PDF Vector AIで文書から法律引用を抽出・検証

• •Google Drive API認証情報

{
  "meta": {
    "instanceId": "placeholder"
  },
  "nodes": [
    {
      "id": "manual-trigger",
      "name": "手動トリガー",
      "type": "n8n-nodes-base.manualTrigger",
      "notes": "Start citation extraction",
      "position": [
        250,
        300
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "google-drive",
      "name": "Google ドライブ - Get Legal Document",
      "type": "n8n-nodes-base.googleDrive",
      "notes": "Retrieve document from Drive",
      "position": [
        450,
        300
      ],
      "parameters": {
        "fileId": "={{ $json.fileId }}",
        "operation": "download"
      },
      "typeVersion": 3
    },
    {
      "id": "pdfvector-extract",
      "name": "PDF Vector - Extract Citations",
      "type": "n8n-nodes-pdfvector.pdfVector",
      "notes": "Extract all citations",
      "position": [
        650,
        300
      ],
      "parameters": {
        "prompt": "Extract all legal citations from this document or image. Include case citations (with reporter and year), statute citations (with title and section), regulatory citations, and academic citations (with author, title, journal, and year). For each citation, include the surrounding context (1-2 sentences) and page number where it appears. Use OCR if this is a scanned legal document or image.",
        "schema": "{\"type\":\"object\",\"properties\":{\"documentInfo\":{\"type\":\"object\",\"properties\":{\"title\":{\"type\":\"string\"},\"documentType\":{\"type\":\"string\"},\"court\":{\"type\":\"string\"},\"date\":{\"type\":\"string\"},\"docketNumber\":{\"type\":\"string\"}}},\"caseCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"caseName\":{\"type\":\"string\"},\"reporter\":{\"type\":\"string\"},\"volume\":{\"type\":\"string\"},\"page\":{\"type\":\"string\"},\"year\":{\"type\":\"string\"},\"court\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"},\"pinCite\":{\"type\":\"string\"}}}},\"statuteCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"title\":{\"type\":\"string\"},\"code\":{\"type\":\"string\"},\"section\":{\"type\":\"string\"},\"subsection\":{\"type\":\"string\"},\"year\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}},\"regulatoryCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"title\":{\"type\":\"string\"},\"agency\":{\"type\":\"string\"},\"section\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}},\"academicCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"authors\":{\"type\":\"string\"},\"title\":{\"type\":\"string\"},\"journal\":{\"type\":\"string\"},\"volume\":{\"type\":\"string\"},\"page\":{\"type\":\"string\"},\"year\":{\"type\":\"string\"},\"doi\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}},\"otherCitations\":{\"type\":\"array\",\"items\":{\"type\":\"object\",\"properties\":{\"text\":{\"type\":\"string\"},\"type\":{\"type\":\"string\"},\"context\":{\"type\":\"string\"},\"pageNumber\":{\"type\":\"number\"}}}}},\"required\":[\"documentInfo\"],\"additionalProperties\":false}",
        "resource": "document",
        "inputType": "file",
        "operation": "extract",
        "binaryPropertyName": "data"
      },
      "typeVersion": 1
    },
    {
      "id": "analyze-citations",
      "name": "Analyze & Validate Citations",
      "type": "n8n-nodes-base.code",
      "notes": "Process citation data",
      "position": [
        850,
        300
      ],
      "parameters": {
        "jsCode": "// Process and validate citations\nconst citations = $input.first().json.data;\nconst citationAnalysis = {\n  summary: {\n    totalCitations: 0,\n    caseLaw: citations.caseCitations?.length || 0,\n    statutes: citations.statuteCitations?.length || 0,\n    regulations: citations.regulatoryCitations?.length || 0,\n    academic: citations.academicCitations?.length || 0,\n    other: citations.otherCitations?.length || 0\n  },\n  validation: {\n    invalidCitations: [],\n    warnings: []\n  },\n  academicDOIs: [],\n  citationNetwork: {}\n};\n\n// Calculate total\ncitationAnalysis.summary.totalCitations = \n  citationAnalysis.summary.caseLaw + \n  citationAnalysis.summary.statutes + \n  citationAnalysis.summary.regulations + \n  citationAnalysis.summary.academic + \n  citationAnalysis.summary.other;\n\n// Validate case citations\nif (citations.caseCitations) {\n  citations.caseCitations.forEach((cite, index) => {\n    // Check for required fields\n    if (!cite.reporter || !cite.volume || !cite.page) {\n      citationAnalysis.validation.invalidCitations.push({\n        type: 'case',\n        index,\n        citation: cite.caseName,\n        issue: 'Missing reporter, volume, or page'\n      });\n    }\n    \n    // Build citation network (track which cases cite which)\n    if (!citationAnalysis.citationNetwork[cite.caseName]) {\n      citationAnalysis.citationNetwork[cite.caseName] = {\n        citedIn: [citations.documentInfo.title],\n        pageNumbers: [cite.pageNumber]\n      };\n    }\n  });\n}\n\n// Validate statute citations\nif (citations.statuteCitations) {\n  citations.statuteCitations.forEach((cite, index) => {\n    if (!cite.title || !cite.section) {\n      citationAnalysis.validation.invalidCitations.push({\n        type: 'statute',\n        index,\n        citation: `${cite.title} ${cite.code}`,\n        issue: 'Missing title or section'\n      });\n    }\n  });\n}\n\n// Extract DOIs for academic fetching\nif (citations.academicCitations) {\n  citations.academicCitations.forEach(cite => {\n    if (cite.doi) {\n      citationAnalysis.academicDOIs.push(cite.doi);\n    } else {\n      // Try to construct search query for papers without DOI\n      citationAnalysis.validation.warnings.push({\n        type: 'academic',\n        citation: cite.title,\n        warning: 'No DOI found - manual search may be needed'\n      });\n    }\n  });\n}\n\n// Analyze citation patterns\nconst citationPatterns = {\n  mostCitedCases: [],\n  primaryAuthorities: [],\n  secondaryAuthorities: []\n};\n\n// Identify primary authorities (statutes and binding cases)\ncitationPatterns.primaryAuthorities = [\n  ...citations.statuteCitations?.map(c => `${c.title} ${c.code} § ${c.section}`) || [],\n  ...citations.caseCitations?.filter(c => c.court?.includes('Supreme'))?.map(c => c.caseName) || []\n];\n\n// Identify secondary authorities\ncitationPatterns.secondaryAuthorities = \n  citations.academicCitations?.map(c => `${c.authors}, ${c.title}`) || [];\n\nreturn [{\n  json: {\n    originalData: citations,\n    analysis: citationAnalysis,\n    patterns: citationPatterns,\n    doisToFetch: citationAnalysis.academicDOIs.join(','),\n    processedAt: new Date().toISOString()\n  }\n}];"
      },
      "typeVersion": 1
    },
    {
      "id": "has-dois",
      "name": "Has Academic DOIs?",
      "type": "n8n-nodes-base.if",
      "position": [
        1050,
        300
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{ $json.doisToFetch }}",
              "operation": "isNotEmpty"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "pdfvector-fetch",
      "name": "PDF Vector - Fetch Papers",
      "type": "n8n-nodes-pdfvector.pdfVector",
      "notes": "Retrieve academic papers",
      "position": [
        1250,
        250
      ],
      "parameters": {
        "ids": "={{ $json.doisToFetch }}",
        "fields": [
          "title",
          "abstract",
          "authors",
          "year",
          "doi",
          "pdfURL",
          "totalCitations"
        ],
        "resource": "academic",
        "operation": "fetch"
      },
      "typeVersion": 1
    },
    {
      "id": "generate-report",
      "name": "Generate Citation Report",
      "type": "n8n-nodes-base.code",
      "notes": "Create final report",
      "position": [
        1450,
        300
      ],
      "parameters": {
        "jsCode": "// Generate comprehensive citation report\nconst citationData = $node['Has Academic DOIs?'].json;\nconst academicPapers = $json.publications || [];\n\n// Create citation report\nlet report = `# Legal Citation Analysis Report\\n\\n`;\nreport += `**Document:** ${citationData.originalData.documentInfo.title}\\n`;\nreport += `**Type:** ${citationData.originalData.documentInfo.documentType}\\n`;\nreport += `**Date:** ${citationData.originalData.documentInfo.date}\\n\\n`;\n\nreport += `## Citation Summary\\n\\n`;\nreport += `- **Total Citations:** ${citationData.analysis.summary.totalCitations}\\n`;\nreport += `- **Case Law:** ${citationData.analysis.summary.caseLaw}\\n`;\nreport += `- **Statutes:** ${citationData.analysis.summary.statutes}\\n`;\nreport += `- **Regulations:** ${citationData.analysis.summary.regulations}\\n`;\nreport += `- **Academic:** ${citationData.analysis.summary.academic}\\n`;\nreport += `- **Other:** ${citationData.analysis.summary.other}\\n\\n`;\n\n// Add validation issues\nif (citationData.analysis.validation.invalidCitations.length > 0) {\n  report += `## Citation Issues\\n\\n`;\n  citationData.analysis.validation.invalidCitations.forEach(issue => {\n    report += `- **${issue.type}:** ${issue.citation} - ${issue.issue}\\n`;\n  });\n  report += `\\n`;\n}\n\n// Add case law section\nif (citationData.originalData.caseCitations?.length > 0) {\n  report += `## Case Law Citations\\n\\n`;\n  citationData.originalData.caseCitations.forEach(cite => {\n    report += `### ${cite.caseName}\\n`;\n    report += `- **Citation:** ${cite.volume} ${cite.reporter} ${cite.page} (${cite.year})\\n`;\n    report += `- **Court:** ${cite.court || 'Not specified'}\\n`;\n    report += `- **Context:** ${cite.context}\\n`;\n    report += `- **Page:** ${cite.pageNumber}\\n\\n`;\n  });\n}\n\n// Add statute section\nif (citationData.originalData.statuteCitations?.length > 0) {\n  report += `## Statutory Citations\\n\\n`;\n  citationData.originalData.statuteCitations.forEach(cite => {\n    report += `- **${cite.title} ${cite.code} § ${cite.section}**${cite.subsection ? ` (${cite.subsection})` : ''}\\n`;\n    report += `  - Context: ${cite.context}\\n`;\n    report += `  - Page: ${cite.pageNumber}\\n\\n`;\n  });\n}\n\n// Add academic section with fetched data\nif (citationData.originalData.academicCitations?.length > 0) {\n  report += `## Academic Citations\\n\\n`;\n  citationData.originalData.academicCitations.forEach(cite => {\n    report += `### ${cite.title}\\n`;\n    report += `- **Authors:** ${cite.authors}\\n`;\n    report += `- **Journal:** ${cite.journal}, Vol. ${cite.volume}, p. ${cite.page} (${cite.year})\\n`;\n    \n    // Add fetched paper data if available\n    const fetchedPaper = academicPapers.find(p => p.doi === cite.doi);\n    if (fetchedPaper) {\n      report += `- **Citations:** ${fetchedPaper.totalCitations || 0}\\n`;\n      report += `- **Abstract Available:** Yes\\n`;\n      if (fetchedPaper.pdfURL) {\n        report += `- **Full Text:** [Available](${fetchedPaper.pdfURL})\\n`;\n      }\n    }\n    \n    report += `- **Context:** ${cite.context}\\n`;\n    report += `- **Page:** ${cite.pageNumber}\\n\\n`;\n  });\n}\n\n// Add citation patterns\nreport += `## Citation Analysis\\n\\n`;\nreport += `### Primary Authorities\\n`;\ncitationData.patterns.primaryAuthorities.forEach(auth => {\n  report += `- ${auth}\\n`;\n});\nreport += `\\n### Secondary Authorities\\n`;\ncitationData.patterns.secondaryAuthorities.forEach(auth => {\n  report += `- ${auth}\\n`;\n});\n\nreturn [{\n  json: {\n    report,\n    citationData,\n    academicPapers,\n    exportFormat: 'markdown',\n    generatedAt: new Date().toISOString()\n  }\n}];"
      },
      "typeVersion": 1
    },
    {
      "id": "save-report",
      "name": "Save Citation Report",
      "type": "n8n-nodes-base.writeBinaryFile",
      "notes": "Export report",
      "position": [
        1650,
        300
      ],
      "parameters": {
        "fileName": "citation_report_{{ $now.format('yyyy-MM-dd_HH-mm') }}.md",
        "fileContent": "={{ $json.report }}"
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "Manual Trigger": {
      "main": [
        [
          {
            "node": "Google Drive - Get Legal Document",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "has-dois": {
      "main": [
        [
          {
            "node": "pdfvector-fetch",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "generate-report",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "generate-report": {
      "main": [
        [
          {
            "node": "save-report",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "pdfvector-fetch": {
      "main": [
        [
          {
            "node": "generate-report",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "analyze-citations": {
      "main": [
        [
          {
            "node": "has-dois",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "pdfvector-extract": {
      "main": [
        [
          {
            "node": "analyze-citations",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Drive - Get Legal Document": {
      "main": [
        [
          {
            "node": "pdfvector-extract",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}