{
  "workstream": "paper_qd",
  "topic": "Procedural Content Generation through Quality Diversity",
  "accessed": "2026-09-12",
  "evidence_policy": "同一论文的 HTML、PDF 和元数据页不是独立研究；只核对题录的页面不算全文阅读；所引个案实验均标为本文转述，未声称已核读全部被引原文。",
  "counts": {
    "exa_search_calls": 1,
    "exa_requested_results": 5,
    "sources_reviewed_skill_legacy_requested_count": 5,
    "raw_search_results_returned": 5,
    "canonical_unique_search_urls": 4,
    "exa_fetch_calls": 3,
    "unique_papers_read_in_full": 1,
    "full_text_representations_read": 2,
    "metadata_sources_checked": 2
  },
  "search_log": [
    {
      "tool": "web_search_exa",
      "query": "category:research paper Procedural Content Generation through Quality Diversity Gravina Khalifa Liapis 2019 full paper PDF",
      "numResults": 5,
      "results": [
        {
          "url": "https://comnplayscience.eu/wp-content/uploads/2019/10/Gravina-et-al.-2019-Procedural-Content-Generation-through-Quality-Dive.pdf",
          "disposition": "同一论文的备用 PDF；仅看到搜索片段，未下载或全文核读"
        },
        {
          "url": "https://arxiv.org/abs/1907.04053",
          "disposition": "Exa 提取元数据，核对作者、题名、提交日期和 DOI"
        },
        {
          "url": "https://doi.org/10.1109/cig.2019.8848053",
          "disposition": "仅搜索结果；DOI 由 arXiv 元数据进一步核对"
        },
        {
          "url": "https://antoniosliapis.com/articles/pcgqd.php",
          "disposition": "全文核读"
        },
        {
          "url": "https://arxiv.org/abs/1907.04053?allowRedirect=1&lfid=100103type%3D1%26amp%3Bq%3Dkhalifa+university&luicode=10000011&u=https%3A%2F%2Farxiv.org%2Fabs%2F1907.04053&url=https%3A%2F%2Farxiv.org%2Fabs%2F1907.04053",
          "canonical_url": "https://arxiv.org/abs/1907.04053",
          "disposition": "跟踪参数重复，合并"
        }
      ]
    }
  ],
  "sources": [
    {
      "id": "P02-PDF",
      "url": "https://antoniosliapis.com/papers/procedural_content_generation_via_quality_diversity.pdf",
      "title": "Procedural Content Generation through Quality Diversity",
      "authors": [
        "Daniele Gravina",
        "Ahmed Khalifa",
        "Antonios Liapis",
        "Julian Togelius",
        "Georgios N. Yannakakis"
      ],
      "year": 2019,
      "doi": "10.1109/CIG.2019.8848053",
      "evidence_type": "作者提供的论文全文，方法综述/立场论文；不是本项目的实验结果",
      "read_coverage": "8 页全文逐页提取并核读，包含摘要、§I–VI、致谢、51 条参考文献目录；图 1–5、表 I 已渲染目视核对。参考文献仅核对条目，没有声称读过全部被引论文。",
      "pages": 8,
      "page_locator_note": "物理 PDF 页码从 1 开始；作者 PDF 未显示正文页码。",
      "accessed": "2026-09-12",
      "access_method": "作者 publications.php 中核对 PDF 链接；HTTP 下载；pypdf 逐页提取；Poppler 渲染第 4–6 页",
      "local_file": "tmp/pdfs/pcgqd.pdf",
      "sha256": "eac57f6f0bb4992f5b2f0e57a593c658a682157a90cc5438970829519e244a44",
      "quality": "作者自站托管完整论文，适合确认该文提出什么；对被引案例的实验结果属于综述转述。",
      "claim_locators": [
        {
          "claim": "质量、行为距离/分区、局部竞争与硬约束",
          "section": "II-A/B",
          "pages": [
            1,
            2
          ]
        },
        {
          "claim": "ME、ME-NOV、MESB、CNS、CSS、CME、NS-LC、SS-LC 的概要",
          "section": "II-C",
          "pages": [
            2,
            3
          ]
        },
        {
          "claim": "批量效率、fitness-free、表达范围、人机协作与解释性",
          "section": "III-A–E",
          "pages": [
            3,
            4
          ]
        },
        {
          "claim": "应用算法、特征、质量的横向分类",
          "section": "IV/Table I",
          "pages": [
            4,
            5,
            6
          ]
        },
        {
          "claim": "Mario 案例八个二元机制 256 格、平均约 100 格；图 1 仅展示六个机制",
          "section": "III-C/Fig.1、IV-C",
          "pages": [
            4,
            5
          ],
          "caution": "被引案例 [19] 的综述转述，未独立复现实验"
        },
        {
          "claim": "CSS 的 surprise 指对历史种群预测的偏离，武器案例使用模拟死亡位置",
          "section": "II-C5/8、IV-F",
          "pages": [
            3,
            6
          ]
        },
        {
          "claim": "高维、分箱粒度、仿真成本、多风格测试代理",
          "section": "V",
          "pages": [
            7
          ]
        },
        {
          "claim": "所综述案例未明确把解释性作为研究目标",
          "section": "IV-J",
          "pages": [
            6
          ]
        }
      ],
      "visual_checks": [
        {
          "figure": "Figure 1",
          "page": 4,
          "observation": "6 个二元机制组合的热图，存在空区域；不可误当正文完整 8 维 256 格档案。"
        },
        {
          "figure": "Figure 2",
          "page": 4,
          "observation": "三种形态的弹幕实例，图示仅作表现差异，不是玩家难度曲线。"
        },
        {
          "figure": "Table I",
          "page": 5,
          "observation": "不同算法与应用按 D/P/LC/C、发散与质量特征列示。"
        },
        {
          "figure": "Figure 3",
          "page": 5,
          "observation": "三个 Mario 场景，结合正文核对按触发机制区分。"
        },
        {
          "figure": "Figure 4",
          "page": 5,
          "observation": "Sentient Sketchbook 画布与右侧候选建议界面。"
        },
        {
          "figure": "Figure 5",
          "page": 6,
          "observation": "两种武器实例；图本身不测量玩家惊喜。"
        }
      ]
    },
    {
      "id": "P02-HTML",
      "url": "https://antoniosliapis.com/articles/pcgqd.php",
      "title": "Antonios Liapis: Procedural Content Generation through Quality Diversity",
      "evidence_type": "作者提供的同文 HTML 全文",
      "read_coverage": "Exa maxCharacters=100000 提取约 48,306 字符；全文各节、表 I、参考文献读取，与 PDF 对照。",
      "pages": null,
      "accessed": "2026-09-12",
      "quality": "作者本人托管；与 P02-PDF 属于同一项研究，不作为独立佐证。",
      "same_work_as": "P02-PDF"
    },
    {
      "id": "P02-BIB",
      "url": "https://antoniosliapis.com/publications.php?bib=gravina2019pcgqd#gravina2019pcgqd",
      "title": "Antonios Liapis: Publications — gravina2019pcgqd",
      "evidence_type": "作者文献目录中的单条题录",
      "read_coverage": "Exa 的 8000 字符开头截取未到目标条目；另经 HTTP 读取并定位 gravina2019pcgqd，只核对本条目及 PDF 路径。",
      "pages": null,
      "accessed": "2026-09-12",
      "quality": "作者自述的出版题录和下载入口；未把整份文献目录算作全文精读。",
      "same_work_as": "P02-PDF"
    },
    {
      "id": "P02-ARXIV",
      "url": "https://arxiv.org/abs/1907.04053",
      "title": "[1907.04053] Procedural Content Generation through Quality Diversity",
      "evidence_type": "预印本文献元数据",
      "read_coverage": "Exa fetch 核对题名、作者、2019-07-09 提交记录与 IEEE DOI；没有把元数据页当作另一篇论文。",
      "pages": null,
      "accessed": "2026-09-12",
      "quality": "arXiv 作者提交记录，适合核对题录和版本；不提供额外独立实验佐证。",
      "same_work_as": "P02-PDF"
    }
  ],
  "output": "docs/level-design-knowledge/02-pcgqd.md"
}