inline\"><msub><mi>η</mi><mi>c</mi></msub></math>, the policy selects the longest prefix that satisfies both gates:",
      "headline": "",
      "explanation": "",
      "objective": "",
      "symbols": {},
      "evidence": "",
      "evidence_url": "",
      "source_url": ""
    },
    {
      "anchor": "S4.E5",
      "label": "(5)",
      "section": "4 Confidence-Guided Verifier Skipping",
      "role": "proposed_method",
      "latex": "a_{K} =\\Pr(L\\geq K\\mid\\mathcal{F})=\\prod_{j=1}^{K}s_{j}, \\\\ s_{j} =\\frac{a_{j}}{a_{j-1}}\\quad\\text{when }a_{j-1}>0,\\qquad a_{0}=1.",
      "mathml": "<math display=\"block\"><mrow><msub><mi>a</mi><mi>K</mi></msub><mrow><mrow><mphantom></mphantom><mo>=</mo><mrow><mi>Pr</mi><mo>⁡</mo><mrow><mo stretchy=\"false\">(</mo><mrow><mi>L</mi><mo>≥</mo><mi>K</mi></mrow><mo fence=\"true\" lspace=\"0em\" rspace=\"0em\">∣</mo><mi>ℱ</mi><mo stretchy=\"false\">)</mo></mrow></mrow><mo>=</mo><mrow><mstyle displaystyle=\"true\"><munderover><mo movablelimits=\"false\">∏</mo><mrow><mi>j</mi><mo>=</mo><mn>1</mn></mrow><mi>K</mi></munderover></mstyle><msub><mi>s</mi><mi>j</mi></msub></mrow></mrow><mo>,</mo></mrow></mrow></math><math display=\"block\"><mrow><msub><mi>s</mi><mi>j</mi></msub><mrow><mo>=</mo><mstyle displaystyle=\"true\"><mfrac><msub><mi>a</mi><mi>j</mi></msub><msub><mi>a</mi><mrow><mi>j</mi><mo>−</mo><mn>1</mn></mrow></msub></mfrac></mstyle><mtext>when </mtext><mi>a</mi><msub><mrow></mrow><mrow><mi>j</mi><mo>−</mo><mn>1</mn></mrow></msub><mo>&gt;</mo><mn>0</mn><mo rspace=\"2.167em\">,</mo><mi>a</mi><msub><mrow></mrow><mn>0</mn></msub><mo>=</mo><mn>1</mn><mo lspace=\"0em\">.</mo></mrow></mrow></math>",
      "context": "Marginal and conditional survival encode the same prefix event at different levels of factorization. In particular,",
      "headline": "",
      "explanation": "",
      "objective": "",
      "symbols": {},
      "evidence": "",
      "evidence_url": "",
      "source_url": ""
    },
    {
      "anchor": "S4.E8",
      "label": "(8)",
      "section": "4 Confidence-Guided Verifier Skipping",
      "role": "complexity",
      "latex": "\\frac{K}{c_{D}} >\\frac{A}{c_{D}+c_{V}}, \\\\ K >K^{\\star}:=A\\frac{c_{D}}{c_{D}+c_{V}}.",
      "mathml": "<math display=\"block\"><mrow><mstyle displaystyle=\"true\"><mfrac><mi>K</mi><msub><mi>c</mi><mi>D</mi></msub></mfrac></mstyle><mrow><mrow><mphantom></mphantom><mo>&gt;</mo><mstyle displaystyle=\"true\"><mfrac><mi>A</mi><mrow><msub><mi>c</mi><mi>D</mi></msub><mo>+</mo><msub><mi>c</mi><mi>V</mi></msub></mrow></mfrac></mstyle></mrow><mo>,</mo></mrow></mrow></math><math display=\"block\"><mrow><mi>K</mi><mrow><mrow><mphantom></mphantom><mo>&gt;</mo><msup><mi>K</mi><mo>⋆</mo></msup><mo>:=</mo><mrow><mi>A</mi><mo lspace=\"0em\" rspace=\"0em\">​</mo><mstyle displaystyle=\"true\"><mfrac><msub><mi>c</mi><mi>D</mi></msub><mrow><msub><mi>c</mi><mi>D</mi></msub><mo>+</mo><msub><mi>c</mi><mi>V</mi></msub></mrow></mfrac></mstyle></mrow></mrow><mo lspace=\"0em\">.</mo></mrow></mrow></math>",
      "context": "To isolate the local break-even condition, we omit policy overhead and compare a strict round that commits <math display=\"inline\"><mi>A</mi></math> tokens on average at cost <math display=\"inline\"><mrow><msub><mi>c</mi><mi>D</mi></msub><mo>+</mo><msub><mi>c</mi><mi>V</mi></msub></mrow></math> with a skip of length <math display=\"inline\"><mi>K</mi></math> at cost <math display=\"inline\"><msub><mi>c</mi><mi>D</mi></msub></math>. The skip has higher local throughput exactly when",
      "headline": "",
      "explanation": "",
      "objective": "",
      "symbols": {},
      "evidence": "",
      "evidence_url": "",
      "source_url": ""
    }
  ],
  "equations_status": "selected",
  "core_kind": "formula",
  "equations_fetched_at": "2026-09-17",
  "equations_source_url": "",
  "equations_source_sha256": "",
  "exposures_reviewed_at": "",
  "exposures_source_sha256": ""
}