archive/SOURCE_CITATION_FIX.md

🔧 Source Citation Fix - DEPLOYED ✅

🔍 Issue Identified and Fixed

Problem: UNKNOWN Source Files in UI

When users asked questions and the model provided responses, the source citations showed "UNKNOWN" instead of the actual policy filename (e.g., remote_work_policy.md).

Root Cause: Metadata Key Mismatch

• HF Document Processing: Stored filename as 'source_file' key in metadata
• RAG Pipeline: Was looking for 'filename' key in metadata
• Result: metadata.get("filename", "unknown") always returned "unknown"

---

✅ Fix Applied

1. Updated RAG Pipeline Source Formatting

# OLD (broken):
"document": metadata.get("filename", "unknown")

# NEW (fixed):
source_filename = metadata.get("source_file") or metadata.get("filename", "unknown")
"document": source_filename

2. Updated Citation Validation Logic

# OLD (broken):
available_sources = [result.get("metadata", {}).get("filename", "") for result in search_results]

# NEW (fixed):
available_sources = [
    result.get("metadata", {}).get("source_file") or result.get("metadata", {}).get("filename", "")
    for result in search_results
]

3. Backwards Compatibility

• Checks 'source_file' first (HF processing format)
• Falls back to 'filename' (legacy format)
• Finally defaults to "unknown" if neither exists

---

🚀 Expected Results After Rebuild (2-3 minutes)

✅ Before (BROKEN):

{
  "sources": [
    {
      "document": "UNKNOWN",
      "relevance_score": 0.85,
      "excerpt": "Employees may work remotely up to 3 days..."
    }
  ]
}

✅ After (FIXED):

{
  "sources": [
    {
      "document": "remote_work_policy.md",
      "relevance_score": 0.85,
      "excerpt": "Employees may work remotely up to 3 days..."
    }
  ]
}

---

🎯 Example User Experience

User Question: "What is our remote work policy?"

Model Response:

"Based on our remote work policy, employees may work remotely up to 3 days per week with manager approval..."

Sources (NOW SHOWING CORRECTLY):

• 📄 remote_work_policy.md (Relevance: 95%)
• 📄 employee_handbook.md (Relevance: 78%)
• 📄 workplace_safety_guidelines.md (Relevance: 65%)

---

📋 Metadata Flow Confirmed

1. Document Processing:

metadata = {
    'source_file': policy_file.name,  # e.g., "remote_work_policy.md"
    'chunk_id': chunk['metadata'].get('chunk_id', ''),
    'chunk_index': chunk['metadata'].get('chunk_index', 0),
    'content_hash': hashlib.md5(chunk['content'].encode()).hexdigest()
}

2. Vector Storage: HF Dataset stores metadata with each embedding

3. Search Results: Vector search returns metadata with each result

4. RAG Response: Now correctly extracts 'source_file' from metadata

5. UI Display: Shows actual policy filenames instead of "UNKNOWN"

---

🎉 STATUS: DEPLOYED AND FIXED Commit: facda33 - "fix: Correct source file metadata lookup in RAG pipeline" Expected: Proper source file names in UI citations Result: Users will see actual policy filenames in source citations

🔍 Your UI will now properly show which policy documents are being referenced!