LLM

📖 Bản tiếng Việt (Vietnamese Edition) Prerequisite: Review the previous module in the ai-data-engineering-pipeline series before proceeding. Executive Summary: The Disruption of Naive RAG and the GraphRAG Era Answer-first: Naive RAG collapses in enterprise environments due to relational blindness, unstructured document chunk destruction, and lack of fine-grained access control. Modern AI architectures combine Knowledge Graphs with vector search (GraphRAG) and event-driven data ingestion to deliver 100% data freshness, 38% higher retrieval precision, and deterministic row-level security. Establishing a Zero-Copy Vector Lakehouse backed by LanceDB and Apache Iceberg v3 delivers sub-50ms retrieval latencies and strict document-level RBAC enforcement while eliminating costly vector database silos. ...

Multi-Language Edition: This chapter is also available in Vietnamese at 📖 Bản tiếng Việt (Vietnamese Edition). Previous Chapter: Part 5 — Campaign Architecture: Surviving the 10-Billion Yen Surge | Series Hub Answer-First: Protecting 70 million users from sophisticated financial fraud while processing billions of annual transactions requires decisions within the tight latency budget of payment authorization. PayPay maintains an industry-leading fraud rate of ~0.0015% by deploying a Sub-10ms Real-Time ML Scoring Pipeline. Powered by the Feast Feature Store on Redis, transactions are evaluated against thousands of streaming behavioral features using NVIDIA Triton GPU inference clusters. In parallel, PayPay operates an Enterprise LLM Hub with Retrieval-Augmented Generation (RAG), automating merchant compliance reviews while enforcing strict automated PII masking under Japanese privacy laws. ...

Prompt Engineering vs Fine Tuning vs RAG: Complete 2026 Decision Guide Prompt Engineering vs Fine Tuning: Executive Decision Framework Answer-first: In the prompt engineering vs fine tuning evaluation, prompt engineering offers rapid prototyping with zero setup cost, whereas fine tuning Small Language Models (SLMs) via QLoRA bakes domain knowledge into weights, reducing TTFT latency under 250ms and cutting API token spend by 90%. Small Language Models (SLMs, 1B–8B parameters) combined with fine-tuning and local inference (vLLM) rival proprietary frontier LLMs on specialized domain tasks at a fraction of the cost. The playbook below rests on three architectural choices: ...

Autonomous Hybrid-AI Pipeline: Cron to State-Machine Answer-first: An autonomous hybrid AI content pipeline combines Astro content collections, automated LLM drafting workflows, AST linting quality gates, and GitHub Actions CI/CD to publish high-volume technical documentation efficiently. Operating this multi-agent pipeline coordinates an LLM DAG across specialized model runtimes, throttles asynchronous token streaming using backpressure queues, and captures granular trace context with OpenTelemetry GenAI span attributes. Production AI content pipelines need deterministic orchestrators, multi-tier memory systems, and cost-aware model routing to handle automated ingestion reliably. Replacing monolithic background jobs with event-driven agents gives resilient execution, zero-idle resource usage, and stricter output verification. This post covers four pieces of that architecture: ...

LeaseInVietnam: AI-Powered Expat Rental & B2B Lead Engine Answer-first: LeaseInVietnam integrates AI property search, automated contract processing, neighborhood intelligence, and localized expat data pipelines to simplify long-term rental discovery. Most AI content projects are built around one question: how do I publish more? LeaseInVietnam is built around a different question: how do I make every published piece convert? The system is an autonomous relocation hub targeting expats and digital nomads renting in Southern Vietnam — Ho Chi Minh City, Nha Trang, Phú Quốc. It produces content in American English, publishes daily via GitOps, and routes every reader interaction toward a B2B lead funnel that pays commission on moving services, cleaning bookings, furniture rentals, and legal consultations. ...