11-12, August 2026 Seoul, South Korea View More Details & Registration Note: The schedule is subject to change.
The Sched app allows you to build your schedule but is not a substitute for your event registration. You must be registered for Open Source Summit Korea 2026 to participate in the sessions. If you have not registered but would like to join us, please go to the event registration page to purchase a registration.
This schedule is automatically displayed in Korea Standard Time (KST), UTC +9. To see the schedule in your preferred timezone, please select from the drop-down menu to the right.
Sign up or log in to add sessions to your schedule and sync them to your phone or calendar.
Agentic search lets you ask in Natural Language and have OpenSearch plan and execute retrieval. The Query Planner re-writes Natural Language to OpenSearch DSL using SOTA LLMs. This works amazingly well but not without important limitations:
1/ The biggest factor is added latency for remote inference. eCommerce Search demands sub-100ms response times. Even the best results when slow lead to search abandonment. 2/ We'll demo overcoming latency by hosting SLMs locally within OpenSearch nodes using vLLM/Ollama. This is faster & cheaper, but SLMs suffer quality decline in query re-writes. We'll explore fine-tuning with domain-specific data—proving fine-tuned SLMs beat SOTA LLMs. 3/ Relevance remains generic even with Agentic Search. We'll show how to improve it using user and business contexts with hybrid search and reranking.
This hands-on talk covers: 1/ Search Latency with Remote Inference 2/ Locally hosting SLMs using vLLM/Ollama 3/ Agentic search with SLM Local Inference 4/ Improving relevance with user and business contexts 5/ Fine-tuning SLMs for domain-specific query re-writing via Axolotl/LLaMA-Factory
Principal OpenSearch Specialist SA, Amazon Web Services
Cédric Pelvet is a Principal Specialist Solutions Architect at AWS, focusing on AI and near-realtime distributed systems for data like OpenSearch, Kafka and Flink.
Aswath Srinivasan is a Senior Search Engine Architect at Amazon Web Services currently based in Munich, Germany. With over 18 years of experience in various search technologies, Aswath currently focuses on OpenSearch. He is a search and open-source enthusiast and helps customers and... Read More →