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LG AI Research

Builds AI models for research and industrial use

Research Scientist - Ontology & Knowledge Graph

Natural Language Processing & LLMsConfirmed live in the last 24 hours
Full-timeSeoul, South KoreaNo salary listedIn-person

About the Job

Requirements

  • Understand the basic concepts of ontology, knowledge graphs, and knowledge representation, as well as ontology schema design.
  • Have a basic understanding of RDF/OWL and ontology reasoning and validation.
  • Understand the structure and training and inference methods of language models such as large language models and Transformers.
  • Be able to read PyTorch-based research code and design, modify, extend, and implement experiments.
  • Understand knowledge retrieval technologies such as RAG and GraphRAG.
  • Be able to analyze papers, open-source implementations, and failure cases and translate findings into research hypotheses and improvement directions.

Responsibilities

  • Research technologies for generating and structuring ontologies and knowledge graphs based on large language models.
  • Design ontology schemas and constraints, and develop consistency validation and reasoning technologies.
  • Research GraphRAG, multi-hop retrieval, and knowledge-graph-based question answering.
  • Research knowledge extraction and domain adaptation using large language models such as EXAONE.
  • Collaborate on system development and productization to extend research results into real services and APIs.

Desired Qualifications

  • Research or implementation experience related to ontologies or knowledge graphs.
  • Research experience in large-language-model-based knowledge extraction, ontology generation, or knowledge graph construction.
  • Research experience related to hallucination or knowledge grounding in large language models.
  • Research or proof-of-concept experience in natural language processing, large language models, or knowledge representation.
  • Experience with large language model fine-tuning, domain adaptation, or evaluation.
  • Basic understanding of model serving, API development, and MLOps.

About the Company

LG AI Research

Builds AI models for research and industrial use

LG AI Research develops AI models and industry-focused systems for businesses and researchers as LG Group's central AI research organization. Its EXAONE family handles language and images, while specialized platforms address data analysis, materials discovery and drug research. The institute turns research into tools for company documents and operational decisions, working with LG affiliates and outside partners to apply models to specific business problems. It also distributes model weights to developers and supports commercial applications through industry collaborations and licensing. Established in 2020, LG AI Research is headquartered in Seoul, South Korea.

Company size
201-500
Company stage
Not listed
Total funding
Not listed
Headquarters
Seoul, South Korea
Founded
2020

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