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Knowledge Bases FAQ

Neural Factory supports:
  • PDF (.pdf) — Text-based and scanned (with OCR)
  • Word (.docx, .doc)
  • Excel (.xlsx, .xls)
  • PowerPoint (.pptx)
  • Text (.txt)
  • CSV (.csv)
Indexing time depends on file size, type, and queue depth:
  • Small text files: seconds
  • Standard PDFs (1–10 MB): 10–60 seconds
  • Large documents (10–50 MB): 1–5 minutes
  • Bulk uploads (100+ files): 10–30 minutes
Monitor progress on the knowledge base detail page.
Sync frequency depends on the datasource configuration:
  • Manual — Only when you click “Sync Now”
  • Automatic — Periodically checks for changes (frequency depends on configuration)
You can trigger a manual sync at any time from the datasource settings.
No. Password-protected or encrypted PDFs cannot be processed. Remove the password protection before uploading.
When you delete a document:
  1. The file is removed from storage
  2. All indexed chunks are removed from the vector store
  3. The agent can no longer find or cite content from that document
Deletion is permanent and cannot be undone.
File size limits depend on your deployment:
  • Enterprise: Configured per deployment
  • SaaS: Varies by subscription plan
If you encounter a file size error, try splitting large documents into smaller files.
Yes. A knowledge base can be connected to multiple agents. This is common when different agents need access to the same underlying documents but with different system prompts or tools.
Neural Factory uses hybrid retrieval:
  1. Semantic search finds content that is conceptually similar to the query
  2. Keyword search finds content containing the exact terms
  3. Reranking re-scores results using a dedicated reranker model for optimal relevance
This combination delivers better results than either approach alone.