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Jaesol Shin

Jaesol Shin

Towards observable, reliable, scalable AI

GitHub

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All Posts 26 Research 1 AI 17 Development 3 DB 5

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AI8 PostgreSQL8 Benchmark7 RAG6 LLM4 zsh4 Claude Code4 OpenAI4 GraphRAG4 LightRAG4 Multi-account3 Dotfiles3 Configuration3 Developer Workflow3 API3 Productivity2 GPT-52 DeepSeek2 GraphDB2 RCTE2 Neo4j2 Apache AGE2 Recursive CTE2 Markdown2 PDF2 Agent2 Self-Improvement2 POMDP2

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2026 26

#RAG

한국어

May 22, 2026 · AI

Memory as Adaptation

Why agent memory moved from RAG storage to the foundation of policy adaptation

#AI #Agent #Memory #RAG

May 21, 2026 · AI

Comparing Four LightRAG Variants — Same Root, Different Production Strategies

Source-level comparison of RAG-Anything, ApeRAG, and EdgeQuake as LightRAG derivatives

#LightRAG #RAG-Anything #ApeRAG #EdgeQuake

May 20, 2026 · AI

PDF to Markdown — Five Tools Compared

Five PDF-to-Markdown converters (markitdown, pdftotext, pymupdf, mineru, opendataloader-pdf) scored against a seven-criterion 100-point rubric

#PDF #Markdown #RAG #Ingestion

May 20, 2026 · AI

LightRAG Without Apache AGE — Graph Storage in Recursive CTE

Implementing LightRAG's BaseGraphStorage on plain PostgreSQL with RCTE — why a 1-hop-dominant retrieval pattern fits flat SQL

#LightRAG #PostgreSQL #RAG #GraphRAG

May 20, 2026 · DB

In-DB AI, Five Systems Compared — Why Most Are Misguided

Oracle 23ai, EDB AIDB, PostgresML, Timescale pgai, pg_aidb — five systems and the abstraction-boundary discussion

#PostgreSQL #AI #RAG #in-db-ai

May 20, 2026 · DB

Replacing Elasticsearch with PostgreSQL for Korean Search — An 8-Phase Study

textsearch_ko (MeCab) + pg_textsearch BM25 + pgvector HNSW + DB-side RRF matches Elasticsearch on Korean search quality and runs 2–5× faster on a single node. Eight phases of measurement, head-to-head against ES, Qdrant, and Vespa.

#PostgreSQL #Elasticsearch #Korean #BM25
Jaesol Shin

Jaesol Shin

Towards observable, reliable, scalable AI

GitHub

Categories

All Posts 26 Research 1 AI 17 Development 3 DB 5

Tags

AI8 PostgreSQL8 Benchmark7 RAG6 LLM4 zsh4 Claude Code4 OpenAI4 GraphRAG4 LightRAG4 Multi-account3 Dotfiles3 Configuration3 Developer Workflow3 API3 Productivity2 GPT-52 DeepSeek2 GraphDB2 RCTE2 Neo4j2 Apache AGE2 Recursive CTE2 Markdown2 PDF2 Agent2 Self-Improvement2 POMDP2

Archive

2026 26