Knowledge Layer of Intelligence Engineering

One Engine. Every Context.

Knowledge Stack is a Knowledge-Based System that stores, retrieves, and governs knowledge for any domain. Each application brings its own brain. Knowledge Stack is the shared knowledge.

See the Architecture See Applications

For developers: API contract, reference agents, quickstart Coming soon

Sub-second*
Search latency
Scales to billions*
Documents at scale
Multilingual
TH + EN + more

* Performance depends on architecture, data volume, and infrastructure configuration.

Foundation

Why a Knowledge-Based System

Capturing, storing, retrieving, reasoning over, and governing knowledge is a discipline with over 40 years of foundations in AI research. A Knowledge-Based System (KBS) has a classical architecture: a knowledge base, an inference engine, and an interface. Knowledge Stack is a modern KBS — that same proven architecture built on modern components: search engines, vector databases, analytics engines, and LLM-based agents. The knowledge base and tools are universal and shared. The reasoning and interface are per-application. One engine. Many contexts.

The alternatives

Three options most enterprises consider — and why each falls short.

Option 1

Build it yourself

12–18 months. Three teams. Most never finish.

Assemble retrieval, governance, audit, sovereignty, and PDPA subject rights from scratch. Real engineering across data, ML, and security. By the time it works, the LLM landscape has shifted twice.

Option 2

Buy a SaaS RAG platform

Polished product. Sovereignty fails day 1.

Mature retrieval and chat UX. But your data leaves your boundary, your tenant lives on a shared cluster, and your compliance review surfaces the show-stopper before procurement finishes.

Option 3

Use a hosted assistant

Easy adoption. Locked to one vendor's ecosystem.

Works only as well as your knowledge fits inside that vendor's stack. Federating to your warehouse, enforcing your classification scheme, or surviving a vendor switch each become a multi-quarter project.

The fourth option

Knowledge Stack — sovereign by default, federated to your existing data estate.

Architecture

Four Layers. One Clear Boundary.

Knowledge Stack is one Knowledge-Based System, applied to many domains.

Your Application
bring, build, or fork
Customer-owned
L4

Application Layer

UIs, dashboards, chat, embeds
L3

Agent Layer

LLM reasoning, answer composition (pluggable)
ownership boundary
Knowledge Stack
built and tailored by Infozense
Provided by Infozense
L2

Tool Layer

search, retrieve, query; tenancy, governance
L1

Data Layer

Search & vector engine, analytics engine, shared catalog

Infozense ships L1 and L2 — the data layer and the tool layer. L3 and L4 are your agent and application layer: bring your own, or start from our open reference implementations.

Outcomes

What Knowledge Stack delivers

Weeks, not years
Time to first AI use case

Reference deployments stand up a working application in weeks on top of Knowledge Stack rather than the 12–18 months a custom build typically takes.

Full PDPA surface
Compliance defensibility

Articles 30, 33, 34, 35, 36 each have dedicated endpoints. Hand auditors a working API, not a slideshow.

Zero data egress
Sovereignty by default

Confidential and internal classifications force local LLM routing automatically. No tenant config can override.

Plug in yours. Or ours.
No vendor lock-in

Bring your existing search, vector store, or warehouse — or use the Apache 2.0 components we ship. Every layer is replaceable. No proprietary glue.

Capabilities

Capabilities Across Four Layers

Every capability maps to a layer in the architecture. The Knowledge Base (L1+L2) is shared; reasoning and interface (L3+L4) are per-application.

Hybrid Search

L1/L2

Full-text keyword search and semantic vector search in a single query. Find documents by exact terms or by meaning — whichever gets the best result.

Document Intelligence

L1/L2

Reads PDFs, Office documents, and scanned images (including OCR for scans). Auto-classifies sensitivity and document type, extracts text and tables, detects PII (Thai national ID, phone, email, credit card). Schema-driven extraction for structured forms — invoices, PO documents, and similar. Field-by-field extraction is configured per document template.

RAG (Retrieval-Augmented Generation)

L3 In your app

The agent layer retrieves documents from the Knowledge Base and composes grounded answers with citations. Each domain application configures its own RAG prompts and LLM.

Usage Insight

L1/L2

Track usage patterns, identify knowledge gaps, and monitor search quality metrics. Understand what your teams are looking for — and what they cannot find.

Knowledge Governance

L1/L2

Per-tenant access isolation, classification-driven content controls (public / internal / confidential / restricted), retention policies with auto-deletion, PII redaction, right-to-erasure, and complete audit trails. Built for Thai PDPA, BoT, and banking secrecy requirements.

Content Lifecycle

L2 Roadmap

Approval before publication, retention reminders, automated re-classification, archive and retire. Lifecycle automation specific to knowledge assets — built on the audit + classification foundation already in place.

Multilingual

L1

Native Thai and English search and retrieval — with support for additional languages. Ask in Thai, find English documents — and vice versa. Built for Southeast Asian enterprise use.

Quality Monitoring

L2

Measure retrieval precision, content freshness, and knowledge coverage. Detect gaps and stale documents automatically — so quality improves over time.

Scalable Vector Search

L1

Start with built-in vector search for millions of documents. Scale to a dedicated vector database for billions — without changing your application.

Knowledge Graph

L1 Roadmap

Extract entities and relationships to build a knowledge graph — then reason across connections. Answer multi-hop questions like "How do these regulations interact?" instead of just "What does this document say?"

Auditable

L1/L2

Every retrieval, query, and LLM call is logged with actor, tenant, timestamp, prompt hash, and routing decision. Compliance-ready by default. Show auditors what happened, not what the policy says should happen.

Sovereign by Design

L1/L2.5

Per-tenant routing keeps confidential data on local infrastructure. Classification-driven LLM routing enforces "TH-only" and "internal-only" data residency. PII redacted before any external API call. Built for Thai regulatory requirements.

Domain Contexts

One Engine, Many Contexts

One Knowledge Stack, many domain applications. Each card below is a different context — same engines, same tool layer, different corpus.

Supply chain

Live

Which suppliers are at risk this quarter?

POs, shipments, supplier catalogs, contracts

See supply chain application →

IoT

Live

What does this sensor reading mean for uptime?

Sensor manuals, device specs, telemetry

See IoT application →

Geospatial

Live

What is happening on this parcel of land?

Cadastral records, GIS layers, satellite imagery

See geospatial application →

Skills / HR

Live

Who on staff has the skills for this project?

Job descriptions, resumes, training materials

See skills application →

Market intelligence

Reference

Why did SET50 move this week?

Filings, factor tables, news, Zignal weeklies

Regulatory

Reference

How do these BoT circulars interact?

Laws, circulars, rulings, public consultations

Education

Reference

Where in these textbooks is this concept covered?

Textbooks, lesson plans, study guides, exam materials

Legal

Roadmap

Have we signed something like this before?

Contracts, agreements, case files, legal opinions

Healthcare

Roadmap

What does the guideline say for this patient case?

Drug databases, clinical guidelines

What stays the same

Engines, tool layer, schemas, tenancy, governance.

What changes per context

Registered assets, reference agent prompts, UI style.

The Analogy

Know vs Predict vs Decide

Knowledge Stack — Know

What is / was true. Descriptive.

Analytics Stack — Predict

What patterns exist and what will happen. Predictive.

Decision Stack — Decide

What we should do. Prescriptive.

Three stacks. Three questions. Match the stack to the question you need answered.

Run It Your Way

Two Decisions. You Make Both.

Knowledge Stack runs anywhere and uses any LLM. Pick one option from each column.

Decision 1

Where does it run?

Customer Operated

Available today

Your cloud or on-premise. Full control over data and security.

  • AWS, GCP, Azure, IBM Cloud, INET, or on-prem
  • We train your team to operate and scale
  • Ongoing support retainer available

Best for: regulated industries and data sovereignty requirements.

INFOZENSE Managed

2026

We host, operate, and optimize it for you.

  • Monthly subscription — predictable costs
  • Auto-scaling, updates, and monitoring
  • Go live in days, not months

Best for: teams that want results without managing infrastructure.

Decision 2

Which LLM does it use?

Local LLM

Sovereign

Inference runs on your hardware. Data never leaves your boundary.

  • Local LLM via OpenAI-compatible API
  • Customizable model, prompts, and routing
  • When data is classified Restricted or Confidential

Best for: regulated industries, PDPA / BoT scope, data residency.

Public LLM

Cloud API

Inference runs on a vendor API — your guardrail inspects every request, redacts PII, and enforces data classification rules before anything leaves your boundary.

  • Frontier LLM via OpenAI-compatible API
  • Your API key, your contract, your bill
  • Routed automatically based on data classification

Best for: offloading specific tasks that exceed local-model capability — frontier-model power, used selectively.

Implementation

Infozense Forward-Deployed Engineers

Service line

Knowledge Stack is software, but a successful deployment is people. Infozense Forward-Deployed Engineers embed in your team for the first 8–16 weeks: discovery, ingestion design, policy authoring, integration with your existing IdP and observability stack, and training your operators. Hand-off includes a phased rollout plan and 90 days of post-launch support.

  • Engineers, not consultants. They deploy and operate KS.
  • Knowledge transfer-first — your team owns the system at the end.
  • Optional retainer for ongoing optimization as your corpus and policies evolve.
Get Started

Ready to Deploy Your Knowledge Stack?

Tell us about your knowledge challenge — scattered documents, poor search, no governance. We'll assess the fit and show you how Knowledge Stack provides the shared memory your applications need.

Book a Consultation

We welcome international engagements — serving clients across Southeast Asia and beyond.