Sentients.Tech Podcast

2-18 DX-AI Advisor: Ontology-driven Secured AI Advisor


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Main Topic: The podcast explores the challenge of extracting reliable insights from large volumes of documents (PDFs, Word docs, PowerPoints, etc.) and introduces an AI-driven solution, specifically focusing on an approach using ontologies for enhanced reliability, context-awareness, and precision, particularly exemplified by a prototype called the DX AI Advisor working with Gemma 3 models.

Problem Addressed:

  • Information overload ("drowning in documents").

  • Difficulty in extracting specific, key insights accurately and reliably.

  • Standard search methods (like basic vector search) might lack deep contextual understanding and relationship awareness.

    Proposed Solution & Key Concepts:

    1. AI Advisor for Documents: An AI system designed to act as a personal assistant or expert, sifting through documents to provide specific, needed information (e.g., competitor analysis, market trends, industry shifts).

    2. Ontology-Driven Approach: This is the core innovation discussed.

      • What it is: An ontology is described as a structured "map of knowledge" or "knowledge graph."

      • How it's built: The AI (like the DX AI Advisor) parses documents, uses a Large Language Model (LLM like Gemma 3) to identify key entities (concepts, companies, people, etc.) and the relationships between them. This forms the ontology, often stored in a standard format (like TTL).

      • Why it's better: Unlike just looking for keyword or semantic similarity (like basic vector search), the ontology understands the context and how things are connected.

      • DX AI Advisor Prototype:

        • Takes various document types as input.

        • Parses text and uses an LLM (Gemma 3) to build the ontology and create embeddings.

        • Stores embeddings in a vector database (Faiss) for semantic search.

        • An "AI Advisor Agent" orchestrates the process, using boththe ontology and the vector database to answer questions and generate reports.

        • Comparison of Search Methods:

          • Vector Search: Finds semantically similar text chunks (good baseline).

          • Ontology Search: Allows precise queries based on relationships (e.g., "competitors of X," "products related to trend Y"), filtering by entity types and connections.

          • Reliability Advantages of Ontologies:

            • Contextual Awareness: Understands meaning within context.

            • Reasoning: Can infer implicit connections.

            • Transparency: Allows tracing answers back to evidence via the structured ontology.

            • Consistency: Provides a consistent knowledge representation.

            • Scalability: Can grow as more documents are added.

              Specific Use Cases & Features:

              • Secure Environments: The DX AI Advisor is designed to work with smaller, efficient models like Gemma 3 and can run locally (using tools like Ollama), keeping sensitive data secure.

              • Precise Q&A: Answers highly specific questions about relationships within the documents.

              • Trend Analysis Reports: Generates structured, evidence-based reports automatically, flowing logically based on the ontology's relationships, not just listing points.

                Conclusion: The ontology-driven approach offers a significant step forward in creating reliable, context-aware AI tools for document analysis, especially valuable for researchers, analysts, and R&D professionals, particularly in secure or resource-constrained environments. It moves beyond simple information retrieval to deeper understanding and reasoning. The podcast concludes by asking listeners to consider other fields where this ontology-based approach could be beneficial.

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                Sentients.Tech PodcastBy Kenny Jung