Core AI Research & Technologies

Core AI research

AI research that understands content context and specialized knowledge

Research direction

We research AI that analyzes content, connects it to knowledge, and supports work. Our culture research is underway, with joint research planned to extend the foundation into healthcare.

Expanding our content AI research capabilities

National R&D projects and large-scale AI datasets have helped us validate capabilities and extend our research into new fields.

  1. 2017–2021

    Language & Localization AI

    Research into user-specific machine translation, source-text correction, and translation document management built the foundation of TWIGFARM’s language AI.

  2. 2022–2024

    Multimodal Media AI

    Scope widened to multimodal machine translation that reads video, audio, text, and cultural context together, alongside broadcast subtitle production, editing, and content analysis.

  3. 2020–2025

    Data-Centric AI

    Work on AI Hub datasets accumulated the ability to design, refine, and verify text, speech, image, video, and specialized-domain data.

  4. 2025–present

    Content Intelligence

    Semantic search, multimodal metadata generation, media sales kits, and AI-driven content asset management are being applied in LETR WORKS.

  5. Next research

    Domain-Specific LLM

    Starting with culture and healthcare: LLMs that understand expert knowledge and the context of a working environment, and that support decisions with traceable evidence.

Core research areas

Multimodal Content Intelligence

We analyze video, audio, subtitles, scripts, and images to structure people, actions, dialogue, and mood. The results support semantic search, summarization, scene recommendations, subtitling, dubbing, and content reuse.

  • Video–audio–text alignment
  • Scene and event recognition
  • Speaker, person, and object relations
  • Multimodal embeddings
  • Natural-language scene search
  • Video summarization
  • Inferred metadata generation

Content & Language AI

We research language AI that accounts for genre, character relationships, tone, and cultural context. Video scenes, speech, facial expressions, and existing translation assets help preserve meaning and emotion.

  • Custom machine translation
  • Source-error detection and correction
  • Context-aware subtitle generation
  • Translation memory and termbase
  • Cultural nuance preservation
  • Automated translation quality estimation
  • Human-in-the-loop post-editing

Data-Centric AI & Evaluation

We design data for model training and evaluation. Automated refinement, expert review, quantitative evaluation, and model-based checks help establish data quality.

  • Domain data design
  • Automated cleaning and deduplication
  • Inference-based labeling
  • Human-in-the-loop quality control
  • Model-based data validation
  • Data drift detection
  • Benchmark and evaluation sets

Knowledge-Grounded LLM & Agent

We structure documents, databases, and business rules with ontologies and retrieval so LLMs can answer with checkable evidence. This research extends to domain agents that connect retrieval, analysis, verification, reporting, and external tools.

  • RAG with source citation
  • Hybrid retrieval
  • Ontology and knowledge graphs
  • Terminology and entity relations
  • Multi-step reasoning
  • Tool-using agents
  • Hallucination detection and answer verification
  • Organization-specific AI

Human-AI Collaboration

We research collaboration systems that combine AI processing with expert judgement. Corrections and approvals inform customer terminology, evaluation criteria, and workflows to improve quality and productivity.

  • AI draft with expert review
  • Review prioritization
  • Revision history and evidence
  • Customer-specific evaluation rules
  • Model, prompt, and data versioning
  • Quality feedback loop

Research built on validated results

Capabilities developed through R&D and data projects support current services and further research.

Validated resultCapability developedResearch direction
Machine translation and source-correction R&DLanguage understanding, custom translationCulture-aware LLM
Multimodal machine translation R&DVideo, audio, and text fusionCultural reception model
Broadcast subtitle R&DMedia processing and workflowMultimodal content intelligence
K-Stock datasetCultural image and text dataCulture-specific multimodal models
Law, finance, and defense datasetsSpecialized-domain data modelingDomain-specific LLM
AI Hub dataset constructionLarge-scale data quality managementTraining and evaluation data for culture and healthcare
LETR WORKS commercializationTurning research into productIndustry-specific AI platforms

Research in culture and healthcare

Both fields share multimodal understanding, domain knowledge, reliability evaluation, and expert review. Culture research examines content interpretation and reception; planned healthcare research focuses on professional decision support.

Research underway

Culture-Aware LLM & Cultural Reception Model

We study how countries, languages, generations, and cultures affect the interpretation and reception of the same content. K-Stock data carrying Korean cultural, everyday, and geographic context and metadata describing background and intent provide a research foundation.

  • Cultural context representation
  • Multimodal cultural understanding
  • Audience reception simulation
  • Culture-aware localization strategy
  • Cultural bias detection and review
Planned joint research

Multimodal Healthcare LLM & Care Intelligence

We plan joint research on healthcare LLMs with hospitals, universities, and specialist institutions. TWIGFARM would contribute data pipelines, RAG, evaluation, and operations, while partners would define clinical problems and provide medical data and expert validation.

  • Medical knowledge grounding
  • Multimodal health understanding
  • Risk assessment and care support
  • Clinical documentation intelligence
  • Hallucination control and safety
  • De-identification and institution-specific models

The healthcare work is a planned joint research direction, not a commercially released product. It targets decision support that provides evidence and information to clinicians and care professionals, without replacing diagnosis or clinical judgement.

R&D and commercial services

Research reaches services through data development and validation. Feedback from real use guides further improvements.

  1. 01. Research

    New models, data structures, and evaluation methods.

  2. 02. Data

    Source data from the field, designed and refined into a structure that can be trained and evaluated on.

  3. 03. Validation

    Performance and stability verified through automated evaluation, expert review, government projects, and joint research.

  4. 04. Deployment

    Validated technology applied in LETR WORKS or in a customer-specific AI system.

  5. 05. Feedback

    Corrections and evaluation results from live use fed back into customer-specific data, rules, and models.

Research validated in practice

Results from data projects and applications in commercial services.

From language AI to media intelligence

Content AI technology and global strategy

How translation and localization technology grew into multimodal content asset management and a global monetization platform.

  • Content AI
  • Multimodal AI
  • Content Intelligence

Research and operations infrastructure

Cloud-based AI infrastructure processes large media and specialized datasets. Modular collection, preprocessing, inference, quality checks, and deployment help bring research into industry use.

Distributed training and inference

GPU-based training and inference use distributed processing designed to scale horizontally with data volume.

Reproducibility and MLOps

We manage model and data versions together and track results through performance monitoring and data drift detection.

Data security and operational reliability

We apply access controls, audit logs, and isolated customer workspaces, alongside incident response and backup/recovery procedures. Specific availability levels are agreed in the service contract.

Looking for institutions to research with

We seek joint research with institutions and companies that bring expertise in culture, content, medicine, and care. Together, we can define AI datasets, evaluation metrics, and validation procedures.