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Research Scientist - Ontology & Knowledge Graph

LG AI Research
๐Ÿ‡ฐ๐Ÿ‡ท South Korea
On-site
2 days ago
  • AI
  • RAG
  • PyTorch
  • Natural Language Processing
  • MLOps
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ํŒ€ ์†Œ๊ฐœ

Data Intelligence Lab์€ ์ตœ์‹  Deep Learning ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ์—ฐ๊ตฌ/๊ฐœ๋ฐœํ•˜์—ฌ ๊ณ ๋„ํ™” ๋œ ๋ฐ์ดํ„ฐ ๋ถ„์„ ๋ฐ ์˜ˆ์ธก๊ณผ ๋ณต์žกํ•œ ๋ฐ์ดํ„ฐ์˜ ์ตœ์ ํ™”๋ฅผ ์ˆ˜ํ–‰ํ•ฉ๋‹ˆ๋‹ค.
์ด๋ฅผ ํ†ตํ•ด ์‚ฐ์—…์— ์ ์šฉํ•  ์ˆ˜ ์žˆ๋Š” ์‹ค์šฉ์  ๊ธฐ์ˆ ์„ ํ†ตํ•ด ๊ทธ๋ฃน์˜ ๋‹ค์–‘ํ•œ ์‚ฌ์—…์  ๋‚œ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ณ , ์—…๋ฌด ํšจ์œจํ™” ๋ฐ ์ƒ์‚ฐ์„ฑ ํ–ฅ์ƒ, ์ œํ’ˆ ๊ธฐ๋Šฅ ๊ฐœ์„ ์„ ์ถ”์ง„ํ•ฉ๋‹ˆ๋‹ค.

๊ทธ ์ค‘ Ontology ๊ตฌ์ถ• ๋ฐ ํ™œ์šฉ์„ ์œ„ํ•œ AI ๋ชจ๋ธ์„ ์—ฐ๊ตฌํ•˜๋Š” Ontology Intelligence Tech Cell์—์„œ ์ €ํฌ์™€ ํ•จ๊ป˜ ์—ฐ๊ตฌํ•  Researcher๋ฅผ ์ฐพ๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.

๊ธฐ์—…์˜ ์ง€์‹์€ ๋ฌธ์„œ, ํ…Œ์ด๋ธ”, ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค ๋“ฑ ๋‹ค์–‘ํ•œ ํ˜•ํƒœ๋กœ ๋ถ„์‚ฐ๋˜์–ด ์žˆ์œผ๋ฉฐ, LLM๊ณผ RAG๋งŒ์œผ๋กœ๋Š” ์ง€์‹ ๊ฐ„ ์˜๋ฏธ์  ๊ด€๊ณ„์™€ ๋…ผ๋ฆฌ์  ์ผ๊ด€์„ฑ์„ ๋ณด์žฅํ•˜๊ธฐ ์–ด๋ ต์Šต๋‹ˆ๋‹ค.
Ontology Intelligence Tech Cell์—์„œ๋Š” Ontology์™€ Knowledge Graph๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ๊ธฐ์—… ๋ฐ์ดํ„ฐ๋ฅผ ๊ตฌ์กฐํ™”ํ•˜๊ณ , ๋…ผ๋ฆฌ์  ๊ฒ€์ฆ๊ณผ GraphRAG๋ฅผ ๊ฒฐํ•ฉํ•˜์—ฌ ์‹ ๋ขฐํ•  ์ˆ˜ ์žˆ๋Š” AI ์„œ๋น„์Šค๋ฅผ ๋งŒ๋“œ๋Š” ๊ธฐ์ˆ ์„ ์—ฐ๊ตฌยท๊ฐœ๋ฐœํ•ฉ๋‹ˆ๋‹ค.ย  Ontology, Knowledge Graph, LLM์„ ๊ฒฐํ•ฉํ•œ AI ์‹œ์Šคํ…œ์„ ์—ฐ๊ตฌยท๊ฐœ์„ ํ•˜๊ณ , ์‹ค์ œ ์‚ฌ์šฉ ํ™˜๊ฒฝ์—์„œ ํ•„์š”ํ•œ ์—ฐ๊ตฌ ๋ฌธ์ œ๋ฅผ ์ •์˜ํ•˜๊ณ  ๊ฒ€์ฆํ•˜๋Š” Applied Researcher๋ฅผ ๋ชจ์ง‘ํ•ฉ๋‹ˆ๋‹ค.ย 

์ˆ˜ํ–‰ ์—…๋ฌด

  • LLM ๊ธฐ๋ฐ˜ Ontology ๋ฐ Knowledge Graph ์ƒ์„ฑยท๊ตฌ์กฐํ™” ๊ธฐ์ˆ  ์—ฐ๊ตฌ
  • Ontology schema/constraint ์„ค๊ณ„ ๋ฐ consistency validation/reasoning ๊ธฐ์ˆ  ๊ฐœ๋ฐœ
  • GraphRAG, multi-hop retrieval ๋ฐ Knowledge Graph ๊ธฐ๋ฐ˜ QA ์—ฐ๊ตฌ
  • EXAONE ๋“ฑ LLM์„ ํ™œ์šฉํ•œ Knowledge Extraction ๋ฐ domain adaptation ์—ฐ๊ตฌ
  • ์—ฐ๊ตฌ ๊ฒฐ๊ณผ๋ฅผ ์‹ค์ œ ์„œ๋น„์Šค/API๋กœ ํ™•์žฅํ•˜๊ธฐ ์œ„ํ•œ ์‹œ์Šคํ…œ ๊ฐœ๋ฐœ ๋ฐ ์ œํ’ˆํ™” ํ˜‘์—…


์ง€์›์ž๊ฒฉ

  • Ontology, Knowledge Graph, Knowledge Representation์˜ ๊ธฐ๋ณธ ๊ฐœ๋…๊ณผ ontology schema ์„ค๊ณ„์— ๋Œ€ํ•œ ์ดํ•ด
  • RDF/OWL ๋ฐ ontology reasoningยทvalidation์— ๋Œ€ํ•œ ๊ธฐ๋ณธ์ ์ธ ์ดํ•ด
  • LLM, Transformer ๋“ฑ ์–ธ์–ด๋ชจ๋ธ์˜ ๊ตฌ์กฐ์™€ ํ•™์Šตยท์ถ”๋ก  ๋ฐฉ์‹์— ๋Œ€ํ•œ ์ดํ•ด
  • PyTorch ๊ธฐ๋ฐ˜ ์—ฐ๊ตฌ ์ฝ”๋“œ๋ฅผ ์ฝ๊ณ  ์‹คํ—˜์„ ์„ค๊ณ„ยท์ˆ˜์ •ยทํ™•์žฅยท๊ตฌํ˜„ํ•  ์ˆ˜ ์žˆ๋Š” ์—ญ๋Ÿ‰
  • RAG/GraphRAG ๋“ฑ knowledge retrieval ๊ธฐ์ˆ ์— ๋Œ€ํ•œ ์ดํ•ด
  • ๋…ผ๋ฌธยท์˜คํ”ˆ์†Œ์Šค ๊ตฌํ˜„์ฒด์™€ failure case๋ฅผ ๋ถ„์„ํ•ด ์—ฐ๊ตฌ ๊ฐ€์„ค ๋ฐ ๊ฐœ์„  ๋ฐฉํ–ฅ์œผ๋กœ ์—ฐ๊ฒฐํ•  ์ˆ˜ ์žˆ๋Š” ์—ญ๋Ÿ‰

ย 

์šฐ๋Œ€์‚ฌํ•ญ

  • Ontology, Knowledge Graph ๊ด€๋ จ ์—ฐ๊ตฌ ๋˜๋Š” ๊ตฌํ˜„ ๊ฒฝํ—˜
  • LLM ๊ธฐ๋ฐ˜ Knowledge Extraction, Ontology Generation ๋˜๋Š” KG Construction ์—ฐ๊ตฌ ๊ฒฝํ—˜
  • LLM์˜ hallucination ๋˜๋Š” knowledge grounding ๊ด€๋ จ ์—ฐ๊ตฌ ๊ฒฝํ—˜
  • NLP, LLM, Knowledge Representation ๋ถ„์•ผ ์—ฐ๊ตฌ ๋˜๋Š” PoC ๊ฒฝํ—˜
  • LLM fine-tuning, domain adaptation ๋˜๋Š” evaluation ๊ฒฝํ—˜
  • ๋ชจ๋ธ ์„œ๋น™ยทAPIํ™”ยทMLOps์— ๋Œ€ํ•œ ๊ธฐ๋ณธ์ ์ธ ์ดํ•ด


์ „๊ณต

  • ์ธ๊ณต์ง€๋Šฅ, ์ปดํ“จํ„ฐ๊ณตํ•™, ์ „์ž๊ณตํ•™, ์ „๊ธฐ๊ณตํ•™ ๋“ฑ


์ „ํ˜•์ ˆ์ฐจ

  • ์„œ๋ฅ˜์‹ฌ์‚ฌ โ†’ ์ฝ”๋”ฉํ…Œ์ŠคํŠธ(์˜จ๋ผ์ธ) & LG Way Fit Test(์ธ์„ฑ๊ฒ€์‚ฌ)โ†’ ๊ธฐ์ˆ  ์ธํ„ฐ๋ทฐ(๋น„๋Œ€๋ฉด) โ†’ ์ตœ์ข… Culture Fit Interview(๋Œ€๋ฉด)

ย  ย  ย  ย * ์ „ํ˜• ์ ˆ์ฐจ๋Š” ๋ณ€๊ฒฝ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์„œ๋ฅ˜ ํ•ฉ๊ฒฉ ์‹œ ์ „ํ˜• ์ ˆ์ฐจ์— ๋Œ€ํ•ด ๋ณ„๋„๋กœ ์•ˆ๋‚ด ํ•ด ๋“œ๋ฆฝ๋‹ˆ๋‹ค.



ํ˜„์žฌ LG AI์—ฐ๊ตฌ์›์€ ๋ณ‘์—ญ์ง€์ •์—…์ฒด๊ฐ€ ์•„๋‹˜์œผ๋กœ, ์ „๋ฌธ์—ฐ๊ตฌ์š”์› ์ฑ„์šฉ ๋ฐ ์ „์ง์ด ๋ถˆ๊ฐ€ํ•จ์„ ์•Œ๋ ค๋“œ๋ฆฝ๋‹ˆ๋‹ค.

์ง€์›์‹œ ๋ฌธ์ œ๊ฐ€ ์žˆ์„ ๊ฒฝ์šฐย careers@lgresearch.aiย ๋กœ ๋ฌธ์˜ ๋ถ€ํƒ๋“œ๋ฆฝ๋‹ˆ๋‹ค.

Research Scientist - Ontology & Knowledge Graph ยท LG AI Research

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