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Chao-Chun (Joe) Hsu
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Blog

Notes on retrieval, embeddings, and the infrastructure around them. Mostly things I hit while building, written down while they were still fresh.

  • Apr 2025

    My Attempt at Building a Multi-GPU Embedding Server with TEI and Qdrant

    Why there’s no one-click multi-GPU embedding server in 2025, and the TEI + Nginx + FastAPI + Qdrant stack I ended up building instead.

    • retrieval
    • llm
    • embeddings
    • inference
    • caching
  • Dec 2024

    Reproducibility Report of ModernBERT Models for Retrieval Tasks Using DPR

    Fine-tuning ModernBERT-base and -large on MS MARCO with DPR. The reproduced NDCG@10 beats the paper’s reported numbers on nearly every dataset, likely due to batch size.

    • retrieval
    • llm
    • embeddings
    • reproducibility
    • modernbert
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